[PATCH 03/26] block: Abstract out bvec iterator

From: Kent Overstreet
Date: Sat Jun 08 2013 - 22:26:46 EST

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Immutable biovecs are going to require an explicit iterator. To
implement immutable bvecs, a later patch is going to add a bi_bvec_done
member to this struct; for now, this patch effectively just renames
things.

Signed-off-by: Kent Overstreet <koverstreet@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
---
Documentation/block/biodoc.txt | 7 ++-
arch/m68k/emu/nfblock.c | 2 +-
arch/powerpc/sysdev/axonram.c | 3 +-
block/blk-core.c | 36 +++++++-------
block/blk-flush.c | 2 +-
block/blk-lib.c | 12 ++---
block/blk-map.c | 6 +--
block/blk-merge.c | 4 +-
block/blk-throttle.c | 13 ++---
block/elevator.c | 2 +-
drivers/block/aoe/aoecmd.c | 6 +--
drivers/block/brd.c | 4 +-
drivers/block/drbd/drbd_actlog.c | 2 +-
drivers/block/drbd/drbd_bitmap.c | 2 +-
drivers/block/drbd/drbd_receiver.c | 6 +--
drivers/block/drbd/drbd_req.c | 6 +--
drivers/block/drbd/drbd_req.h | 2 +-
drivers/block/floppy.c | 4 +-
drivers/block/loop.c | 4 +-
drivers/block/mtip32xx/mtip32xx.c | 7 +--
drivers/block/nvme-core.c | 25 +++++-----
drivers/block/pktcdvd.c | 51 +++++++++++---------
drivers/block/ps3disk.c | 2 +-
drivers/block/rbd.c | 21 ++++----
drivers/block/rsxx/dev.c | 4 +-
drivers/block/rsxx/dma.c | 4 +-
drivers/block/umem.c | 9 ++--
drivers/block/virtio_blk.c | 4 +-
drivers/block/xen-blkback/blkback.c | 2 +-
drivers/md/bcache/alloc.c | 4 +-
drivers/md/bcache/btree.c | 19 ++++----
drivers/md/bcache/debug.c | 2 +-
drivers/md/bcache/io.c | 26 +++++-----
drivers/md/bcache/journal.c | 12 ++---
drivers/md/bcache/movinggc.c | 4 +-
drivers/md/bcache/request.c | 52 ++++++++++----------
drivers/md/bcache/super.c | 16 +++----
drivers/md/bcache/util.c | 4 +-
drivers/md/bcache/writeback.c | 6 +--
drivers/md/dm-bio-record.h | 12 ++---
drivers/md/dm-bufio.c | 2 +-
drivers/md/dm-cache-policy-mq.c | 4 +-
drivers/md/dm-cache-target.c | 16 ++++---
drivers/md/dm-crypt.c | 20 ++++----
drivers/md/dm-delay.c | 7 +--
drivers/md/dm-flakey.c | 7 +--
drivers/md/dm-io.c | 7 +--
drivers/md/dm-linear.c | 3 +-
drivers/md/dm-raid1.c | 16 +++----
drivers/md/dm-region-hash.c | 3 +-
drivers/md/dm-snap.c | 13 ++---
drivers/md/dm-stripe.c | 13 +++--
drivers/md/dm-thin.c | 23 +++++----
drivers/md/dm-verity.c | 9 ++--
drivers/md/dm.c | 21 ++++----
drivers/md/faulty.c | 19 +++++---
drivers/md/linear.c | 12 ++---
drivers/md/md.c | 25 +++++-----
drivers/md/multipath.c | 13 ++---
drivers/md/raid0.c | 16 ++++---
drivers/md/raid1.c | 63 +++++++++++++-----------
drivers/md/raid10.c | 95 ++++++++++++++++++++-----------------
drivers/md/raid5.c | 72 ++++++++++++++--------------
drivers/s390/block/dcssblk.c | 5 +-
drivers/s390/block/xpram.c | 9 ++--
drivers/scsi/osd/osd_initiator.c | 2 +-
drivers/staging/zram/zram_drv.c | 12 +++--
drivers/target/target_core_iblock.c | 2 +-
fs/bio-integrity.c | 8 ++--
fs/bio.c | 41 ++++++++--------
fs/btrfs/check-integrity.c | 10 ++--
fs/btrfs/compression.c | 17 +++----
fs/btrfs/extent_io.c | 16 +++----
fs/btrfs/file-item.c | 13 ++---
fs/btrfs/inode.c | 17 +++----
fs/btrfs/raid56.c | 22 ++++-----
fs/btrfs/scrub.c | 12 ++---
fs/btrfs/volumes.c | 12 ++---
fs/buffer.c | 12 ++---
fs/direct-io.c | 4 +-
fs/ext4/page-io.c | 4 +-
fs/f2fs/data.c | 2 +-
fs/f2fs/segment.c | 3 +-
fs/gfs2/lops.c | 2 +-
fs/gfs2/ops_fstype.c | 2 +-
fs/hfsplus/wrapper.c | 2 +-
fs/jfs/jfs_logmgr.c | 10 ++--
fs/jfs/jfs_metapage.c | 9 ++--
fs/logfs/dev_bdev.c | 20 ++++----
fs/mpage.c | 2 +-
fs/nfs/blocklayout/blocklayout.c | 9 ++--
fs/nilfs2/segbuf.c | 3 +-
fs/ocfs2/cluster/heartbeat.c | 2 +-
fs/xfs/xfs_aops.c | 2 +-
fs/xfs/xfs_buf.c | 4 +-
include/linux/bio.h | 16 +++----
include/linux/blk_types.h | 19 +++++---
include/trace/events/bcache.h | 20 ++++----
include/trace/events/block.h | 26 +++++-----
include/trace/events/f2fs.h | 4 +-
kernel/power/block_io.c | 2 +-
kernel/trace/blktrace.c | 15 +++---
mm/page_io.c | 10 ++--
103 files changed, 682 insertions(+), 608 deletions(-)

diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index 8df5e8e..2101e71 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -447,14 +447,13 @@ struct bio_vec {
* main unit of I/O for the block layer and lower layers (ie drivers)
*/
struct bio {
- sector_t bi_sector;
struct bio *bi_next; /* request queue link */
struct block_device *bi_bdev; /* target device */
unsigned long bi_flags; /* status, command, etc */
unsigned long bi_rw; /* low bits: r/w, high: priority */

unsigned int bi_vcnt; /* how may bio_vec's */
- unsigned int bi_idx; /* current index into bio_vec array */
+ struct bvec_iter bi_iter; /* current index into bio_vec array */

unsigned int bi_size; /* total size in bytes */
unsigned short bi_phys_segments; /* segments after physaddr coalesce*/
@@ -480,7 +479,7 @@ With this multipage bio design:
- Code that traverses the req list can find all the segments of a bio
by using rq_for_each_segment. This handles the fact that a request
has multiple bios, each of which can have multiple segments.
-- Drivers which can't process a large bio in one shot can use the bi_idx
+- Drivers which can't process a large bio in one shot can use the bi_iter
field to keep track of the next bio_vec entry to process.
(e.g a 1MB bio_vec needs to be handled in max 128kB chunks for IDE)
[TBD: Should preferably also have a bi_voffset and bi_vlen to avoid modifying
@@ -589,7 +588,7 @@ driver should not modify these values. The block layer sets up the
nr_sectors and current_nr_sectors fields (based on the corresponding
hard_xxx values and the number of bytes transferred) and updates it on
every transfer that invokes end_that_request_first. It does the same for the
-buffer, bio, bio->bi_idx fields too.
+buffer, bio, bio->bi_iter fields too.

The buffer field is just a virtual address mapping of the current segment
of the i/o buffer in cases where the buffer resides in low-memory. For high
diff --git a/arch/m68k/emu/nfblock.c b/arch/m68k/emu/nfblock.c
index e301133..9070d6c 100644
--- a/arch/m68k/emu/nfblock.c
+++ b/arch/m68k/emu/nfblock.c
@@ -64,7 +64,7 @@ static void nfhd_make_request(struct request_queue *queue, struct bio *bio)
struct nfhd_device *dev = queue->queuedata;
struct bio_vec *bvec;
int i, dir, len, shift;
- sector_t sec = bio->bi_sector;
+ sector_t sec = bio->bi_iter.bi_sector;

dir = bio_data_dir(bio);
shift = dev->bshift;
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index 1c16141..f33bcba 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -113,7 +113,8 @@ axon_ram_make_request(struct request_queue *queue, struct bio *bio)
unsigned int transfered;
unsigned short idx;

- phys_mem = bank->io_addr + (bio->bi_sector << AXON_RAM_SECTOR_SHIFT);
+ phys_mem = bank->io_addr + (bio->bi_iter.bi_sector <<
+ AXON_RAM_SECTOR_SHIFT);
phys_end = bank->io_addr + bank->size;
transfered = 0;
bio_for_each_segment(vec, bio, idx) {
diff --git a/block/blk-core.c b/block/blk-core.c
index 33c33bc..0704c5c 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -166,7 +166,7 @@ static void req_bio_endio(struct request *rq, struct bio *bio,
bio_advance(bio, nbytes);

/* don't actually finish bio if it's part of flush sequence */
- if (bio->bi_size == 0 && !(rq->cmd_flags & REQ_FLUSH_SEQ))
+ if (bio->bi_iter.bi_size == 0 && !(rq->cmd_flags & REQ_FLUSH_SEQ))
bio_endio(bio, error);
}

@@ -1333,7 +1333,7 @@ void blk_add_request_payload(struct request *rq, struct page *page,
bio->bi_io_vec->bv_offset = 0;
bio->bi_io_vec->bv_len = len;

- bio->bi_size = len;
+ bio->bi_iter.bi_size = len;
bio->bi_vcnt = 1;
bio->bi_phys_segments = 1;

@@ -1358,7 +1358,7 @@ static bool bio_attempt_back_merge(struct request_queue *q, struct request *req,

req->biotail->bi_next = bio;
req->biotail = bio;
- req->__data_len += bio->bi_size;
+ req->__data_len += bio->bi_iter.bi_size;
req->ioprio = ioprio_best(req->ioprio, bio_prio(bio));

drive_stat_acct(req, 0);
@@ -1387,8 +1387,8 @@ static bool bio_attempt_front_merge(struct request_queue *q,
* not touch req->buffer either...
*/
req->buffer = bio_data(bio);
- req->__sector = bio->bi_sector;
- req->__data_len += bio->bi_size;
+ req->__sector = bio->bi_iter.bi_sector;
+ req->__data_len += bio->bi_iter.bi_size;
req->ioprio = ioprio_best(req->ioprio, bio_prio(bio));

drive_stat_acct(req, 0);
@@ -1457,7 +1457,7 @@ void init_request_from_bio(struct request *req, struct bio *bio)
req->cmd_flags |= REQ_FAILFAST_MASK;

req->errors = 0;
- req->__sector = bio->bi_sector;
+ req->__sector = bio->bi_iter.bi_sector;
req->ioprio = bio_prio(bio);
blk_rq_bio_prep(req->q, req, bio);
}
@@ -1583,12 +1583,12 @@ static inline void blk_partition_remap(struct bio *bio)
if (bio_sectors(bio) && bdev != bdev->bd_contains) {
struct hd_struct *p = bdev->bd_part;

- bio->bi_sector += p->start_sect;
+ bio->bi_iter.bi_sector += p->start_sect;
bio->bi_bdev = bdev->bd_contains;

trace_block_bio_remap(bdev_get_queue(bio->bi_bdev), bio,
bdev->bd_dev,
- bio->bi_sector - p->start_sect);
+ bio->bi_iter.bi_sector - p->start_sect);
}
}

@@ -1654,7 +1654,7 @@ static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors)
/* Test device or partition size, when known. */
maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9;
if (maxsector) {
- sector_t sector = bio->bi_sector;
+ sector_t sector = bio->bi_iter.bi_sector;

if (maxsector < nr_sectors || maxsector - nr_sectors < sector) {
/*
@@ -1690,7 +1690,7 @@ generic_make_request_checks(struct bio *bio)
"generic_make_request: Trying to access "
"nonexistent block-device %s (%Lu)\n",
bdevname(bio->bi_bdev, b),
- (long long) bio->bi_sector);
+ (long long) bio->bi_iter.bi_sector);
goto end_io;
}

@@ -1704,9 +1704,9 @@ generic_make_request_checks(struct bio *bio)
}

part = bio->bi_bdev->bd_part;
- if (should_fail_request(part, bio->bi_size) ||
+ if (should_fail_request(part, bio->bi_iter.bi_size) ||
should_fail_request(&part_to_disk(part)->part0,
- bio->bi_size))
+ bio->bi_iter.bi_size))
goto end_io;

/*
@@ -1865,7 +1865,7 @@ void submit_bio(int rw, struct bio *bio)
if (rw & WRITE) {
count_vm_events(PGPGOUT, count);
} else {
- task_io_account_read(bio->bi_size);
+ task_io_account_read(bio->bi_iter.bi_size);
count_vm_events(PGPGIN, count);
}

@@ -1874,7 +1874,7 @@ void submit_bio(int rw, struct bio *bio)
printk(KERN_DEBUG "%s(%d): %s block %Lu on %s (%u sectors)\n",
current->comm, task_pid_nr(current),
(rw & WRITE) ? "WRITE" : "READ",
- (unsigned long long)bio->bi_sector,
+ (unsigned long long)bio->bi_iter.bi_sector,
bdevname(bio->bi_bdev, b),
count);
}
@@ -2007,7 +2007,7 @@ unsigned int blk_rq_err_bytes(const struct request *rq)
for (bio = rq->bio; bio; bio = bio->bi_next) {
if ((bio->bi_rw & ff) != ff)
break;
- bytes += bio->bi_size;
+ bytes += bio->bi_iter.bi_size;
}

/* this could lead to infinite loop */
@@ -2332,9 +2332,9 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
total_bytes = 0;
while (req->bio) {
struct bio *bio = req->bio;
- unsigned bio_bytes = min(bio->bi_size, nr_bytes);
+ unsigned bio_bytes = min(bio->bi_iter.bi_size, nr_bytes);

- if (bio_bytes == bio->bi_size)
+ if (bio_bytes == bio->bi_iter.bi_size)
req->bio = bio->bi_next;

req_bio_endio(req, bio, bio_bytes, error);
@@ -2683,7 +2683,7 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
rq->nr_phys_segments = bio_phys_segments(q, bio);
rq->buffer = bio_data(bio);
}
- rq->__data_len = bio->bi_size;
+ rq->__data_len = bio->bi_iter.bi_size;
rq->bio = rq->biotail = bio;

if (bio->bi_bdev)
diff --git a/block/blk-flush.c b/block/blk-flush.c
index cc2b827..3248998 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -444,7 +444,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
* copied from blk_rq_pos(rq).
*/
if (error_sector)
- *error_sector = bio->bi_sector;
+ *error_sector = bio->bi_iter.bi_sector;

if (!bio_flagged(bio, BIO_UPTODATE))
ret = -EIO;
diff --git a/block/blk-lib.c b/block/blk-lib.c
index d6f50d5..3250620 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -110,12 +110,12 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
req_sects = end_sect - sector;
}

- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_end_io = bio_batch_end_io;
bio->bi_bdev = bdev;
bio->bi_private = &bb;

- bio->bi_size = req_sects << 9;
+ bio->bi_iter.bi_size = req_sects << 9;
nr_sects -= req_sects;
sector = end_sect;

@@ -176,7 +176,7 @@ int blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
break;
}

- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_end_io = bio_batch_end_io;
bio->bi_bdev = bdev;
bio->bi_private = &bb;
@@ -186,11 +186,11 @@ int blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
bio->bi_io_vec->bv_len = bdev_logical_block_size(bdev);

if (nr_sects > max_write_same_sectors) {
- bio->bi_size = max_write_same_sectors << 9;
+ bio->bi_iter.bi_size = max_write_same_sectors << 9;
nr_sects -= max_write_same_sectors;
sector += max_write_same_sectors;
} else {
- bio->bi_size = nr_sects << 9;
+ bio->bi_iter.bi_size = nr_sects << 9;
nr_sects = 0;
}

@@ -242,7 +242,7 @@ int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
break;
}

- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_bdev = bdev;
bio->bi_end_io = bio_batch_end_io;
bio->bi_private = &bb;
diff --git a/block/blk-map.c b/block/blk-map.c
index 623e1cd..ae4ae10 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -20,7 +20,7 @@ int blk_rq_append_bio(struct request_queue *q, struct request *rq,
rq->biotail->bi_next = bio;
rq->biotail = bio;

- rq->__data_len += bio->bi_size;
+ rq->__data_len += bio->bi_iter.bi_size;
}
return 0;
}
@@ -76,7 +76,7 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq,

ret = blk_rq_append_bio(q, rq, bio);
if (!ret)
- return bio->bi_size;
+ return bio->bi_iter.bi_size;

/* if it was boucned we must call the end io function */
bio_endio(bio, 0);
@@ -220,7 +220,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
if (IS_ERR(bio))
return PTR_ERR(bio);

- if (bio->bi_size != len) {
+ if (bio->bi_iter.bi_size != len) {
/*
* Grab an extra reference to this bio, as bio_unmap_user()
* expects to be able to drop it twice as it happens on the
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 5f24482..7750b25 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -532,9 +532,9 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)

int blk_try_merge(struct request *rq, struct bio *bio)
{
- if (blk_rq_pos(rq) + blk_rq_sectors(rq) == bio->bi_sector)
+ if (blk_rq_pos(rq) + blk_rq_sectors(rq) == bio->bi_iter.bi_sector)
return ELEVATOR_BACK_MERGE;
- else if (blk_rq_pos(rq) - bio_sectors(bio) == bio->bi_sector)
+ else if (blk_rq_pos(rq) - bio_sectors(bio) == bio->bi_iter.bi_sector)
return ELEVATOR_FRONT_MERGE;
return ELEVATOR_NO_MERGE;
}
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 3114622..fc06b58 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -590,14 +590,14 @@ static bool tg_with_in_bps_limit(struct throtl_data *td, struct throtl_grp *tg,
do_div(tmp, HZ);
bytes_allowed = tmp;

- if (tg->bytes_disp[rw] + bio->bi_size <= bytes_allowed) {
+ if (tg->bytes_disp[rw] + bio->bi_iter.bi_size <= bytes_allowed) {
if (wait)
*wait = 0;
return 1;
}

/* Calc approx time to dispatch */
- extra_bytes = tg->bytes_disp[rw] + bio->bi_size - bytes_allowed;
+ extra_bytes = tg->bytes_disp[rw] + bio->bi_iter.bi_size - bytes_allowed;
jiffy_wait = div64_u64(extra_bytes * HZ, tg->bps[rw]);

if (!jiffy_wait)
@@ -705,10 +705,11 @@ static void throtl_charge_bio(struct throtl_grp *tg, struct bio *bio)
bool rw = bio_data_dir(bio);

/* Charge the bio to the group */
- tg->bytes_disp[rw] += bio->bi_size;
+ tg->bytes_disp[rw] += bio->bi_iter.bi_size;
tg->io_disp[rw]++;

- throtl_update_dispatch_stats(tg_to_blkg(tg), bio->bi_size, bio->bi_rw);
+ throtl_update_dispatch_stats(tg_to_blkg(tg),
+ bio->bi_iter.bi_size, bio->bi_rw);
}

static void throtl_add_bio_tg(struct throtl_data *td, struct throtl_grp *tg,
@@ -1128,7 +1129,7 @@ bool blk_throtl_bio(struct request_queue *q, struct bio *bio)
if (tg) {
if (tg_no_rule_group(tg, rw)) {
throtl_update_dispatch_stats(tg_to_blkg(tg),
- bio->bi_size, bio->bi_rw);
+ bio->bi_iter.bi_size, bio->bi_rw);
goto out_unlock_rcu;
}
}
@@ -1175,7 +1176,7 @@ queue_bio:
throtl_log_tg(td, tg, "[%c] bio. bdisp=%llu sz=%u bps=%llu"
" iodisp=%u iops=%u queued=%d/%d",
rw == READ ? 'R' : 'W',
- tg->bytes_disp[rw], bio->bi_size, tg->bps[rw],
+ tg->bytes_disp[rw], bio->bi_iter.bi_size, tg->bps[rw],
tg->io_disp[rw], tg->iops[rw],
tg->nr_queued[READ], tg->nr_queued[WRITE]);

diff --git a/block/elevator.c b/block/elevator.c
index eba5b04..ddb92b6 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -442,7 +442,7 @@ int elv_merge(struct request_queue *q, struct request **req, struct bio *bio)
/*
* See if our hash lookup can find a potential backmerge.
*/
- __rq = elv_rqhash_find(q, bio->bi_sector);
+ __rq = elv_rqhash_find(q, bio->bi_iter.bi_sector);
if (__rq && elv_rq_merge_ok(__rq, bio)) {
*req = __rq;
return ELEVATOR_BACK_MERGE;
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index fc803ec..8716181 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -923,8 +923,8 @@ bufinit(struct buf *buf, struct request *rq, struct bio *bio)
memset(buf, 0, sizeof(*buf));
buf->rq = rq;
buf->bio = bio;
- buf->resid = bio->bi_size;
- buf->sector = bio->bi_sector;
+ buf->resid = bio->bi_iter.bi_size;
+ buf->sector = bio->bi_iter.bi_sector;
bio_pageinc(bio);
buf->bv = bio_iovec(bio);
buf->bv_resid = buf->bv->bv_len;
@@ -1146,7 +1146,7 @@ aoe_end_request(struct aoedev *d, struct request *rq, int fastfail)
do {
bio = rq->bio;
bok = !fastfail && test_bit(BIO_UPTODATE, &bio->bi_flags);
- } while (__blk_end_request(rq, bok ? 0 : -EIO, bio->bi_size));
+ } while (__blk_end_request(rq, bok ? 0 : -EIO, bio->bi_iter.bi_size));

/* cf. http://lkml.org/lkml/2006/10/31/28 */
if (!fastfail)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 9bf4371..e269532 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -333,13 +333,13 @@ static void brd_make_request(struct request_queue *q, struct bio *bio)
int i;
int err = -EIO;

- sector = bio->bi_sector;
+ sector = bio->bi_iter.bi_sector;
if (bio_end_sector(bio) > get_capacity(bdev->bd_disk))
goto out;

if (unlikely(bio->bi_rw & REQ_DISCARD)) {
err = 0;
- discard_from_brd(brd, sector, bio->bi_size);
+ discard_from_brd(brd, sector, bio->bi_iter.bi_size);
goto out;
}

diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 6608076..6182761 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -159,7 +159,7 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,

bio = bio_alloc_drbd(GFP_NOIO);
bio->bi_bdev = bdev->md_bdev;
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
err = -EIO;
if (bio_add_page(bio, page, size, 0) != size)
goto out;
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 64fbb83..d0d847a 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1028,7 +1028,7 @@ static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must
} else
page = b->bm_pages[page_nr];
bio->bi_bdev = mdev->ldev->md_bdev;
- bio->bi_sector = on_disk_sector;
+ bio->bi_iter.bi_sector = on_disk_sector;
/* bio_add_page of a single page to an empty bio will always succeed,
* according to api. Do we want to assert that? */
bio_add_page(bio, page, len, 0);
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 4222aff..c342f93 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1333,7 +1333,7 @@ next_bio:
goto fail;
}
/* > peer_req->i.sector, unless this is the first bio */
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_bdev = mdev->ldev->backing_bdev;
bio->bi_rw = rw;
bio->bi_private = peer_req;
@@ -1353,7 +1353,7 @@ next_bio:
dev_err(DEV,
"bio_add_page failed for len=%u, "
"bi_vcnt=0 (bi_sector=%llu)\n",
- len, (unsigned long long)bio->bi_sector);
+ len, (uint64_t)bio->bi_iter.bi_sector);
err = -ENOSPC;
goto fail;
}
@@ -1615,7 +1615,7 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req,
mdev->recv_cnt += data_size>>9;

bio = req->master_bio;
- D_ASSERT(sector == bio->bi_sector);
+ D_ASSERT(sector == bio->bi_iter.bi_sector);

bio_for_each_segment(bvec, bio, i) {
void *mapped = kmap(bvec->bv_page) + bvec->bv_offset;
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index c24379f..a6bedaa 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -77,8 +77,8 @@ static struct drbd_request *drbd_req_new(struct drbd_conf *mdev,
req->epoch = 0;

drbd_clear_interval(&req->i);
- req->i.sector = bio_src->bi_sector;
- req->i.size = bio_src->bi_size;
+ req->i.sector = bio_src->bi_iter.bi_sector;
+ req->i.size = bio_src->bi_iter.bi_size;
req->i.local = true;
req->i.waiting = false;

@@ -1280,7 +1280,7 @@ void drbd_make_request(struct request_queue *q, struct bio *bio)
/*
* what we "blindly" assume:
*/
- D_ASSERT(IS_ALIGNED(bio->bi_size, 512));
+ D_ASSERT(IS_ALIGNED(bio->bi_iter.bi_size, 512));

inc_ap_bio(mdev);
__drbd_make_request(mdev, bio, start_time);
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index 978cb1a..28e15d9 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -269,7 +269,7 @@ static inline void drbd_req_make_private_bio(struct drbd_request *req, struct bi

/* Short lived temporary struct on the stack.
* We could squirrel the error to be returned into
- * bio->bi_size, or similar. But that would be too ugly. */
+ * bio->bi_iter.bi_size, or similar. But that would be too ugly. */
struct bio_and_error {
struct bio *bio;
int error;
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 04ceb7e..bf7b8b2 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3775,9 +3775,9 @@ static int __floppy_read_block_0(struct block_device *bdev)
bio_vec.bv_len = size;
bio_vec.bv_offset = 0;
bio.bi_vcnt = 1;
- bio.bi_size = size;
+ bio.bi_iter.bi_size = size;
bio.bi_bdev = bdev;
- bio.bi_sector = 0;
+ bio.bi_iter.bi_sector = 0;
bio.bi_flags = (1 << BIO_QUIET);
init_completion(&complete);
bio.bi_private = &complete;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index d92d50f..3df42e6 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -415,7 +415,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
loff_t pos;
int ret;

- pos = ((loff_t) bio->bi_sector << 9) + lo->lo_offset;
+ pos = ((loff_t) bio->bi_iter.bi_sector << 9) + lo->lo_offset;

if (bio_rw(bio) == WRITE) {
struct file *file = lo->lo_backing_file;
@@ -444,7 +444,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
goto out;
}
ret = file->f_op->fallocate(file, mode, pos,
- bio->bi_size);
+ bio->bi_iter.bi_size);
if (unlikely(ret && ret != -EINVAL &&
ret != -EOPNOTSUPP))
ret = -EIO;
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 847107e..8d6729c 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3889,7 +3889,7 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
}

if (unlikely(bio->bi_rw & REQ_DISCARD)) {
- bio_endio(bio, mtip_send_trim(dd, bio->bi_sector,
+ bio_endio(bio, mtip_send_trim(dd, bio->bi_iter.bi_sector,
bio_sectors(bio)));
return;
}
@@ -3902,7 +3902,8 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)

if (bio_data_dir(bio) == WRITE && bio_sectors(bio) <= 64 &&
dd->unal_qdepth) {
- if (bio->bi_sector % 8 != 0) /* Unaligned on 4k boundaries */
+ if (bio->bi_iter.bi_sector % 8 != 0)
+ /* Unaligned on 4k boundaries */
unaligned = 1;
else if (bio_sectors(bio) % 8 != 0) /* Aligned but not 4k/8k */
unaligned = 1;
@@ -3930,7 +3931,7 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)

/* Issue the read/write. */
mtip_hw_submit_io(dd,
- bio->bi_sector,
+ bio->bi_iter.bi_sector,
bio_sectors(bio),
nents,
tag,
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 8efdfaa..c80d308 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -435,7 +435,7 @@ static struct nvme_bio_pair *nvme_bio_split(struct bio *bio, int idx,
{
struct nvme_bio_pair *bp;

- BUG_ON(len > bio->bi_size);
+ BUG_ON(len > bio->bi_iter.bi_size);
BUG_ON(idx > bio->bi_vcnt);

bp = kmalloc(sizeof(*bp), GFP_ATOMIC);
@@ -446,11 +446,11 @@ static struct nvme_bio_pair *nvme_bio_split(struct bio *bio, int idx,
bp->b1 = *bio;
bp->b2 = *bio;

- bp->b1.bi_size = len;
- bp->b2.bi_size -= len;
+ bp->b1.bi_iter.bi_size = len;
+ bp->b2.bi_iter.bi_size -= len;
bp->b1.bi_vcnt = idx;
- bp->b2.bi_idx = idx;
- bp->b2.bi_sector += len >> 9;
+ bp->b2.bi_iter.bi_idx = idx;
+ bp->b2.bi_iter.bi_sector += len >> 9;

if (offset) {
bp->bv1 = kmalloc(bio->bi_max_vecs * sizeof(struct bio_vec),
@@ -519,11 +519,12 @@ static int nvme_map_bio(struct nvme_queue *nvmeq, struct nvme_iod *iod,
{
struct bio_vec *bvec, *bvprv = NULL;
struct scatterlist *sg = NULL;
- int i, length = 0, nsegs = 0, split_len = bio->bi_size;
+ int i, length = 0, nsegs = 0, split_len = bio->bi_iter.bi_size;

if (nvmeq->dev->stripe_size)
split_len = nvmeq->dev->stripe_size -
- ((bio->bi_sector << 9) & (nvmeq->dev->stripe_size - 1));
+ ((bio->bi_iter.bi_sector << 9) &
+ (nvmeq->dev->stripe_size - 1));

sg_init_table(iod->sg, psegs);
bio_for_each_segment(bvec, bio, i) {
@@ -551,7 +552,7 @@ static int nvme_map_bio(struct nvme_queue *nvmeq, struct nvme_iod *iod,
if (dma_map_sg(nvmeq->q_dmadev, iod->sg, iod->nents, dma_dir) == 0)
return -ENOMEM;

- BUG_ON(length != bio->bi_size);
+ BUG_ON(length != bio->bi_iter.bi_size);
return length;
}

@@ -575,8 +576,8 @@ static int nvme_submit_discard(struct nvme_queue *nvmeq, struct nvme_ns *ns,
iod->npages = 0;

range->cattr = cpu_to_le32(0);
- range->nlb = cpu_to_le32(bio->bi_size >> ns->lba_shift);
- range->slba = cpu_to_le64(nvme_block_nr(ns, bio->bi_sector));
+ range->nlb = cpu_to_le32(bio->bi_iter.bi_size >> ns->lba_shift);
+ range->slba = cpu_to_le64(nvme_block_nr(ns, bio->bi_iter.bi_sector));

memset(cmnd, 0, sizeof(*cmnd));
cmnd->dsm.opcode = nvme_cmd_dsm;
@@ -640,7 +641,7 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
return result;
}

- iod = nvme_alloc_iod(psegs, bio->bi_size, GFP_ATOMIC);
+ iod = nvme_alloc_iod(psegs, bio->bi_iter.bi_size, GFP_ATOMIC);
if (!iod)
goto nomem;
iod->private = bio;
@@ -689,7 +690,7 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
cmnd->rw.nsid = cpu_to_le32(ns->ns_id);
length = nvme_setup_prps(nvmeq->dev, &cmnd->common, iod, length,
GFP_ATOMIC);
- cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, bio->bi_sector));
+ cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, bio->bi_iter.bi_sector));
cmnd->rw.length = cpu_to_le16((length >> ns->lba_shift) - 1);
cmnd->rw.control = cpu_to_le16(control);
cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt);
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 3c08983..68a6d2a 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -658,7 +658,7 @@ static struct pkt_rb_node *pkt_rbtree_find(struct pktcdvd_device *pd, sector_t s

for (;;) {
tmp = rb_entry(n, struct pkt_rb_node, rb_node);
- if (s <= tmp->bio->bi_sector)
+ if (s <= tmp->bio->bi_iter.bi_sector)
next = n->rb_left;
else
next = n->rb_right;
@@ -667,12 +667,12 @@ static struct pkt_rb_node *pkt_rbtree_find(struct pktcdvd_device *pd, sector_t s
n = next;
}

- if (s > tmp->bio->bi_sector) {
+ if (s > tmp->bio->bi_iter.bi_sector) {
tmp = pkt_rbtree_next(tmp);
if (!tmp)
return NULL;
}
- BUG_ON(s > tmp->bio->bi_sector);
+ BUG_ON(s > tmp->bio->bi_iter.bi_sector);
return tmp;
}

@@ -683,13 +683,13 @@ static void pkt_rbtree_insert(struct pktcdvd_device *pd, struct pkt_rb_node *nod
{
struct rb_node **p = &pd->bio_queue.rb_node;
struct rb_node *parent = NULL;
- sector_t s = node->bio->bi_sector;
+ sector_t s = node->bio->bi_iter.bi_sector;
struct pkt_rb_node *tmp;

while (*p) {
parent = *p;
tmp = rb_entry(parent, struct pkt_rb_node, rb_node);
- if (s < tmp->bio->bi_sector)
+ if (s < tmp->bio->bi_iter.bi_sector)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
@@ -867,7 +867,8 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
spin_lock(&pd->iosched.lock);
bio = bio_list_peek(&pd->iosched.write_queue);
spin_unlock(&pd->iosched.lock);
- if (bio && (bio->bi_sector == pd->iosched.last_write))
+ if (bio && (bio->bi_iter.bi_sector ==
+ pd->iosched.last_write))
need_write_seek = 0;
if (need_write_seek && reads_queued) {
if (atomic_read(&pd->cdrw.pending_bios) > 0) {
@@ -898,7 +899,8 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
continue;

if (bio_data_dir(bio) == READ)
- pd->iosched.successive_reads += bio->bi_size >> 10;
+ pd->iosched.successive_reads +=
+ bio->bi_iter.bi_size >> 10;
else {
pd->iosched.successive_reads = 0;
pd->iosched.last_write = bio_end_sector(bio);
@@ -987,7 +989,8 @@ static void pkt_end_io_read(struct bio *bio, int err)
BUG_ON(!pd);

VPRINTK("pkt_end_io_read: bio=%p sec0=%llx sec=%llx err=%d\n", bio,
- (unsigned long long)pkt->sector, (unsigned long long)bio->bi_sector, err);
+ (unsigned long long)pkt->sector,
+ (unsigned long long)bio->bi_iter.bi_sector, err);

if (err)
atomic_inc(&pkt->io_errors);
@@ -1035,8 +1038,9 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
memset(written, 0, sizeof(written));
spin_lock(&pkt->lock);
bio_list_for_each(bio, &pkt->orig_bios) {
- int first_frame = (bio->bi_sector - pkt->sector) / (CD_FRAMESIZE >> 9);
- int num_frames = bio->bi_size / CD_FRAMESIZE;
+ int first_frame = (bio->bi_iter.bi_sector - pkt->sector) /
+ (CD_FRAMESIZE >> 9);
+ int num_frames = bio->bi_iter.bi_size / CD_FRAMESIZE;
pd->stats.secs_w += num_frames * (CD_FRAMESIZE >> 9);
BUG_ON(first_frame < 0);
BUG_ON(first_frame + num_frames > pkt->frames);
@@ -1062,7 +1066,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)

bio = pkt->r_bios[f];
bio_reset(bio);
- bio->bi_sector = pkt->sector + f * (CD_FRAMESIZE >> 9);
+ bio->bi_iter.bi_sector = pkt->sector + f * (CD_FRAMESIZE >> 9);
bio->bi_bdev = pd->bdev;
bio->bi_end_io = pkt_end_io_read;
bio->bi_private = pkt;
@@ -1159,8 +1163,8 @@ static int pkt_start_recovery(struct packet_data *pkt)
bio_reset(pkt->bio);
pkt->bio->bi_bdev = pd->bdev;
pkt->bio->bi_rw = REQ_WRITE;
- pkt->bio->bi_sector = new_sector;
- pkt->bio->bi_size = pkt->frames * CD_FRAMESIZE;
+ pkt->bio->bi_iter.bi_sector = new_sector;
+ pkt->bio->bi_iter.bi_size = pkt->frames * CD_FRAMESIZE;
pkt->bio->bi_vcnt = pkt->frames;

pkt->bio->bi_end_io = pkt_end_io_packet_write;
@@ -1223,7 +1227,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
node = first_node;
while (node) {
bio = node->bio;
- zone = ZONE(bio->bi_sector, pd);
+ zone = ZONE(bio->bi_iter.bi_sector, pd);
list_for_each_entry(p, &pd->cdrw.pkt_active_list, list) {
if (p->sector == zone) {
bio = NULL;
@@ -1263,13 +1267,13 @@ try_next_bio:
while ((node = pkt_rbtree_find(pd, zone)) != NULL) {
bio = node->bio;
VPRINTK("pkt_handle_queue: found zone=%llx\n",
- (unsigned long long)ZONE(bio->bi_sector, pd));
- if (ZONE(bio->bi_sector, pd) != zone)
+ (unsigned long long)ZONE(bio->bi_iter.bi_sector, pd));
+ if (ZONE(bio->bi_iter.bi_sector, pd) != zone)
break;
pkt_rbtree_erase(pd, node);
spin_lock(&pkt->lock);
bio_list_add(&pkt->orig_bios, bio);
- pkt->write_size += bio->bi_size / CD_FRAMESIZE;
+ pkt->write_size += bio->bi_iter.bi_size / CD_FRAMESIZE;
spin_unlock(&pkt->lock);
}
/* check write congestion marks, and if bio_queue_size is
@@ -1303,7 +1307,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
struct bio_vec *bvec = pkt->w_bio->bi_io_vec;

bio_reset(pkt->w_bio);
- pkt->w_bio->bi_sector = pkt->sector;
+ pkt->w_bio->bi_iter.bi_sector = pkt->sector;
pkt->w_bio->bi_bdev = pd->bdev;
pkt->w_bio->bi_end_io = pkt_end_io_packet_write;
pkt->w_bio->bi_private = pkt;
@@ -2382,18 +2386,18 @@ static void pkt_make_request(struct request_queue *q, struct bio *bio)

if (!test_bit(PACKET_WRITABLE, &pd->flags)) {
printk(DRIVER_NAME": WRITE for ro device %s (%llu)\n",
- pd->name, (unsigned long long)bio->bi_sector);
+ pd->name, (unsigned long long)bio->bi_iter.bi_sector);
goto end_io;
}

- if (!bio->bi_size || (bio->bi_size % CD_FRAMESIZE)) {
+ if (!bio->bi_iter.bi_size || (bio->bi_iter.bi_size % CD_FRAMESIZE)) {
printk(DRIVER_NAME": wrong bio size\n");
goto end_io;
}

blk_queue_bounce(q, &bio);

- zone = ZONE(bio->bi_sector, pd);
+ zone = ZONE(bio->bi_iter.bi_sector, pd);
VPRINTK("pkt_make_request: start = %6llx stop = %6llx\n",
(unsigned long long)bio->bi_sector,
(unsigned long long)bio_end_sector(bio));
@@ -2407,7 +2411,7 @@ static void pkt_make_request(struct request_queue *q, struct bio *bio)
last_zone = ZONE(bio_end_sector(bio) - 1, pd);
if (last_zone != zone) {
BUG_ON(last_zone != zone + pd->settings.size);
- first_sectors = last_zone - bio->bi_sector;
+ first_sectors = last_zone - bio->bi_iter.bi_sector;
bp = bio_split(bio, first_sectors);
BUG_ON(!bp);
pkt_make_request(q, &bp->bio1);
@@ -2429,7 +2433,8 @@ static void pkt_make_request(struct request_queue *q, struct bio *bio)
if ((pkt->state == PACKET_WAITING_STATE) ||
(pkt->state == PACKET_READ_WAIT_STATE)) {
bio_list_add(&pkt->orig_bios, bio);
- pkt->write_size += bio->bi_size / CD_FRAMESIZE;
+ pkt->write_size +=
+ bio->bi_iter.bi_size / CD_FRAMESIZE;
if ((pkt->write_size >= pkt->frames) &&
(pkt->state == PACKET_WAITING_STATE)) {
atomic_inc(&pkt->run_sm);
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index d754a88..464be78 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -104,7 +104,7 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev,
dev_dbg(&dev->sbd.core,
"%s:%u: bio %u: %u segs %u sectors from %lu\n",
__func__, __LINE__, i, bio_segments(iter.bio),
- bio_sectors(iter.bio), iter.bio->bi_sector);
+ bio_sectors(iter.bio), iter.bio->bi_iter.bi_sector);

size = bvec->bv_len;
buf = bvec_kmap_irq(bvec, &flags);
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index d6d3140..ce7b1aa 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1180,14 +1180,14 @@ static struct bio *bio_clone_range(struct bio *bio_src,

/* Handle the easy case for the caller */

- if (!offset && len == bio_src->bi_size)
+ if (!offset && len == bio_src->bi_iter.bi_size)
return bio_clone(bio_src, gfpmask);

if (WARN_ON_ONCE(!len))
return NULL;
- if (WARN_ON_ONCE(len > bio_src->bi_size))
+ if (WARN_ON_ONCE(len > bio_src->bi_iter.bi_size))
return NULL;
- if (WARN_ON_ONCE(offset > bio_src->bi_size - len))
+ if (WARN_ON_ONCE(offset > bio_src->bi_iter.bi_size - len))
return NULL;

/* Find first affected segment... */
@@ -1217,7 +1217,8 @@ static struct bio *bio_clone_range(struct bio *bio_src,
return NULL; /* ENOMEM */

bio->bi_bdev = bio_src->bi_bdev;
- bio->bi_sector = bio_src->bi_sector + (offset >> SECTOR_SHIFT);
+ bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector +
+ (offset >> SECTOR_SHIFT);
bio->bi_rw = bio_src->bi_rw;
bio->bi_flags |= 1 << BIO_CLONED;

@@ -1236,8 +1237,7 @@ static struct bio *bio_clone_range(struct bio *bio_src,
}

bio->bi_vcnt = vcnt;
- bio->bi_size = len;
- bio->bi_idx = 0;
+ bio->bi_iter.bi_size = len;

return bio;
}
@@ -1268,7 +1268,7 @@ static struct bio *bio_chain_clone_range(struct bio **bio_src,

/* Build up a chain of clone bios up to the limit */

- if (!bi || off >= bi->bi_size || !len)
+ if (!bi || off >= bi->bi_iter.bi_size || !len)
return NULL; /* Nothing to clone */

end = &chain;
@@ -1280,7 +1280,7 @@ static struct bio *bio_chain_clone_range(struct bio **bio_src,
rbd_warn(NULL, "bio_chain exhausted with %u left", len);
goto out_err; /* EINVAL; ran out of bio's */
}
- bi_size = min_t(unsigned int, bi->bi_size - off, len);
+ bi_size = min_t(unsigned int, bi->bi_iter.bi_size - off, len);
bio = bio_clone_range(bi, off, bi_size, gfpmask);
if (!bio)
goto out_err; /* ENOMEM */
@@ -1289,7 +1289,7 @@ static struct bio *bio_chain_clone_range(struct bio **bio_src,
end = &bio->bi_next;

off += bi_size;
- if (off == bi->bi_size) {
+ if (off == bi->bi_iter.bi_size) {
bi = bi->bi_next;
off = 0;
}
@@ -2183,7 +2183,8 @@ static int rbd_img_request_fill(struct rbd_img_request *img_request,

if (type == OBJ_REQUEST_BIO) {
bio_list = data_desc;
- rbd_assert(img_offset == bio_list->bi_sector << SECTOR_SHIFT);
+ rbd_assert(img_offset ==
+ bio_list->bi_iter.bi_sector << SECTOR_SHIFT);
} else {
rbd_assert(type == OBJ_REQUEST_PAGES);
pages = data_desc;
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index 4346d17..44d045b 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -180,7 +180,7 @@ static void rsxx_make_request(struct request_queue *q, struct bio *bio)
goto req_err;
}

- if (bio->bi_size == 0) {
+ if (bio->bi_iter.bi_size == 0) {
dev_err(CARD_TO_DEV(card), "size zero BIO!\n");
goto req_err;
}
@@ -200,7 +200,7 @@ static void rsxx_make_request(struct request_queue *q, struct bio *bio)

dev_dbg(CARD_TO_DEV(card), "BIO[%c]: meta: %p addr8: x%llx size: %d\n",
bio_data_dir(bio) ? 'W' : 'R', bio_meta,
- (u64)bio->bi_sector << 9, bio->bi_size);
+ (u64)bio->bi_iter.bi_sector << 9, bio->bi_iter.bi_size);

st = rsxx_dma_queue_bio(card, bio, &bio_meta->pending_dmas,
bio_dma_done_cb, bio_meta);
diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index 0607513..c9bba8b 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -642,7 +642,7 @@ int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
int st;
int i;

- addr8 = bio->bi_sector << 9; /* sectors are 512 bytes */
+ addr8 = bio->bi_iter.bi_sector << 9; /* sectors are 512 bytes */
atomic_set(n_dmas, 0);

for (i = 0; i < card->n_targets; i++) {
@@ -651,7 +651,7 @@ int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
}

if (bio->bi_rw & REQ_DISCARD) {
- bv_len = bio->bi_size;
+ bv_len = bio->bi_iter.bi_size;

while (bv_len > 0) {
tgt = rsxx_get_dma_tgt(card, addr8);
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index ad70868..dab4f1a 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -352,8 +352,8 @@ static int add_bio(struct cardinfo *card)
bio = card->currentbio;
if (!bio && card->bio) {
card->currentbio = card->bio;
- card->current_idx = card->bio->bi_idx;
- card->current_sector = card->bio->bi_sector;
+ card->current_idx = card->bio->bi_iter.bi_idx;
+ card->current_sector = card->bio->bi_iter.bi_sector;
card->bio = card->bio->bi_next;
if (card->bio == NULL)
card->biotail = &card->bio;
@@ -451,7 +451,7 @@ static void process_page(unsigned long data)
if (page->idx >= bio->bi_vcnt) {
page->bio = bio->bi_next;
if (page->bio)
- page->idx = page->bio->bi_idx;
+ page->idx = page->bio->bi_iter.bi_idx;
}

pci_unmap_page(card->dev, desc->data_dma_handle,
@@ -532,7 +532,8 @@ static void mm_make_request(struct request_queue *q, struct bio *bio)
{
struct cardinfo *card = q->queuedata;
pr_debug("mm_make_request %llu %u\n",
- (unsigned long long)bio->bi_sector, bio->bi_size);
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio->bi_iter.bi_size);

spin_lock_irq(&card->lock);
*card->biotail = bio;
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 6472395..f61f366 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -184,7 +184,7 @@ static void virtblk_bio_send_data(struct virtblk_req *vbr)

vbr->flags &= ~VBLK_IS_FLUSH;
vbr->out_hdr.type = 0;
- vbr->out_hdr.sector = bio->bi_sector;
+ vbr->out_hdr.sector = bio->bi_iter.bi_sector;
vbr->out_hdr.ioprio = bio_prio(bio);

if (blk_bio_map_sg(vblk->disk->queue, bio, vbr->sg)) {
@@ -400,7 +400,7 @@ static void virtblk_make_request(struct request_queue *q, struct bio *bio)
vbr->flags |= VBLK_REQ_FLUSH;
if (bio->bi_rw & REQ_FUA)
vbr->flags |= VBLK_REQ_FUA;
- if (bio->bi_size)
+ if (bio->bi_iter.bi_size)
vbr->flags |= VBLK_REQ_DATA;

if (unlikely(vbr->flags & VBLK_REQ_FLUSH))
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index dd5b2fe..0f4c746 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -972,7 +972,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
bio->bi_bdev = preq.bdev;
bio->bi_private = pending_req;
bio->bi_end_io = end_block_io_op;
- bio->bi_sector = preq.sector_number;
+ bio->bi_iter.bi_sector = preq.sector_number;
}

preq.sector_number += seg[i].nsec;
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index 048f294..cbb8ccd 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -175,12 +175,12 @@ static void do_discard(struct cache *ca, long bucket)

bio_init(&d->bio);

- d->bio.bi_sector = bucket_to_sector(ca->set, d->bucket);
+ d->bio.bi_iter.bi_sector = bucket_to_sector(ca->set, d->bucket);
d->bio.bi_bdev = ca->bdev;
d->bio.bi_rw = REQ_WRITE|REQ_DISCARD;
d->bio.bi_max_vecs = 1;
d->bio.bi_io_vec = d->bio.bi_inline_vecs;
- d->bio.bi_size = bucket_bytes(ca);
+ d->bio.bi_iter.bi_size = bucket_bytes(ca);
d->bio.bi_end_io = discard_endio;
bio_set_prio(&d->bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 6830190..d43f480 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -258,7 +258,7 @@ void bch_btree_read(struct btree *b)

btree_bio_init(b);
b->bio->bi_rw = REQ_META|READ_SYNC;
- b->bio->bi_size = KEY_SIZE(&b->key) << 9;
+ b->bio->bi_iter.bi_size = KEY_SIZE(&b->key) << 9;

bch_bio_map(b->bio, b->sets[0].data);

@@ -327,7 +327,7 @@ static void do_btree_write(struct btree *b)

btree_bio_init(b);
b->bio->bi_rw = REQ_META|WRITE_SYNC;
- b->bio->bi_size = set_blocks(i, b->c) * block_bytes(b->c);
+ b->bio->bi_iter.bi_size = set_blocks(i, b->c) * block_bytes(b->c);
bch_bio_map(b->bio, i);

bkey_copy(&k.key, &b->key);
@@ -2171,11 +2171,11 @@ static int submit_partial_cache_miss(struct btree *b, struct btree_op *op,
unsigned sectors = INT_MAX;

if (KEY_INODE(k) == op->inode) {
- if (KEY_START(k) <= bio->bi_sector)
+ if (KEY_START(k) <= bio->bi_iter.bi_sector)
break;

sectors = min_t(uint64_t, sectors,
- KEY_START(k) - bio->bi_sector);
+ KEY_START(k) - bio->bi_iter.bi_sector);
}

ret = s->d->cache_miss(b, s, bio, sectors);
@@ -2207,12 +2207,12 @@ static int submit_partial_cache_hit(struct btree *b, struct btree_op *op,

while (!op->lookup_done &&
KEY_INODE(k) == op->inode &&
- bio->bi_sector < KEY_OFFSET(k)) {
+ bio->bi_iter.bi_sector < KEY_OFFSET(k)) {
struct bkey *bio_key;
sector_t sector = PTR_OFFSET(k, ptr) +
- (bio->bi_sector - KEY_START(k));
+ (bio->bi_iter.bi_sector - KEY_START(k));
unsigned sectors = min_t(uint64_t, INT_MAX,
- KEY_OFFSET(k) - bio->bi_sector);
+ KEY_OFFSET(k) - bio->bi_iter.bi_sector);

n = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
if (n == bio)
@@ -2252,10 +2252,11 @@ int bch_btree_search_recurse(struct btree *b, struct btree_op *op)
int ret = 0;
struct bkey *k;
struct btree_iter iter;
- bch_btree_iter_init(b, &iter, &KEY(op->inode, bio->bi_sector, 0));
+ bch_btree_iter_init(b, &iter, &KEY(op->inode,
+ bio->bi_iter.bi_sector, 0));

pr_debug("at %s searching for %u:%llu", pbtree(b), op->inode,
- (uint64_t) bio->bi_sector);
+ (uint64_t) bio->bi_iter.bi_sector);

do {
k = bch_btree_iter_next_filter(&iter, b, bch_ptr_bad);
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 5941ed7..4bc7c14 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -216,7 +216,7 @@ void bch_data_verify(struct search *s)
printk(KERN_ERR
"bcache (%s): verify failed at sector %llu\n",
bdevname(dc->bdev, name),
- (uint64_t) s->orig_bio->bi_sector);
+ (uint64_t) s->orig_bio->bi_iter.bi_sector);

kunmap(bv->bv_page);
kunmap(check->bi_io_vec[i].bv_page);
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index e5d27a8..28f06ca 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -19,18 +19,18 @@ static void bch_bi_idx_hack_endio(struct bio *bio, int error)

static void bch_generic_make_request_hack(struct bio *bio)
{
- if (bio->bi_idx) {
+ if (bio->bi_iter.bi_idx) {
struct bio *clone = bio_alloc(GFP_NOIO, bio_segments(bio));

memcpy(clone->bi_io_vec,
bio_iovec(bio),
bio_segments(bio) * sizeof(struct bio_vec));

- clone->bi_sector = bio->bi_sector;
+ clone->bi_iter.bi_sector = bio->bi_iter.bi_sector;
clone->bi_bdev = bio->bi_bdev;
clone->bi_rw = bio->bi_rw;
clone->bi_vcnt = bio_segments(bio);
- clone->bi_size = bio->bi_size;
+ clone->bi_iter.bi_size = bio->bi_iter.bi_size;

clone->bi_private = bio;
clone->bi_end_io = bch_bi_idx_hack_endio;
@@ -70,7 +70,7 @@ static void bch_generic_make_request_hack(struct bio *bio)
struct bio *bch_bio_split(struct bio *bio, int sectors,
gfp_t gfp, struct bio_set *bs)
{
- unsigned idx = bio->bi_idx, vcnt = 0, nbytes = sectors << 9;
+ unsigned idx = bio->bi_iter.bi_idx, vcnt = 0, nbytes = sectors << 9;
struct bio_vec *bv;
struct bio *ret = NULL;

@@ -86,7 +86,7 @@ struct bio *bch_bio_split(struct bio *bio, int sectors,
}

bio_for_each_segment(bv, bio, idx) {
- vcnt = idx - bio->bi_idx;
+ vcnt = idx - bio->bi_iter.bi_idx;

if (!nbytes) {
ret = bio_alloc_bioset(gfp, vcnt, bs);
@@ -115,15 +115,15 @@ struct bio *bch_bio_split(struct bio *bio, int sectors,
}
out:
ret->bi_bdev = bio->bi_bdev;
- ret->bi_sector = bio->bi_sector;
- ret->bi_size = sectors << 9;
+ ret->bi_iter.bi_sector = bio->bi_iter.bi_sector;
+ ret->bi_iter.bi_size = sectors << 9;
ret->bi_rw = bio->bi_rw;
ret->bi_vcnt = vcnt;
ret->bi_max_vecs = vcnt;

- bio->bi_sector += sectors;
- bio->bi_size -= sectors << 9;
- bio->bi_idx = idx;
+ bio->bi_iter.bi_sector += sectors;
+ bio->bi_iter.bi_size -= sectors << 9;
+ bio->bi_iter.bi_idx = idx;

if (bio_integrity(bio)) {
if (bio_integrity_clone(ret, bio, gfp)) {
@@ -158,7 +158,7 @@ static unsigned bch_bio_max_sectors(struct bio *bio)
bio_for_each_segment(bv, bio, i) {
struct bvec_merge_data bvm = {
.bi_bdev = bio->bi_bdev,
- .bi_sector = bio->bi_sector,
+ .bi_sector = bio->bi_iter.bi_sector,
.bi_size = ret << 9,
.bi_rw = bio->bi_rw,
};
@@ -268,8 +268,8 @@ void __bch_submit_bbio(struct bio *bio, struct cache_set *c)
{
struct bbio *b = container_of(bio, struct bbio, bio);

- bio->bi_sector = PTR_OFFSET(&b->key, 0);
- bio->bi_bdev = PTR_CACHE(c, &b->key, 0)->bdev;
+ bio->bi_iter.bi_sector = PTR_OFFSET(&b->key, 0);
+ bio->bi_bdev = PTR_CACHE(c, &b->key, 0)->bdev;

b->submit_time_us = local_clock_us();
closure_bio_submit(bio, bio->bi_private, PTR_CACHE(c, &b->key, 0));
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 8c8dfdc..724cb7a 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -47,10 +47,10 @@ reread: left = ca->sb.bucket_size - offset;
len = min_t(unsigned, left, PAGE_SECTORS * 8);

bio_reset(bio);
- bio->bi_sector = bucket + offset;
+ bio->bi_iter.bi_sector = bucket + offset;
bio->bi_bdev = ca->bdev;
bio->bi_rw = READ;
- bio->bi_size = len << 9;
+ bio->bi_iter.bi_size = len << 9;

bio->bi_end_io = journal_read_endio;
bio->bi_private = &op->cl;
@@ -438,13 +438,13 @@ static void do_journal_discard(struct cache *ca)
atomic_set(&ja->discard_in_flight, DISCARD_IN_FLIGHT);

bio_init(bio);
- bio->bi_sector = bucket_to_sector(ca->set,
+ bio->bi_iter.bi_sector = bucket_to_sector(ca->set,
ca->sb.d[ja->discard_idx]);
bio->bi_bdev = ca->bdev;
bio->bi_rw = REQ_WRITE|REQ_DISCARD;
bio->bi_max_vecs = 1;
bio->bi_io_vec = bio->bi_inline_vecs;
- bio->bi_size = bucket_bytes(ca);
+ bio->bi_iter.bi_size = bucket_bytes(ca);
bio->bi_end_io = journal_discard_endio;

closure_get(&ca->set->cl);
@@ -615,10 +615,10 @@ static void journal_write_unlocked(struct closure *cl)
atomic_long_add(sectors, &ca->meta_sectors_written);

bio_reset(bio);
- bio->bi_sector = PTR_OFFSET(k, i);
+ bio->bi_iter.bi_sector = PTR_OFFSET(k, i);
bio->bi_bdev = ca->bdev;
bio->bi_rw = REQ_WRITE|REQ_SYNC|REQ_META|REQ_FLUSH;
- bio->bi_size = sectors << 9;
+ bio->bi_iter.bi_size = sectors << 9;

bio->bi_end_io = journal_write_endio;
bio->bi_private = w;
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 23f19fa..3acbcec 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -81,7 +81,7 @@ static void moving_init(struct moving_io *io)
bio_get(bio);
bio_set_prio(bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));

- bio->bi_size = KEY_SIZE(&io->w->key) << 9;
+ bio->bi_iter.bi_size = KEY_SIZE(&io->w->key) << 9;
bio->bi_max_vecs = DIV_ROUND_UP(KEY_SIZE(&io->w->key),
PAGE_SECTORS);
bio->bi_private = &io->s.cl;
@@ -99,7 +99,7 @@ static void write_moving(struct closure *cl)

moving_init(io);

- io->bio.bio.bi_sector = KEY_START(&io->w->key);
+ io->bio.bio.bi_iter.bi_sector = KEY_START(&io->w->key);
s->op.lock = -1;
s->op.write_prio = 1;
s->op.cache_bio = &io->bio.bio;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 8e5c35d..6360df5 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -220,7 +220,7 @@ static void bio_invalidate(struct closure *cl)
struct bio *bio = op->cache_bio;

pr_debug("invalidating %i sectors from %llu",
- bio_sectors(bio), (uint64_t) bio->bi_sector);
+ bio_sectors(bio), (uint64_t) bio->bi_iter.bi_sector);

while (bio_sectors(bio)) {
unsigned len = min(bio_sectors(bio), 1U << 14);
@@ -228,11 +228,11 @@ static void bio_invalidate(struct closure *cl)
if (bch_keylist_realloc(&op->keys, 0, op->c))
goto out;

- bio->bi_sector += len;
- bio->bi_size -= len << 9;
+ bio->bi_iter.bi_sector += len;
+ bio->bi_iter.bi_size -= len << 9;

bch_keylist_add(&op->keys,
- &KEY(op->inode, bio->bi_sector, len));
+ &KEY(op->inode, bio->bi_iter.bi_sector, len));
}

op->insert_data_done = true;
@@ -504,7 +504,7 @@ static void bch_insert_data_loop(struct closure *cl)
k = op->keys.top;
bkey_init(k);
SET_KEY_INODE(k, op->inode);
- SET_KEY_OFFSET(k, bio->bi_sector);
+ SET_KEY_OFFSET(k, bio->bi_iter.bi_sector);

if (!bch_alloc_sectors(k, bio_sectors(bio), s))
goto err;
@@ -529,7 +529,7 @@ static void bch_insert_data_loop(struct closure *cl)
pr_debug("%s", pkey(k));
bch_keylist_push(&op->keys);

- trace_bcache_cache_insert(n, n->bi_sector, n->bi_bdev);
+ trace_bcache_cache_insert(n, n->bi_iter.bi_sector, n->bi_bdev);
n->bi_rw |= REQ_WRITE;
bch_submit_bbio(n, op->c, k, 0);
} while (n != bio);
@@ -773,7 +773,7 @@ static void request_read_error(struct closure *cl)
* device.
*/
pr_debug("recovering at sector %llu",
- (uint64_t) s->orig_bio->bi_sector);
+ (uint64_t) s->orig_bio->bi_iter.bi_sector);

s->error = 0;
do_bio_hook(s);
@@ -802,9 +802,12 @@ static void request_read_done(struct closure *cl)

if (s->op.cache_bio) {
bio_reset(s->op.cache_bio);
- s->op.cache_bio->bi_sector = s->cache_miss->bi_sector;
- s->op.cache_bio->bi_bdev = s->cache_miss->bi_bdev;
- s->op.cache_bio->bi_size = s->cache_bio_sectors << 9;
+ s->op.cache_bio->bi_iter.bi_sector =
+ s->cache_miss->bi_iter.bi_sector;
+ s->op.cache_bio->bi_bdev =
+ s->cache_miss->bi_bdev;
+ s->op.cache_bio->bi_iter.bi_size =
+ s->cache_bio_sectors << 9;
bch_bio_map(s->op.cache_bio, NULL);

bio_copy_data(s->cache_miss, s->op.cache_bio);
@@ -882,9 +885,9 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
if (!s->op.cache_bio)
goto out_submit;

- s->op.cache_bio->bi_sector = miss->bi_sector;
+ s->op.cache_bio->bi_iter.bi_sector = miss->bi_iter.bi_sector;
s->op.cache_bio->bi_bdev = miss->bi_bdev;
- s->op.cache_bio->bi_size = s->cache_bio_sectors << 9;
+ s->op.cache_bio->bi_iter.bi_size = s->cache_bio_sectors << 9;

s->op.cache_bio->bi_end_io = request_endio;
s->op.cache_bio->bi_private = &s->cl;
@@ -950,7 +953,7 @@ static void request_write(struct cached_dev *dc, struct search *s)
struct closure *cl = &s->cl;
struct bio *bio = &s->bio.bio;
struct bkey start, end;
- start = KEY(dc->disk.id, bio->bi_sector, 0);
+ start = KEY(dc->disk.id, bio->bi_iter.bi_sector, 0);
end = KEY(dc->disk.id, bio_end_sector(bio), 0);

bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys, &start, &end);
@@ -1073,8 +1076,8 @@ static void check_should_skip(struct cached_dev *dc, struct search *s)
(bio->bi_rw & REQ_WRITE)))
goto skip;

- if (bio->bi_sector & (c->sb.block_size - 1) ||
- bio_sectors(bio) & (c->sb.block_size - 1)) {
+ if (bio->bi_iter.bi_sector & (c->sb.block_size - 1) ||
+ bio_sectors(bio) & (c->sb.block_size - 1)) {
pr_debug("skipping unaligned io");
goto skip;
}
@@ -1096,8 +1099,9 @@ static void check_should_skip(struct cached_dev *dc, struct search *s)

spin_lock(&dc->io_lock);

- hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
- if (i->last == bio->bi_sector &&
+ hlist_for_each_entry(i, iohash(dc, bio->bi_iter.bi_sector),
+ hash)
+ if (i->last == bio->bi_iter.bi_sector &&
time_before(jiffies, i->jiffies))
goto found;

@@ -1106,8 +1110,8 @@ static void check_should_skip(struct cached_dev *dc, struct search *s)
add_sequential(s->task);
i->sequential = 0;
found:
- if (i->sequential + bio->bi_size > i->sequential)
- i->sequential += bio->bi_size;
+ if (i->sequential + bio->bi_iter.bi_size > i->sequential)
+ i->sequential += bio->bi_iter.bi_size;

i->last = bio_end_sector(bio);
i->jiffies = jiffies + msecs_to_jiffies(5000);
@@ -1119,7 +1123,7 @@ found:

spin_unlock(&dc->io_lock);
} else {
- s->task->sequential_io = bio->bi_size;
+ s->task->sequential_io = bio->bi_iter.bi_size;

add_sequential(s->task);
}
@@ -1152,7 +1156,7 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
part_stat_unlock();

bio->bi_bdev = dc->bdev;
- bio->bi_sector += dc->sb.data_offset;
+ bio->bi_iter.bi_sector += dc->sb.data_offset;

if (cached_dev_get(dc)) {
s = search_alloc(bio, d);
@@ -1235,9 +1239,9 @@ static int flash_dev_cache_miss(struct btree *b, struct search *s,
sectors -= j;
}

- bio_advance(bio, min(sectors << 9, bio->bi_size));
+ bio_advance(bio, min(sectors << 9, bio->bi_iter.bi_size));

- if (!bio->bi_size)
+ if (!bio->bi_iter.bi_size)
s->op.lookup_done = true;

return 0;
@@ -1265,7 +1269,7 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
closure_call(&s->op.cl, btree_read_async, NULL, cl);
} else if (bio_has_data(bio) || s->op.skip) {
bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys,
- &KEY(d->id, bio->bi_sector, 0),
+ &KEY(d->id, bio->bi_iter.bi_sector, 0),
&KEY(d->id, bio_end_sector(bio), 0));

s->writeback = true;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 7f7ea78..668b50e 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -237,9 +237,9 @@ static void __write_super(struct cache_sb *sb, struct bio *bio)
struct cache_sb *out = page_address(bio->bi_io_vec[0].bv_page);
unsigned i;

- bio->bi_sector = SB_SECTOR;
- bio->bi_rw = REQ_SYNC|REQ_META;
- bio->bi_size = SB_SIZE;
+ bio->bi_iter.bi_sector = SB_SECTOR;
+ bio->bi_rw = REQ_SYNC|REQ_META;
+ bio->bi_iter.bi_size = SB_SIZE;
bch_bio_map(bio, NULL);

out->offset = cpu_to_le64(sb->offset);
@@ -350,7 +350,7 @@ static void uuid_io(struct cache_set *c, unsigned long rw,
struct bio *bio = bch_bbio_alloc(c);

bio->bi_rw = REQ_SYNC|REQ_META|rw;
- bio->bi_size = KEY_SIZE(k) << 9;
+ bio->bi_iter.bi_size = KEY_SIZE(k) << 9;

bio->bi_end_io = uuid_endio;
bio->bi_private = cl;
@@ -506,10 +506,10 @@ static void prio_io(struct cache *ca, uint64_t bucket, unsigned long rw)

closure_init_stack(cl);

- bio->bi_sector = bucket * ca->sb.bucket_size;
- bio->bi_bdev = ca->bdev;
- bio->bi_rw = REQ_SYNC|REQ_META|rw;
- bio->bi_size = bucket_bytes(ca);
+ bio->bi_iter.bi_sector = bucket * ca->sb.bucket_size;
+ bio->bi_bdev = ca->bdev;
+ bio->bi_rw = REQ_SYNC|REQ_META|rw;
+ bio->bi_iter.bi_size = bucket_bytes(ca);

bio->bi_end_io = prio_endio;
bio->bi_private = ca;
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index 98eb811..b995d5a 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -203,10 +203,10 @@ unsigned bch_next_delay(struct ratelimit *d, uint64_t done)

void bch_bio_map(struct bio *bio, void *base)
{
- size_t size = bio->bi_size;
+ size_t size = bio->bi_iter.bi_size;
struct bio_vec *bv = bio->bi_io_vec;

- BUG_ON(!bio->bi_size);
+ BUG_ON(!bio->bi_iter.bi_size);
BUG_ON(bio->bi_vcnt);

bv->bv_offset = base ? ((unsigned long) base) % PAGE_SIZE : 0;
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 8a3311a..61bc071 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -114,7 +114,7 @@ static void dirty_init(struct keybuf_key *w)
if (!io->dc->writeback_percent)
bio_set_prio(bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));

- bio->bi_size = KEY_SIZE(&w->key) << 9;
+ bio->bi_iter.bi_size = KEY_SIZE(&w->key) << 9;
bio->bi_max_vecs = DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS);
bio->bi_private = w;
bio->bi_io_vec = bio->bi_inline_vecs;
@@ -272,7 +272,7 @@ static void write_dirty(struct closure *cl)

dirty_init(w);
io->bio.bi_rw = WRITE;
- io->bio.bi_sector = KEY_START(&w->key);
+ io->bio.bi_iter.bi_sector = KEY_START(&w->key);
io->bio.bi_bdev = io->dc->bdev;
io->bio.bi_end_io = dirty_endio;

@@ -344,7 +344,7 @@ static void read_dirty(struct closure *cl)
io->dc = dc;

dirty_init(w);
- io->bio.bi_sector = PTR_OFFSET(&w->key, 0);
+ io->bio.bi_iter.bi_sector = PTR_OFFSET(&w->key, 0);
io->bio.bi_bdev = PTR_CACHE(dc->disk.c,
&w->key, 0)->bdev;
io->bio.bi_rw = READ;
diff --git a/drivers/md/dm-bio-record.h b/drivers/md/dm-bio-record.h
index 3a8cfa2..5ace48e 100644
--- a/drivers/md/dm-bio-record.h
+++ b/drivers/md/dm-bio-record.h
@@ -40,10 +40,10 @@ static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio)
{
unsigned i;

- bd->bi_sector = bio->bi_sector;
+ bd->bi_sector = bio->bi_iter.bi_sector;
bd->bi_bdev = bio->bi_bdev;
- bd->bi_size = bio->bi_size;
- bd->bi_idx = bio->bi_idx;
+ bd->bi_size = bio->bi_iter.bi_size;
+ bd->bi_idx = bio->bi_iter.bi_idx;
bd->bi_flags = bio->bi_flags;

for (i = 0; i < bio->bi_vcnt; i++) {
@@ -56,10 +56,10 @@ static inline void dm_bio_restore(struct dm_bio_details *bd, struct bio *bio)
{
unsigned i;

- bio->bi_sector = bd->bi_sector;
+ bio->bi_iter.bi_sector = bd->bi_sector;
bio->bi_bdev = bd->bi_bdev;
- bio->bi_size = bd->bi_size;
- bio->bi_idx = bd->bi_idx;
+ bio->bi_iter.bi_size = bd->bi_size;
+ bio->bi_iter.bi_idx = bd->bi_idx;
bio->bi_flags = bd->bi_flags;

for (i = 0; i < bio->bi_vcnt; i++) {
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 0387e05..bb6d1d3 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -537,7 +537,7 @@ static void use_inline_bio(struct dm_buffer *b, int rw, sector_t block,
bio_init(&b->bio);
b->bio.bi_io_vec = b->bio_vec;
b->bio.bi_max_vecs = DM_BUFIO_INLINE_VECS;
- b->bio.bi_sector = block << b->c->sectors_per_block_bits;
+ b->bio.bi_iter.bi_sector = block << b->c->sectors_per_block_bits;
b->bio.bi_bdev = b->c->bdev;
b->bio.bi_end_io = end_io;

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index dc112a7..6e8aedb 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -85,7 +85,7 @@ static enum io_pattern iot_pattern(struct io_tracker *t)

static void iot_update_stats(struct io_tracker *t, struct bio *bio)
{
- if (bio->bi_sector == from_oblock(t->last_end_oblock) + 1)
+ if (bio->bi_iter.bi_sector == from_oblock(t->last_end_oblock) + 1)
t->nr_seq_samples++;
else {
/*
@@ -100,7 +100,7 @@ static void iot_update_stats(struct io_tracker *t, struct bio *bio)
t->nr_rand_samples++;
}

- t->last_end_oblock = to_oblock(bio->bi_sector + bio_sectors(bio) - 1);
+ t->last_end_oblock = to_oblock(bio_end_sector(bio) - 1);
}

static void iot_check_for_pattern_switch(struct io_tracker *t)
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index df44b60..59372e0 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -561,14 +561,16 @@ static void remap_to_origin(struct cache *cache, struct bio *bio)
static void remap_to_cache(struct cache *cache, struct bio *bio,
dm_cblock_t cblock)
{
- sector_t bi_sector = bio->bi_sector;
+ sector_t bi_sector = bio->bi_iter.bi_sector;

bio->bi_bdev = cache->cache_dev->bdev;
if (!block_size_is_power_of_two(cache))
- bio->bi_sector = (from_cblock(cblock) * cache->sectors_per_block) +
+ bio->bi_iter.bi_sector = (from_cblock(cblock) *
+ cache->sectors_per_block) +
sector_div(bi_sector, cache->sectors_per_block);
else
- bio->bi_sector = (from_cblock(cblock) << cache->sectors_per_block_shift) |
+ bio->bi_iter.bi_sector = (from_cblock(cblock) <<
+ cache->sectors_per_block_shift) |
(bi_sector & (cache->sectors_per_block - 1));
}

@@ -608,7 +610,7 @@ static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,

static dm_oblock_t get_bio_block(struct cache *cache, struct bio *bio)
{
- sector_t block_nr = bio->bi_sector;
+ sector_t block_nr = bio->bi_iter.bi_sector;

if (!block_size_is_power_of_two(cache))
(void) sector_div(block_nr, cache->sectors_per_block);
@@ -1060,7 +1062,7 @@ static void process_flush_bio(struct cache *cache, struct bio *bio)
size_t pb_data_size = get_per_bio_data_size(cache);
struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);

- BUG_ON(bio->bi_size);
+ BUG_ON(bio->bi_iter.bi_size);
if (!pb->req_nr)
remap_to_origin(cache, bio);
else
@@ -1083,9 +1085,9 @@ static void process_flush_bio(struct cache *cache, struct bio *bio)
*/
static void process_discard_bio(struct cache *cache, struct bio *bio)
{
- dm_block_t start_block = dm_sector_div_up(bio->bi_sector,
+ dm_block_t start_block = dm_sector_div_up(bio->bi_iter.bi_sector,
cache->discard_block_size);
- dm_block_t end_block = bio->bi_sector + bio_sectors(bio);
+ dm_block_t end_block = bio_end_sector(bio);
dm_block_t b;

end_block = block_div(end_block, cache->discard_block_size);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 6d2d41a..fca3bba 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -652,8 +652,8 @@ static void crypt_convert_init(struct crypt_config *cc,
ctx->bio_out = bio_out;
ctx->offset_in = 0;
ctx->offset_out = 0;
- ctx->idx_in = bio_in ? bio_in->bi_idx : 0;
- ctx->idx_out = bio_out ? bio_out->bi_idx : 0;
+ ctx->idx_in = bio_in ? bio_in->bi_iter.bi_idx : 0;
+ ctx->idx_out = bio_out ? bio_out->bi_iter.bi_idx : 0;
ctx->cc_sector = sector + cc->iv_offset;
init_completion(&ctx->restart);
}
@@ -845,7 +845,7 @@ static struct bio *crypt_alloc_buffer(struct dm_crypt_io *io, unsigned size,
size -= len;
}

- if (!clone->bi_size) {
+ if (!clone->bi_iter.bi_size) {
bio_put(clone);
return NULL;
}
@@ -985,7 +985,7 @@ static int kcryptd_io_read(struct dm_crypt_io *io, gfp_t gfp)
crypt_inc_pending(io);

clone_init(io, clone);
- clone->bi_sector = cc->start + io->sector;
+ clone->bi_iter.bi_sector = cc->start + io->sector;

generic_make_request(clone);
return 0;
@@ -1033,7 +1033,7 @@ static void kcryptd_crypt_write_io_submit(struct dm_crypt_io *io, int async)
/* crypt_convert should have filled the clone bio */
BUG_ON(io->ctx.idx_out < clone->bi_vcnt);

- clone->bi_sector = cc->start + io->sector;
+ clone->bi_iter.bi_sector = cc->start + io->sector;

if (async)
kcryptd_queue_io(io);
@@ -1048,7 +1048,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
struct dm_crypt_io *new_io;
int crypt_finished;
unsigned out_of_pages = 0;
- unsigned remaining = io->base_bio->bi_size;
+ unsigned remaining = io->base_bio->bi_iter.bi_size;
sector_t sector = io->sector;
int r;

@@ -1072,7 +1072,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
io->ctx.bio_out = clone;
io->ctx.idx_out = 0;

- remaining -= clone->bi_size;
+ remaining -= clone->bi_iter.bi_size;
sector += bio_sectors(clone);

crypt_inc_pending(io);
@@ -1687,11 +1687,13 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
if (unlikely(bio->bi_rw & (REQ_FLUSH | REQ_DISCARD))) {
bio->bi_bdev = cc->dev->bdev;
if (bio_sectors(bio))
- bio->bi_sector = cc->start + dm_target_offset(ti, bio->bi_sector);
+ bio->bi_iter.bi_sector = cc->start +
+ dm_target_offset(ti, bio->bi_iter.bi_sector);
return DM_MAPIO_REMAPPED;
}

- io = crypt_io_alloc(cc, bio, dm_target_offset(ti, bio->bi_sector));
+ io = crypt_io_alloc(cc, bio,
+ dm_target_offset(ti, bio->bi_iter.bi_sector));

if (bio_data_dir(io->base_bio) == READ) {
if (kcryptd_io_read(io, GFP_NOWAIT))
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 496d5f3..84c8601 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -281,14 +281,15 @@ static int delay_map(struct dm_target *ti, struct bio *bio)
if ((bio_data_dir(bio) == WRITE) && (dc->dev_write)) {
bio->bi_bdev = dc->dev_write->bdev;
if (bio_sectors(bio))
- bio->bi_sector = dc->start_write +
- dm_target_offset(ti, bio->bi_sector);
+ bio->bi_iter.bi_sector = dc->start_write +
+ dm_target_offset(ti, bio->bi_iter.bi_sector);

return delay_bio(dc, dc->write_delay, bio);
}

bio->bi_bdev = dc->dev_read->bdev;
- bio->bi_sector = dc->start_read + dm_target_offset(ti, bio->bi_sector);
+ bio->bi_iter.bi_sector = dc->start_read +
+ dm_target_offset(ti, bio->bi_iter.bi_sector);

return delay_bio(dc, dc->read_delay, bio);
}
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 7fcf21c..b8785cd 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -248,7 +248,8 @@ static void flakey_map_bio(struct dm_target *ti, struct bio *bio)

bio->bi_bdev = fc->dev->bdev;
if (bio_sectors(bio))
- bio->bi_sector = flakey_map_sector(ti, bio->bi_sector);
+ bio->bi_iter.bi_sector =
+ flakey_map_sector(ti, bio->bi_iter.bi_sector);
}

static void corrupt_bio_data(struct bio *bio, struct flakey_c *fc)
@@ -265,8 +266,8 @@ static void corrupt_bio_data(struct bio *bio, struct flakey_c *fc)
DMDEBUG("Corrupting data bio=%p by writing %u to byte %u "
"(rw=%c bi_rw=%lu bi_sector=%llu cur_bytes=%u)\n",
bio, fc->corrupt_bio_value, fc->corrupt_bio_byte,
- (bio_data_dir(bio) == WRITE) ? 'w' : 'r',
- bio->bi_rw, (unsigned long long)bio->bi_sector, bio_bytes);
+ (bio_data_dir(bio) == WRITE) ? 'w' : 'r', bio->bi_rw,
+ (unsigned long long)bio->bi_iter.bi_sector, bio_bytes);
}
}

diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index ea49834..a6de5c9 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -305,14 +305,15 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
dm_sector_div_up(remaining, (PAGE_SIZE >> SECTOR_SHIFT)));

bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, io->client->bios);
- bio->bi_sector = where->sector + (where->count - remaining);
+ bio->bi_iter.bi_sector = where->sector +
+ (where->count - remaining);
bio->bi_bdev = where->bdev;
bio->bi_end_io = endio;
store_io_and_region_in_bio(bio, io, region);

if (rw & REQ_DISCARD) {
num_sectors = min_t(sector_t, q->limits.max_discard_sectors, remaining);
- bio->bi_size = num_sectors << SECTOR_SHIFT;
+ bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;
remaining -= num_sectors;
} else if (rw & REQ_WRITE_SAME) {
/*
@@ -321,7 +322,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
dp->get_page(dp, &page, &len, &offset);
bio_add_page(bio, page, logical_block_size, offset);
num_sectors = min_t(sector_t, q->limits.max_write_same_sectors, remaining);
- bio->bi_size = num_sectors << SECTOR_SHIFT;
+ bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;

offset = 0;
remaining -= num_sectors;
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 4f99d26..53e848c 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -85,7 +85,8 @@ static void linear_map_bio(struct dm_target *ti, struct bio *bio)

bio->bi_bdev = lc->dev->bdev;
if (bio_sectors(bio))
- bio->bi_sector = linear_map_sector(ti, bio->bi_sector);
+ bio->bi_iter.bi_sector =
+ linear_map_sector(ti, bio->bi_iter.bi_sector);
}

static int linear_map(struct dm_target *ti, struct bio *bio)
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 699b5be..e3efb91 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -432,7 +432,7 @@ static int mirror_available(struct mirror_set *ms, struct bio *bio)
region_t region = dm_rh_bio_to_region(ms->rh, bio);

if (log->type->in_sync(log, region, 0))
- return choose_mirror(ms, bio->bi_sector) ? 1 : 0;
+ return choose_mirror(ms, bio->bi_iter.bi_sector) ? 1 : 0;

return 0;
}
@@ -442,15 +442,15 @@ static int mirror_available(struct mirror_set *ms, struct bio *bio)
*/
static sector_t map_sector(struct mirror *m, struct bio *bio)
{
- if (unlikely(!bio->bi_size))
+ if (unlikely(!bio->bi_iter.bi_size))
return 0;
- return m->offset + dm_target_offset(m->ms->ti, bio->bi_sector);
+ return m->offset + dm_target_offset(m->ms->ti, bio->bi_iter.bi_sector);
}

static void map_bio(struct mirror *m, struct bio *bio)
{
bio->bi_bdev = m->dev->bdev;
- bio->bi_sector = map_sector(m, bio);
+ bio->bi_iter.bi_sector = map_sector(m, bio);
}

static void map_region(struct dm_io_region *io, struct mirror *m,
@@ -527,7 +527,7 @@ static void read_async_bio(struct mirror *m, struct bio *bio)
struct dm_io_request io_req = {
.bi_rw = READ,
.mem.type = DM_IO_BVEC,
- .mem.ptr.bvec = bio->bi_io_vec + bio->bi_idx,
+ .mem.ptr.bvec = bio->bi_io_vec + bio->bi_iter.bi_idx,
.notify.fn = read_callback,
.notify.context = bio,
.client = m->ms->io_client,
@@ -559,7 +559,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
* We can only read balance if the region is in sync.
*/
if (likely(region_in_sync(ms, region, 1)))
- m = choose_mirror(ms, bio->bi_sector);
+ m = choose_mirror(ms, bio->bi_iter.bi_sector);
else if (m && atomic_read(&m->error_count))
m = NULL;

@@ -630,7 +630,7 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
struct dm_io_request io_req = {
.bi_rw = WRITE | (bio->bi_rw & WRITE_FLUSH_FUA),
.mem.type = DM_IO_BVEC,
- .mem.ptr.bvec = bio->bi_io_vec + bio->bi_idx,
+ .mem.ptr.bvec = bio->bi_io_vec + bio->bi_iter.bi_idx,
.notify.fn = write_callback,
.notify.context = bio,
.client = ms->io_client,
@@ -1182,7 +1182,7 @@ static int mirror_map(struct dm_target *ti, struct bio *bio)
* The region is in-sync and we can perform reads directly.
* Store enough information so we can retry if it fails.
*/
- m = choose_mirror(ms, bio->bi_sector);
+ m = choose_mirror(ms, bio->bi_iter.bi_sector);
if (unlikely(!m))
return -EIO;

diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index 69732e0..b929fd5 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -126,7 +126,8 @@ EXPORT_SYMBOL_GPL(dm_rh_region_to_sector);

region_t dm_rh_bio_to_region(struct dm_region_hash *rh, struct bio *bio)
{
- return dm_rh_sector_to_region(rh, bio->bi_sector - rh->target_begin);
+ return dm_rh_sector_to_region(rh, bio->bi_iter.bi_sector -
+ rh->target_begin);
}
EXPORT_SYMBOL_GPL(dm_rh_bio_to_region);

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index c434e5a..a1df777 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1563,10 +1563,10 @@ static void remap_exception(struct dm_snapshot *s, struct dm_exception *e,
struct bio *bio, chunk_t chunk)
{
bio->bi_bdev = s->cow->bdev;
- bio->bi_sector = chunk_to_sector(s->store,
+ bio->bi_iter.bi_sector = chunk_to_sector(s->store,
dm_chunk_number(e->new_chunk) +
(chunk - e->old_chunk)) +
- (bio->bi_sector &
+ (bio->bi_iter.bi_sector &
s->store->chunk_mask);
}

@@ -1585,7 +1585,7 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
return DM_MAPIO_REMAPPED;
}

- chunk = sector_to_chunk(s->store, bio->bi_sector);
+ chunk = sector_to_chunk(s->store, bio->bi_iter.bi_sector);

/* Full snapshots are not usable */
/* To get here the table must be live so s->active is always set. */
@@ -1646,7 +1646,8 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
r = DM_MAPIO_SUBMITTED;

if (!pe->started &&
- bio->bi_size == (s->store->chunk_size << SECTOR_SHIFT)) {
+ bio->bi_iter.bi_size ==
+ (s->store->chunk_size << SECTOR_SHIFT)) {
pe->started = 1;
up_write(&s->lock);
start_full_bio(pe, bio);
@@ -1702,7 +1703,7 @@ static int snapshot_merge_map(struct dm_target *ti, struct bio *bio)
return DM_MAPIO_REMAPPED;
}

- chunk = sector_to_chunk(s->store, bio->bi_sector);
+ chunk = sector_to_chunk(s->store, bio->bi_iter.bi_sector);

down_write(&s->lock);

@@ -2039,7 +2040,7 @@ static int do_origin(struct dm_dev *origin, struct bio *bio)
down_read(&_origins_lock);
o = __lookup_origin(origin->bdev);
if (o)
- r = __origin_write(&o->snapshots, bio->bi_sector, bio);
+ r = __origin_write(&o->snapshots, bio->bi_iter.bi_sector, bio);
up_read(&_origins_lock);

return r;
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index d907ca6..8045b09 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -258,13 +258,15 @@ static int stripe_map_range(struct stripe_c *sc, struct bio *bio,
{
sector_t begin, end;

- stripe_map_range_sector(sc, bio->bi_sector, target_stripe, &begin);
+ stripe_map_range_sector(sc, bio->bi_iter.bi_sector,
+ target_stripe, &begin);
stripe_map_range_sector(sc, bio_end_sector(bio),
target_stripe, &end);
if (begin < end) {
bio->bi_bdev = sc->stripe[target_stripe].dev->bdev;
- bio->bi_sector = begin + sc->stripe[target_stripe].physical_start;
- bio->bi_size = to_bytes(end - begin);
+ bio->bi_iter.bi_sector = begin +
+ sc->stripe[target_stripe].physical_start;
+ bio->bi_iter.bi_size = to_bytes(end - begin);
return DM_MAPIO_REMAPPED;
} else {
/* The range doesn't map to the target stripe */
@@ -292,9 +294,10 @@ static int stripe_map(struct dm_target *ti, struct bio *bio)
return stripe_map_range(sc, bio, target_bio_nr);
}

- stripe_map_sector(sc, bio->bi_sector, &stripe, &bio->bi_sector);
+ stripe_map_sector(sc, bio->bi_iter.bi_sector,
+ &stripe, &bio->bi_iter.bi_sector);

- bio->bi_sector += sc->stripe[stripe].physical_start;
+ bio->bi_iter.bi_sector += sc->stripe[stripe].physical_start;
bio->bi_bdev = sc->stripe[stripe].dev->bdev;

return DM_MAPIO_REMAPPED;
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 88f2f80..2e2212c 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -413,7 +413,7 @@ static bool block_size_is_power_of_two(struct pool *pool)
static dm_block_t get_bio_block(struct thin_c *tc, struct bio *bio)
{
struct pool *pool = tc->pool;
- sector_t block_nr = bio->bi_sector;
+ sector_t block_nr = bio->bi_iter.bi_sector;

if (block_size_is_power_of_two(pool))
block_nr >>= pool->sectors_per_block_shift;
@@ -426,14 +426,15 @@ static dm_block_t get_bio_block(struct thin_c *tc, struct bio *bio)
static void remap(struct thin_c *tc, struct bio *bio, dm_block_t block)
{
struct pool *pool = tc->pool;
- sector_t bi_sector = bio->bi_sector;
+ sector_t bi_sector = bio->bi_iter.bi_sector;

bio->bi_bdev = tc->pool_dev->bdev;
if (block_size_is_power_of_two(pool))
- bio->bi_sector = (block << pool->sectors_per_block_shift) |
- (bi_sector & (pool->sectors_per_block - 1));
+ bio->bi_iter.bi_sector =
+ (block << pool->sectors_per_block_shift) |
+ (bi_sector & (pool->sectors_per_block - 1));
else
- bio->bi_sector = (block * pool->sectors_per_block) +
+ bio->bi_iter.bi_sector = (block * pool->sectors_per_block) +
sector_div(bi_sector, pool->sectors_per_block);
}

@@ -721,7 +722,8 @@ static void process_prepared(struct pool *pool, struct list_head *head,
*/
static int io_overlaps_block(struct pool *pool, struct bio *bio)
{
- return bio->bi_size == (pool->sectors_per_block << SECTOR_SHIFT);
+ return bio->bi_iter.bi_size ==
+ (pool->sectors_per_block << SECTOR_SHIFT);
}

static int io_overwrites_block(struct pool *pool, struct bio *bio)
@@ -1121,7 +1123,7 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
if (bio_detain(pool, &key, bio, &cell))
return;

- if (bio_data_dir(bio) == WRITE && bio->bi_size)
+ if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size)
break_sharing(tc, bio, block, &key, lookup_result, cell);
else {
struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
@@ -1144,7 +1146,7 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
/*
* Remap empty bios (flushes) immediately, without provisioning.
*/
- if (!bio->bi_size) {
+ if (!bio->bi_iter.bi_size) {
inc_all_io_entry(pool, bio);
cell_defer_no_holder(tc, cell);

@@ -1244,7 +1246,8 @@ static void process_bio_read_only(struct thin_c *tc, struct bio *bio)
r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
switch (r) {
case 0:
- if (lookup_result.shared && (rw == WRITE) && bio->bi_size)
+ if (lookup_result.shared &&
+ (rw == WRITE) && bio->bi_iter.bi_size)
bio_io_error(bio);
else {
inc_all_io_entry(tc->pool, bio);
@@ -2827,7 +2830,7 @@ out_unlock:

static int thin_map(struct dm_target *ti, struct bio *bio)
{
- bio->bi_sector = dm_target_offset(ti, bio->bi_sector);
+ bio->bi_iter.bi_sector = dm_target_offset(ti, bio->bi_iter.bi_sector);

return thin_bio_map(ti, bio);
}
diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c
index b948fd8..90ce9e0 100644
--- a/drivers/md/dm-verity.c
+++ b/drivers/md/dm-verity.c
@@ -493,9 +493,9 @@ static int verity_map(struct dm_target *ti, struct bio *bio)
struct dm_verity_io *io;

bio->bi_bdev = v->data_dev->bdev;
- bio->bi_sector = verity_map_sector(v, bio->bi_sector);
+ bio->bi_iter.bi_sector = verity_map_sector(v, bio->bi_iter.bi_sector);

- if (((unsigned)bio->bi_sector | bio_sectors(bio)) &
+ if (((unsigned)bio->bi_iter.bi_sector | bio_sectors(bio)) &
((1 << (v->data_dev_block_bits - SECTOR_SHIFT)) - 1)) {
DMERR_LIMIT("unaligned io");
return -EIO;
@@ -514,8 +514,9 @@ static int verity_map(struct dm_target *ti, struct bio *bio)
io->v = v;
io->orig_bi_end_io = bio->bi_end_io;
io->orig_bi_private = bio->bi_private;
- io->block = bio->bi_sector >> (v->data_dev_block_bits - SECTOR_SHIFT);
- io->n_blocks = bio->bi_size >> v->data_dev_block_bits;
+ io->block = bio->bi_iter.bi_sector >>
+ (v->data_dev_block_bits - SECTOR_SHIFT);
+ io->n_blocks = bio->bi_iter.bi_size >> v->data_dev_block_bits;

bio->bi_end_io = verity_end_io;
bio->bi_private = io;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d5370a9..d67c6a9 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -600,7 +600,7 @@ static void dec_pending(struct dm_io *io, int error)
if (io_error == DM_ENDIO_REQUEUE)
return;

- if ((bio->bi_rw & REQ_FLUSH) && bio->bi_size) {
+ if ((bio->bi_rw & REQ_FLUSH) && bio->bi_iter.bi_size) {
/*
* Preflush done for flush with data, reissue
* without REQ_FLUSH.
@@ -655,7 +655,7 @@ static void end_clone_bio(struct bio *clone, int error)
struct dm_rq_clone_bio_info *info = clone->bi_private;
struct dm_rq_target_io *tio = info->tio;
struct bio *bio = info->orig;
- unsigned int nr_bytes = info->orig->bi_size;
+ unsigned int nr_bytes = info->orig->bi_iter.bi_size;

bio_put(clone);

@@ -986,7 +986,7 @@ static void __map_bio(struct dm_target_io *tio)
* this io.
*/
atomic_inc(&tio->io->io_count);
- sector = clone->bi_sector;
+ sector = clone->bi_iter.bi_sector;
r = ti->type->map(ti, clone);
if (r == DM_MAPIO_REMAPPED) {
/* the bio has been remapped so dispatch it */
@@ -1018,13 +1018,13 @@ struct clone_info {

static void bio_setup_sector(struct bio *bio, sector_t sector, sector_t len)
{
- bio->bi_sector = sector;
- bio->bi_size = to_bytes(len);
+ bio->bi_iter.bi_sector = sector;
+ bio->bi_iter.bi_size = to_bytes(len);
}

static void bio_setup_bv(struct bio *bio, unsigned short idx, unsigned short bv_count)
{
- bio->bi_idx = idx;
+ bio->bi_iter.bi_idx = idx;
bio->bi_vcnt = idx + bv_count;
bio->bi_flags &= ~(1 << BIO_SEG_VALID);
}
@@ -1060,7 +1060,7 @@ static void clone_split_bio(struct dm_target_io *tio, struct bio *bio,
clone->bi_rw = bio->bi_rw;
clone->bi_vcnt = 1;
clone->bi_io_vec->bv_offset = offset;
- clone->bi_io_vec->bv_len = clone->bi_size;
+ clone->bi_io_vec->bv_len = clone->bi_iter.bi_size;
clone->bi_flags |= 1 << BIO_CLONED;

clone_bio_integrity(bio, clone, idx, len, offset, 1);
@@ -1080,7 +1080,8 @@ static void clone_bio(struct dm_target_io *tio, struct bio *bio,
bio_setup_sector(clone, sector, len);
bio_setup_bv(clone, idx, bv_count);

- if (idx != bio->bi_idx || clone->bi_size < bio->bi_size)
+ if (idx != bio->bi_iter.bi_idx ||
+ clone->bi_iter.bi_size < bio->bi_iter.bi_size)
trim = 1;
clone_bio_integrity(bio, clone, idx, len, 0, trim);
}
@@ -1367,8 +1368,8 @@ static void __split_and_process_bio(struct mapped_device *md, struct bio *bio)
ci.io->bio = bio;
ci.io->md = md;
spin_lock_init(&ci.io->endio_lock);
- ci.sector = bio->bi_sector;
- ci.idx = bio->bi_idx;
+ ci.sector = bio->bi_iter.bi_sector;
+ ci.idx = bio->bi_iter.bi_idx;

start_io_acct(ci.io);

diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 3193aef..e8b4574 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -74,8 +74,8 @@ static void faulty_fail(struct bio *bio, int error)
{
struct bio *b = bio->bi_private;

- b->bi_size = bio->bi_size;
- b->bi_sector = bio->bi_sector;
+ b->bi_iter.bi_size = bio->bi_iter.bi_size;
+ b->bi_iter.bi_sector = bio->bi_iter.bi_sector;

bio_put(bio);

@@ -185,26 +185,31 @@ static void make_request(struct mddev *mddev, struct bio *bio)
return;
}

- if (check_sector(conf, bio->bi_sector, bio_end_sector(bio), WRITE))
+ if (check_sector(conf, bio->bi_iter.bi_sector,
+ bio_end_sector(bio), WRITE))
failit = 1;
if (check_mode(conf, WritePersistent)) {
- add_sector(conf, bio->bi_sector, WritePersistent);
+ add_sector(conf, bio->bi_iter.bi_sector,
+ WritePersistent);
failit = 1;
}
if (check_mode(conf, WriteTransient))
failit = 1;
} else {
/* read request */
- if (check_sector(conf, bio->bi_sector, bio_end_sector(bio), READ))
+ if (check_sector(conf, bio->bi_iter.bi_sector,
+ bio_end_sector(bio), READ))
failit = 1;
if (check_mode(conf, ReadTransient))
failit = 1;
if (check_mode(conf, ReadPersistent)) {
- add_sector(conf, bio->bi_sector, ReadPersistent);
+ add_sector(conf, bio->bi_iter.bi_sector,
+ ReadPersistent);
failit = 1;
}
if (check_mode(conf, ReadFixable)) {
- add_sector(conf, bio->bi_sector, ReadFixable);
+ add_sector(conf, bio->bi_iter.bi_sector,
+ ReadFixable);
failit = 1;
}
}
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index f03fabd..fb3b0d0 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -297,19 +297,19 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio)
}

rcu_read_lock();
- tmp_dev = which_dev(mddev, bio->bi_sector);
+ tmp_dev = which_dev(mddev, bio->bi_iter.bi_sector);
start_sector = tmp_dev->end_sector - tmp_dev->rdev->sectors;

- if (unlikely(bio->bi_sector >= (tmp_dev->end_sector)
- || (bio->bi_sector < start_sector))) {
+ if (unlikely(bio->bi_iter.bi_sector >= (tmp_dev->end_sector)
+ || (bio->bi_iter.bi_sector < start_sector))) {
char b[BDEVNAME_SIZE];

printk(KERN_ERR
"md/linear:%s: make_request: Sector %llu out of bounds on "
"dev %s: %llu sectors, offset %llu\n",
mdname(mddev),
- (unsigned long long)bio->bi_sector,
+ (unsigned long long)bio->bi_iter.bi_sector,
bdevname(tmp_dev->rdev->bdev, b),
(unsigned long long)tmp_dev->rdev->sectors,
(unsigned long long)start_sector);
@@ -326,7 +326,7 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio)

rcu_read_unlock();

- bp = bio_split(bio, end_sector - bio->bi_sector);
+ bp = bio_split(bio, end_sector - bio->bi_iter.bi_sector);

linear_make_request(mddev, &bp->bio1);
linear_make_request(mddev, &bp->bio2);
@@ -335,7 +335,7 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio)
}

bio->bi_bdev = tmp_dev->rdev->bdev;
- bio->bi_sector = bio->bi_sector - start_sector
+ bio->bi_iter.bi_sector = bio->bi_iter.bi_sector - start_sector
+ tmp_dev->rdev->data_offset;
rcu_read_unlock();

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 681d109..38464ce 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -194,21 +194,22 @@ void md_trim_bio(struct bio *bio, int offset, int size)
int sofar = 0;

size <<= 9;
- if (offset == 0 && size == bio->bi_size)
+ if (offset == 0 && size == bio->bi_iter.bi_size)
return;

clear_bit(BIO_SEG_VALID, &bio->bi_flags);

bio_advance(bio, offset << 9);

- bio->bi_size = size;
+ bio->bi_iter.bi_size = size;

/* avoid any complications with bi_idx being non-zero*/
- if (bio->bi_idx) {
- memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_idx,
- (bio->bi_vcnt - bio->bi_idx) * sizeof(struct bio_vec));
- bio->bi_vcnt -= bio->bi_idx;
- bio->bi_idx = 0;
+ if (bio->bi_iter.bi_idx) {
+ memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_iter.bi_idx,
+ (bio->bi_vcnt - bio->bi_iter.bi_idx) *
+ sizeof(struct bio_vec));
+ bio->bi_vcnt -= bio->bi_iter.bi_idx;
+ bio->bi_iter.bi_idx = 0;
}
/* Make sure vcnt and last bv are not too big */
bio_for_each_segment(bvec, bio, i) {
@@ -433,7 +434,7 @@ static void md_submit_flush_data(struct work_struct *ws)
struct mddev *mddev = container_of(ws, struct mddev, flush_work);
struct bio *bio = mddev->flush_bio;

- if (bio->bi_size == 0)
+ if (bio->bi_iter.bi_size == 0)
/* an empty barrier - all done */
bio_endio(bio, 0);
else {
@@ -785,7 +786,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, mddev);

bio->bi_bdev = rdev->meta_bdev ? rdev->meta_bdev : rdev->bdev;
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio_add_page(bio, page, size, 0);
bio->bi_private = rdev;
bio->bi_end_io = super_written;
@@ -824,13 +825,13 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
bio->bi_bdev = (metadata_op && rdev->meta_bdev) ?
rdev->meta_bdev : rdev->bdev;
if (metadata_op)
- bio->bi_sector = sector + rdev->sb_start;
+ bio->bi_iter.bi_sector = sector + rdev->sb_start;
else if (rdev->mddev->reshape_position != MaxSector &&
(rdev->mddev->reshape_backwards ==
(sector >= rdev->mddev->reshape_position)))
- bio->bi_sector = sector + rdev->new_data_offset;
+ bio->bi_iter.bi_sector = sector + rdev->new_data_offset;
else
- bio->bi_sector = sector + rdev->data_offset;
+ bio->bi_iter.bi_sector = sector + rdev->data_offset;
bio_add_page(bio, page, size, 0);
init_completion(&event);
bio->bi_private = &event;
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 1642eae..849ad39 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -100,7 +100,7 @@ static void multipath_end_request(struct bio *bio, int error)
md_error (mp_bh->mddev, rdev);
printk(KERN_ERR "multipath: %s: rescheduling sector %llu\n",
bdevname(rdev->bdev,b),
- (unsigned long long)bio->bi_sector);
+ (unsigned long long)bio->bi_iter.bi_sector);
multipath_reschedule_retry(mp_bh);
} else
multipath_end_bh_io(mp_bh, error);
@@ -132,7 +132,7 @@ static void multipath_make_request(struct mddev *mddev, struct bio * bio)
multipath = conf->multipaths + mp_bh->path;

mp_bh->bio = *bio;
- mp_bh->bio.bi_sector += multipath->rdev->data_offset;
+ mp_bh->bio.bi_iter.bi_sector += multipath->rdev->data_offset;
mp_bh->bio.bi_bdev = multipath->rdev->bdev;
mp_bh->bio.bi_rw |= REQ_FAILFAST_TRANSPORT;
mp_bh->bio.bi_end_io = multipath_end_request;
@@ -355,21 +355,22 @@ static void multipathd(struct md_thread *thread)
spin_unlock_irqrestore(&conf->device_lock, flags);

bio = &mp_bh->bio;
- bio->bi_sector = mp_bh->master_bio->bi_sector;
+ bio->bi_iter.bi_sector = mp_bh->master_bio->bi_iter.bi_sector;

if ((mp_bh->path = multipath_map (conf))<0) {
printk(KERN_ALERT "multipath: %s: unrecoverable IO read"
" error for block %llu\n",
bdevname(bio->bi_bdev,b),
- (unsigned long long)bio->bi_sector);
+ (unsigned long long)bio->bi_iter.bi_sector);
multipath_end_bh_io(mp_bh, -EIO);
} else {
printk(KERN_ERR "multipath: %s: redirecting sector %llu"
" to another IO path\n",
bdevname(bio->bi_bdev,b),
- (unsigned long long)bio->bi_sector);
+ (unsigned long long)bio->bi_iter.bi_sector);
*bio = *(mp_bh->master_bio);
- bio->bi_sector += conf->multipaths[mp_bh->path].rdev->data_offset;
+ bio->bi_iter.bi_sector +=
+ conf->multipaths[mp_bh->path].rdev->data_offset;
bio->bi_bdev = conf->multipaths[mp_bh->path].rdev->bdev;
bio->bi_rw |= REQ_FAILFAST_TRANSPORT;
bio->bi_end_io = multipath_end_request;
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index fcf65e5..d8c2ec0 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -501,10 +501,11 @@ static inline int is_io_in_chunk_boundary(struct mddev *mddev,
unsigned int chunk_sects, struct bio *bio)
{
if (likely(is_power_of_2(chunk_sects))) {
- return chunk_sects >= ((bio->bi_sector & (chunk_sects-1))
+ return chunk_sects >=
+ ((bio->bi_iter.bi_sector & (chunk_sects-1))
+ bio_sectors(bio));
} else{
- sector_t sector = bio->bi_sector;
+ sector_t sector = bio->bi_iter.bi_sector;
return chunk_sects >= (sector_div(sector, chunk_sects)
+ bio_sectors(bio));
}
@@ -524,7 +525,7 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)

chunk_sects = mddev->chunk_sectors;
if (unlikely(!is_io_in_chunk_boundary(mddev, chunk_sects, bio))) {
- sector_t sector = bio->bi_sector;
+ sector_t sector = bio->bi_iter.bi_sector;
struct bio_pair *bp;
/* Sanity check -- queue functions should prevent this happening */
if (bio_segments(bio) > 1)
@@ -544,12 +545,12 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
return;
}

- sector_offset = bio->bi_sector;
+ sector_offset = bio->bi_iter.bi_sector;
zone = find_zone(mddev->private, &sector_offset);
- tmp_dev = map_sector(mddev, zone, bio->bi_sector,
+ tmp_dev = map_sector(mddev, zone, bio->bi_iter.bi_sector,
&sector_offset);
bio->bi_bdev = tmp_dev->bdev;
- bio->bi_sector = sector_offset + zone->dev_start +
+ bio->bi_iter.bi_sector = sector_offset + zone->dev_start +
tmp_dev->data_offset;

if (unlikely((bio->bi_rw & REQ_DISCARD) &&
@@ -566,7 +567,8 @@ bad_map:
printk("md/raid0:%s: make_request bug: can't convert block across chunks"
" or bigger than %dk %llu %d\n",
mdname(mddev), chunk_sects / 2,
- (unsigned long long)bio->bi_sector, bio_sectors(bio) / 2);
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio_sectors(bio) / 2);

bio_io_error(bio);
return;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 5595118..1c15387 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -255,8 +255,8 @@ static void raid_end_bio_io(struct r1bio *r1_bio)
if (!test_and_set_bit(R1BIO_Returned, &r1_bio->state)) {
pr_debug("raid1: sync end %s on sectors %llu-%llu\n",
(bio_data_dir(bio) == WRITE) ? "write" : "read",
- (unsigned long long) bio->bi_sector,
- (unsigned long long) bio->bi_sector +
+ (unsigned long long) bio->bi_iter.bi_sector,
+ (unsigned long long) bio->bi_iter.bi_sector +
bio_sectors(bio) - 1);

call_bio_endio(r1_bio);
@@ -446,9 +446,8 @@ static void raid1_end_write_request(struct bio *bio, int error)
struct bio *mbio = r1_bio->master_bio;
pr_debug("raid1: behind end write sectors"
" %llu-%llu\n",
- (unsigned long long) mbio->bi_sector,
- (unsigned long long) mbio->bi_sector +
- bio_sectors(mbio) - 1);
+ (uint64_t) mbio->bi_iter.bi_sector,
+ bio_end_sector(mbio) - 1);
call_bio_endio(r1_bio);
}
}
@@ -935,7 +934,8 @@ do_sync_io:
if (bvecs[i].bv_page)
put_page(bvecs[i].bv_page);
kfree(bvecs);
- pr_debug("%dB behind alloc failed, doing sync I/O\n", bio->bi_size);
+ pr_debug("%dB behind alloc failed, doing sync I/O\n",
+ bio->bi_iter.bi_size);
}

struct raid1_plug_cb {
@@ -1014,7 +1014,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)

if (bio_data_dir(bio) == WRITE &&
bio_end_sector(bio) > mddev->suspend_lo &&
- bio->bi_sector < mddev->suspend_hi) {
+ bio->bi_iter.bi_sector < mddev->suspend_hi) {
/* As the suspend_* range is controlled by
* userspace, we want an interruptible
* wait.
@@ -1025,7 +1025,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
prepare_to_wait(&conf->wait_barrier,
&w, TASK_INTERRUPTIBLE);
if (bio_end_sector(bio) <= mddev->suspend_lo ||
- bio->bi_sector >= mddev->suspend_hi)
+ bio->bi_iter.bi_sector >= mddev->suspend_hi)
break;
schedule();
}
@@ -1047,7 +1047,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
r1_bio->sectors = bio_sectors(bio);
r1_bio->state = 0;
r1_bio->mddev = mddev;
- r1_bio->sector = bio->bi_sector;
+ r1_bio->sector = bio->bi_iter.bi_sector;

/* We might need to issue multiple reads to different
* devices if there are bad blocks around, so we keep
@@ -1087,12 +1087,13 @@ read_again:
r1_bio->read_disk = rdisk;

read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev);
- md_trim_bio(read_bio, r1_bio->sector - bio->bi_sector,
+ md_trim_bio(read_bio, r1_bio->sector - bio->bi_iter.bi_sector,
max_sectors);

r1_bio->bios[rdisk] = read_bio;

- read_bio->bi_sector = r1_bio->sector + mirror->rdev->data_offset;
+ read_bio->bi_iter.bi_sector = r1_bio->sector +
+ mirror->rdev->data_offset;
read_bio->bi_bdev = mirror->rdev->bdev;
read_bio->bi_end_io = raid1_end_read_request;
read_bio->bi_rw = READ | do_sync;
@@ -1104,7 +1105,7 @@ read_again:
*/

sectors_handled = (r1_bio->sector + max_sectors
- - bio->bi_sector);
+ - bio->bi_iter.bi_sector);
r1_bio->sectors = max_sectors;
spin_lock_irq(&conf->device_lock);
if (bio->bi_phys_segments == 0)
@@ -1125,7 +1126,8 @@ read_again:
r1_bio->sectors = bio_sectors(bio) - sectors_handled;
r1_bio->state = 0;
r1_bio->mddev = mddev;
- r1_bio->sector = bio->bi_sector + sectors_handled;
+ r1_bio->sector = bio->bi_iter.bi_sector +
+ sectors_handled;
goto read_again;
} else
generic_make_request(read_bio);
@@ -1244,7 +1246,7 @@ read_again:
bio->bi_phys_segments++;
spin_unlock_irq(&conf->device_lock);
}
- sectors_handled = r1_bio->sector + max_sectors - bio->bi_sector;
+ sectors_handled = r1_bio->sector + max_sectors - bio->bi_iter.bi_sector;

atomic_set(&r1_bio->remaining, 1);
atomic_set(&r1_bio->behind_remaining, 0);
@@ -1256,7 +1258,8 @@ read_again:
continue;

mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
- md_trim_bio(mbio, r1_bio->sector - bio->bi_sector, max_sectors);
+ md_trim_bio(mbio, r1_bio->sector - bio->bi_iter.bi_sector,
+ max_sectors);

if (first_clone) {
/* do behind I/O ?
@@ -1290,7 +1293,7 @@ read_again:

r1_bio->bios[i] = mbio;

- mbio->bi_sector = (r1_bio->sector +
+ mbio->bi_iter.bi_sector = (r1_bio->sector +
conf->mirrors[i].rdev->data_offset);
mbio->bi_bdev = conf->mirrors[i].rdev->bdev;
mbio->bi_end_io = raid1_end_write_request;
@@ -1330,7 +1333,7 @@ read_again:
r1_bio->sectors = bio_sectors(bio) - sectors_handled;
r1_bio->state = 0;
r1_bio->mddev = mddev;
- r1_bio->sector = bio->bi_sector + sectors_handled;
+ r1_bio->sector = bio->bi_iter.bi_sector + sectors_handled;
goto retry_write;
}

@@ -1880,14 +1883,14 @@ static int process_checks(struct r1bio *r1_bio)
/* fixup the bio for reuse */
bio_reset(sbio);
sbio->bi_vcnt = vcnt;
- sbio->bi_size = r1_bio->sectors << 9;
- sbio->bi_sector = r1_bio->sector +
+ sbio->bi_iter.bi_size = r1_bio->sectors << 9;
+ sbio->bi_iter.bi_sector = r1_bio->sector +
conf->mirrors[i].rdev->data_offset;
sbio->bi_bdev = conf->mirrors[i].rdev->bdev;
sbio->bi_end_io = end_sync_read;
sbio->bi_private = r1_bio;

- size = sbio->bi_size;
+ size = sbio->bi_iter.bi_size;
for (j = 0; j < vcnt ; j++) {
struct bio_vec *bi;
bi = &sbio->bi_io_vec[j];
@@ -2104,11 +2107,11 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
}

wbio->bi_rw = WRITE;
- wbio->bi_sector = r1_bio->sector;
- wbio->bi_size = r1_bio->sectors << 9;
+ wbio->bi_iter.bi_sector = r1_bio->sector;
+ wbio->bi_iter.bi_size = r1_bio->sectors << 9;

md_trim_bio(wbio, sector - r1_bio->sector, sectors);
- wbio->bi_sector += rdev->data_offset;
+ wbio->bi_iter.bi_sector += rdev->data_offset;
wbio->bi_bdev = rdev->bdev;
if (submit_bio_wait(WRITE, wbio) == 0)
/* failure! */
@@ -2222,7 +2225,8 @@ read_more:
}
r1_bio->read_disk = disk;
bio = bio_clone_mddev(r1_bio->master_bio, GFP_NOIO, mddev);
- md_trim_bio(bio, r1_bio->sector - bio->bi_sector, max_sectors);
+ md_trim_bio(bio, r1_bio->sector - bio->bi_iter.bi_sector,
+ max_sectors);
r1_bio->bios[r1_bio->read_disk] = bio;
rdev = conf->mirrors[disk].rdev;
printk_ratelimited(KERN_ERR
@@ -2231,7 +2235,7 @@ read_more:
mdname(mddev),
(unsigned long long)r1_bio->sector,
bdevname(rdev->bdev, b));
- bio->bi_sector = r1_bio->sector + rdev->data_offset;
+ bio->bi_iter.bi_sector = r1_bio->sector + rdev->data_offset;
bio->bi_bdev = rdev->bdev;
bio->bi_end_io = raid1_end_read_request;
bio->bi_rw = READ | do_sync;
@@ -2240,7 +2244,7 @@ read_more:
/* Drat - have to split this up more */
struct bio *mbio = r1_bio->master_bio;
int sectors_handled = (r1_bio->sector + max_sectors
- - mbio->bi_sector);
+ - mbio->bi_iter.bi_sector);
r1_bio->sectors = max_sectors;
spin_lock_irq(&conf->device_lock);
if (mbio->bi_phys_segments == 0)
@@ -2258,7 +2262,8 @@ read_more:
r1_bio->state = 0;
set_bit(R1BIO_ReadError, &r1_bio->state);
r1_bio->mddev = mddev;
- r1_bio->sector = mbio->bi_sector + sectors_handled;
+ r1_bio->sector = mbio->bi_iter.bi_sector +
+ sectors_handled;

goto read_more;
} else
@@ -2482,7 +2487,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
}
if (bio->bi_end_io) {
atomic_inc(&rdev->nr_pending);
- bio->bi_sector = sector_nr + rdev->data_offset;
+ bio->bi_iter.bi_sector = sector_nr + rdev->data_offset;
bio->bi_bdev = rdev->bdev;
bio->bi_private = r1_bio;
}
@@ -2582,7 +2587,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
continue;
/* remove last page from this bio */
bio->bi_vcnt--;
- bio->bi_size -= len;
+ bio->bi_iter.bi_size -= len;
bio->bi_flags &= ~(1<< BIO_SEG_VALID);
}
goto bio_full;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 59d4daa..5899d87 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1174,7 +1174,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
/* If this request crosses a chunk boundary, we need to
* split it. This will only happen for 1 PAGE (or less) requests.
*/
- if (unlikely((bio->bi_sector & chunk_mask) + bio_sectors(bio)
+ if (unlikely((bio->bi_iter.bi_sector & chunk_mask) + bio_sectors(bio)
> chunk_sects
&& (conf->geo.near_copies < conf->geo.raid_disks
|| conf->prev.near_copies < conf->prev.raid_disks))) {
@@ -1185,8 +1185,8 @@ static void make_request(struct mddev *mddev, struct bio * bio)
/* This is a one page bio that upper layers
* refuse to split for us, so we need to split it.
*/
- bp = bio_split(bio,
- chunk_sects - (bio->bi_sector & (chunk_sects - 1)) );
+ bp = bio_split(bio, chunk_sects -
+ (bio->bi_iter.bi_sector & (chunk_sects - 1)));

/* Each of these 'make_request' calls will call 'wait_barrier'.
* If the first succeeds but the second blocks due to the resync
@@ -1213,7 +1213,8 @@ static void make_request(struct mddev *mddev, struct bio * bio)
bad_map:
printk("md/raid10:%s: make_request bug: can't convert block across chunks"
" or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects/2,
- (unsigned long long)bio->bi_sector, bio_sectors(bio) / 2);
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio_sectors(bio) / 2);

bio_io_error(bio);
return;
@@ -1230,24 +1231,25 @@ static void make_request(struct mddev *mddev, struct bio * bio)

sectors = bio_sectors(bio);
while (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
- bio->bi_sector < conf->reshape_progress &&
- bio->bi_sector + sectors > conf->reshape_progress) {
+ bio->bi_iter.bi_sector < conf->reshape_progress &&
+ bio->bi_iter.bi_sector + sectors > conf->reshape_progress) {
/* IO spans the reshape position. Need to wait for
* reshape to pass
*/
allow_barrier(conf);
wait_event(conf->wait_barrier,
- conf->reshape_progress <= bio->bi_sector ||
- conf->reshape_progress >= bio->bi_sector + sectors);
+ conf->reshape_progress <= bio->bi_iter.bi_sector ||
+ conf->reshape_progress >= bio->bi_iter.bi_sector +
+ sectors);
wait_barrier(conf);
}
if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
bio_data_dir(bio) == WRITE &&
(mddev->reshape_backwards
- ? (bio->bi_sector < conf->reshape_safe &&
- bio->bi_sector + sectors > conf->reshape_progress)
- : (bio->bi_sector + sectors > conf->reshape_safe &&
- bio->bi_sector < conf->reshape_progress))) {
+ ? (bio->bi_iter.bi_sector < conf->reshape_safe &&
+ bio->bi_iter.bi_sector + sectors > conf->reshape_progress)
+ : (bio->bi_iter.bi_sector + sectors > conf->reshape_safe &&
+ bio->bi_iter.bi_sector < conf->reshape_progress))) {
/* Need to update reshape_position in metadata */
mddev->reshape_position = conf->reshape_progress;
set_bit(MD_CHANGE_DEVS, &mddev->flags);
@@ -1265,7 +1267,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
r10_bio->sectors = sectors;

r10_bio->mddev = mddev;
- r10_bio->sector = bio->bi_sector;
+ r10_bio->sector = bio->bi_iter.bi_sector;
r10_bio->state = 0;

/* We might need to issue multiple reads to different
@@ -1294,13 +1296,13 @@ read_again:
slot = r10_bio->read_slot;

read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev);
- md_trim_bio(read_bio, r10_bio->sector - bio->bi_sector,
+ md_trim_bio(read_bio, r10_bio->sector - bio->bi_iter.bi_sector,
max_sectors);

r10_bio->devs[slot].bio = read_bio;
r10_bio->devs[slot].rdev = rdev;

- read_bio->bi_sector = r10_bio->devs[slot].addr +
+ read_bio->bi_iter.bi_sector = r10_bio->devs[slot].addr +
choose_data_offset(r10_bio, rdev);
read_bio->bi_bdev = rdev->bdev;
read_bio->bi_end_io = raid10_end_read_request;
@@ -1312,7 +1314,7 @@ read_again:
* need another r10_bio.
*/
sectors_handled = (r10_bio->sectors + max_sectors
- - bio->bi_sector);
+ - bio->bi_iter.bi_sector);
r10_bio->sectors = max_sectors;
spin_lock_irq(&conf->device_lock);
if (bio->bi_phys_segments == 0)
@@ -1333,7 +1335,8 @@ read_again:
r10_bio->sectors = bio_sectors(bio) - sectors_handled;
r10_bio->state = 0;
r10_bio->mddev = mddev;
- r10_bio->sector = bio->bi_sector + sectors_handled;
+ r10_bio->sector = bio->bi_iter.bi_sector +
+ sectors_handled;
goto read_again;
} else
generic_make_request(read_bio);
@@ -1491,7 +1494,8 @@ retry_write:
bio->bi_phys_segments++;
spin_unlock_irq(&conf->device_lock);
}
- sectors_handled = r10_bio->sector + max_sectors - bio->bi_sector;
+ sectors_handled = r10_bio->sector + max_sectors -
+ bio->bi_iter.bi_sector;

atomic_set(&r10_bio->remaining, 1);
bitmap_startwrite(mddev->bitmap, r10_bio->sector, r10_bio->sectors, 0);
@@ -1502,11 +1506,11 @@ retry_write:
if (r10_bio->devs[i].bio) {
struct md_rdev *rdev = conf->mirrors[d].rdev;
mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
- md_trim_bio(mbio, r10_bio->sector - bio->bi_sector,
- max_sectors);
+ md_trim_bio(mbio, r10_bio->sector -
+ bio->bi_iter.bi_sector, max_sectors);
r10_bio->devs[i].bio = mbio;

- mbio->bi_sector = (r10_bio->devs[i].addr+
+ mbio->bi_iter.bi_sector = (r10_bio->devs[i].addr+
choose_data_offset(r10_bio,
rdev));
mbio->bi_bdev = rdev->bdev;
@@ -1545,11 +1549,11 @@ retry_write:
rdev = conf->mirrors[d].rdev;
}
mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
- md_trim_bio(mbio, r10_bio->sector - bio->bi_sector,
- max_sectors);
+ md_trim_bio(mbio, r10_bio->sector -
+ bio->bi_iter.bi_sector, max_sectors);
r10_bio->devs[i].repl_bio = mbio;

- mbio->bi_sector = (r10_bio->devs[i].addr +
+ mbio->bi_iter.bi_sector = (r10_bio->devs[i].addr +
choose_data_offset(
r10_bio, rdev));
mbio->bi_bdev = rdev->bdev;
@@ -1583,7 +1587,7 @@ retry_write:
r10_bio->sectors = bio_sectors(bio) - sectors_handled;

r10_bio->mddev = mddev;
- r10_bio->sector = bio->bi_sector + sectors_handled;
+ r10_bio->sector = bio->bi_iter.bi_sector + sectors_handled;
r10_bio->state = 0;
goto retry_write;
}
@@ -2085,10 +2089,10 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
bio_reset(tbio);

tbio->bi_vcnt = vcnt;
- tbio->bi_size = r10_bio->sectors << 9;
+ tbio->bi_iter.bi_size = r10_bio->sectors << 9;
tbio->bi_rw = WRITE;
tbio->bi_private = r10_bio;
- tbio->bi_sector = r10_bio->devs[i].addr;
+ tbio->bi_iter.bi_sector = r10_bio->devs[i].addr;

for (j=0; j < vcnt ; j++) {
tbio->bi_io_vec[j].bv_offset = 0;
@@ -2105,7 +2109,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
atomic_inc(&r10_bio->remaining);
md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(tbio));

- tbio->bi_sector += conf->mirrors[d].rdev->data_offset;
+ tbio->bi_iter.bi_sector += conf->mirrors[d].rdev->data_offset;
tbio->bi_bdev = conf->mirrors[d].rdev->bdev;
generic_make_request(tbio);
}
@@ -2569,8 +2573,8 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
sectors = sect_to_write;
/* Write at 'sector' for 'sectors' */
wbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
- md_trim_bio(wbio, sector - bio->bi_sector, sectors);
- wbio->bi_sector = (r10_bio->devs[i].addr+
+ md_trim_bio(wbio, sector - bio->bi_iter.bi_sector, sectors);
+ wbio->bi_iter.bi_sector = (r10_bio->devs[i].addr+
choose_data_offset(r10_bio, rdev) +
(sector - r10_bio->sector));
wbio->bi_bdev = rdev->bdev;
@@ -2643,11 +2647,11 @@ read_more:
bio = bio_clone_mddev(r10_bio->master_bio,
GFP_NOIO, mddev);
md_trim_bio(bio,
- r10_bio->sector - bio->bi_sector,
+ r10_bio->sector - bio->bi_iter.bi_sector,
max_sectors);
r10_bio->devs[slot].bio = bio;
r10_bio->devs[slot].rdev = rdev;
- bio->bi_sector = r10_bio->devs[slot].addr
+ bio->bi_iter.bi_sector = r10_bio->devs[slot].addr
+ choose_data_offset(r10_bio, rdev);
bio->bi_bdev = rdev->bdev;
bio->bi_rw = READ | do_sync;
@@ -2658,7 +2662,7 @@ read_more:
struct bio *mbio = r10_bio->master_bio;
int sectors_handled =
r10_bio->sector + max_sectors
- - mbio->bi_sector;
+ - mbio->bi_iter.bi_sector;
r10_bio->sectors = max_sectors;
spin_lock_irq(&conf->device_lock);
if (mbio->bi_phys_segments == 0)
@@ -2676,7 +2680,7 @@ read_more:
set_bit(R10BIO_ReadError,
&r10_bio->state);
r10_bio->mddev = mddev;
- r10_bio->sector = mbio->bi_sector
+ r10_bio->sector = mbio->bi_iter.bi_sector
+ sectors_handled;

goto read_more;
@@ -3115,7 +3119,8 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
bio->bi_end_io = end_sync_read;
bio->bi_rw = READ;
from_addr = r10_bio->devs[j].addr;
- bio->bi_sector = from_addr + rdev->data_offset;
+ bio->bi_iter.bi_sector = from_addr +
+ rdev->data_offset;
bio->bi_bdev = rdev->bdev;
atomic_inc(&rdev->nr_pending);
/* and we write to 'i' (if not in_sync) */
@@ -3139,7 +3144,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_write;
bio->bi_rw = WRITE;
- bio->bi_sector = to_addr
+ bio->bi_iter.bi_sector = to_addr
+ rdev->data_offset;
bio->bi_bdev = rdev->bdev;
atomic_inc(&r10_bio->remaining);
@@ -3168,7 +3173,8 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_write;
bio->bi_rw = WRITE;
- bio->bi_sector = to_addr + rdev->data_offset;
+ bio->bi_iter.bi_sector = to_addr +
+ rdev->data_offset;
bio->bi_bdev = rdev->bdev;
atomic_inc(&r10_bio->remaining);
break;
@@ -3286,7 +3292,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_read;
bio->bi_rw = READ;
- bio->bi_sector = sector +
+ bio->bi_iter.bi_sector = sector +
conf->mirrors[d].rdev->data_offset;
bio->bi_bdev = conf->mirrors[d].rdev->bdev;
count++;
@@ -3308,7 +3314,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_write;
bio->bi_rw = WRITE;
- bio->bi_sector = sector +
+ bio->bi_iter.bi_sector = sector +
conf->mirrors[d].replacement->data_offset;
bio->bi_bdev = conf->mirrors[d].replacement->bdev;
count++;
@@ -3355,7 +3361,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
bio2 = bio2->bi_next) {
/* remove last page from this bio */
bio2->bi_vcnt--;
- bio2->bi_size -= len;
+ bio2->bi_iter.bi_size -= len;
bio2->bi_flags &= ~(1<< BIO_SEG_VALID);
}
goto bio_full;
@@ -4371,7 +4377,7 @@ read_more:
read_bio = bio_alloc_mddev(GFP_KERNEL, RESYNC_PAGES, mddev);

read_bio->bi_bdev = rdev->bdev;
- read_bio->bi_sector = (r10_bio->devs[r10_bio->read_slot].addr
+ read_bio->bi_iter.bi_sector = (r10_bio->devs[r10_bio->read_slot].addr
+ rdev->data_offset);
read_bio->bi_private = r10_bio;
read_bio->bi_end_io = end_sync_read;
@@ -4379,7 +4385,7 @@ read_more:
read_bio->bi_flags &= ~(BIO_POOL_MASK - 1);
read_bio->bi_flags |= 1 << BIO_UPTODATE;
read_bio->bi_vcnt = 0;
- read_bio->bi_size = 0;
+ read_bio->bi_iter.bi_size = 0;
r10_bio->master_bio = read_bio;
r10_bio->read_slot = r10_bio->devs[r10_bio->read_slot].devnum;

@@ -4405,7 +4411,8 @@ read_more:

bio_reset(b);
b->bi_bdev = rdev2->bdev;
- b->bi_sector = r10_bio->devs[s/2].addr + rdev2->new_data_offset;
+ b->bi_iter.bi_sector = r10_bio->devs[s/2].addr +
+ rdev2->new_data_offset;
b->bi_private = r10_bio;
b->bi_end_io = end_reshape_write;
b->bi_rw = WRITE;
@@ -4432,7 +4439,7 @@ read_more:
bio2 = bio2->bi_next) {
/* Remove last page from this bio */
bio2->bi_vcnt--;
- bio2->bi_size -= len;
+ bio2->bi_iter.bi_size -= len;
bio2->bi_flags &= ~(1<<BIO_SEG_VALID);
}
goto bio_full;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9359828..1b87468 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -91,7 +91,7 @@ static inline struct hlist_head *stripe_hash(struct r5conf *conf, sector_t sect)
static inline struct bio *r5_next_bio(struct bio *bio, sector_t sector)
{
int sectors = bio_sectors(bio);
- if (bio->bi_sector + sectors < sector + STRIPE_SECTORS)
+ if (bio->bi_iter.bi_sector + sectors < sector + STRIPE_SECTORS)
return bio->bi_next;
else
return NULL;
@@ -183,7 +183,7 @@ static void return_io(struct bio *return_bi)

return_bi = bi->bi_next;
bi->bi_next = NULL;
- bi->bi_size = 0;
+ bi->bi_iter.bi_size = 0;
trace_block_bio_complete(bdev_get_queue(bi->bi_bdev),
bi, 0);
bio_endio(bi, 0);
@@ -656,17 +656,17 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
bi->bi_rw, i);
atomic_inc(&sh->count);
if (use_new_offset(conf, sh))
- bi->bi_sector = (sh->sector
+ bi->bi_iter.bi_sector = (sh->sector
+ rdev->new_data_offset);
else
- bi->bi_sector = (sh->sector
+ bi->bi_iter.bi_sector = (sh->sector
+ rdev->data_offset);
if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
bi->bi_rw |= REQ_FLUSH;

bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
bi->bi_io_vec[0].bv_offset = 0;
- bi->bi_size = STRIPE_SIZE;
+ bi->bi_iter.bi_size = STRIPE_SIZE;
if (rrdev)
set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags);

@@ -696,14 +696,14 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
rbi->bi_rw, i);
atomic_inc(&sh->count);
if (use_new_offset(conf, sh))
- rbi->bi_sector = (sh->sector
+ rbi->bi_iter.bi_sector = (sh->sector
+ rrdev->new_data_offset);
else
- rbi->bi_sector = (sh->sector
+ rbi->bi_iter.bi_sector = (sh->sector
+ rrdev->data_offset);
rbi->bi_io_vec[0].bv_len = STRIPE_SIZE;
rbi->bi_io_vec[0].bv_offset = 0;
- rbi->bi_size = STRIPE_SIZE;
+ rbi->bi_iter.bi_size = STRIPE_SIZE;
if (conf->mddev->gendisk)
trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev),
rbi, disk_devt(conf->mddev->gendisk),
@@ -732,10 +732,10 @@ async_copy_data(int frombio, struct bio *bio, struct page *page,
struct async_submit_ctl submit;
enum async_tx_flags flags = 0;

- if (bio->bi_sector >= sector)
- page_offset = (signed)(bio->bi_sector - sector) * 512;
+ if (bio->bi_iter.bi_sector >= sector)
+ page_offset = (signed)(bio->bi_iter.bi_sector - sector) * 512;
else
- page_offset = (signed)(sector - bio->bi_sector) * -512;
+ page_offset = (signed)(sector - bio->bi_iter.bi_sector) * -512;

if (frombio)
flags |= ASYNC_TX_FENCE;
@@ -802,7 +802,7 @@ static void ops_complete_biofill(void *stripe_head_ref)
BUG_ON(!dev->read);
rbi = dev->read;
dev->read = NULL;
- while (rbi && rbi->bi_sector <
+ while (rbi && rbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
rbi2 = r5_next_bio(rbi, dev->sector);
if (!raid5_dec_bi_active_stripes(rbi)) {
@@ -838,7 +838,7 @@ static void ops_run_biofill(struct stripe_head *sh)
dev->read = rbi = dev->toread;
dev->toread = NULL;
spin_unlock_irq(&sh->stripe_lock);
- while (rbi && rbi->bi_sector <
+ while (rbi && rbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
tx = async_copy_data(0, rbi, dev->page,
dev->sector, tx);
@@ -1180,7 +1180,7 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx)
wbi = dev->written = chosen;
spin_unlock_irq(&sh->stripe_lock);

- while (wbi && wbi->bi_sector <
+ while (wbi && wbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
if (wbi->bi_rw & REQ_FUA)
set_bit(R5_WantFUA, &dev->flags);
@@ -2382,7 +2382,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
int firstwrite=0;

pr_debug("adding bi b#%llu to stripe s#%llu\n",
- (unsigned long long)bi->bi_sector,
+ (unsigned long long)bi->bi_iter.bi_sector,
(unsigned long long)sh->sector);

/*
@@ -2400,12 +2400,12 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
firstwrite = 1;
} else
bip = &sh->dev[dd_idx].toread;
- while (*bip && (*bip)->bi_sector < bi->bi_sector) {
- if (bio_end_sector(*bip) > bi->bi_sector)
+ while (*bip && (*bip)->bi_iter.bi_sector < bi->bi_iter.bi_sector) {
+ if (bio_end_sector(*bip) > bi->bi_iter.bi_sector)
goto overlap;
bip = & (*bip)->bi_next;
}
- if (*bip && (*bip)->bi_sector < bio_end_sector(bi))
+ if (*bip && (*bip)->bi_iter.bi_sector < bio_end_sector(bi))
goto overlap;

BUG_ON(*bip && bi->bi_next && (*bip) != bi->bi_next);
@@ -2419,7 +2419,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
sector_t sector = sh->dev[dd_idx].sector;
for (bi=sh->dev[dd_idx].towrite;
sector < sh->dev[dd_idx].sector + STRIPE_SECTORS &&
- bi && bi->bi_sector <= sector;
+ bi && bi->bi_iter.bi_sector <= sector;
bi = r5_next_bio(bi, sh->dev[dd_idx].sector)) {
if (bio_end_sector(bi) >= sector)
sector = bio_end_sector(bi);
@@ -2429,7 +2429,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
}

pr_debug("added bi b#%llu to stripe s#%llu, disk %d.\n",
- (unsigned long long)(*bip)->bi_sector,
+ (unsigned long long)(*bip)->bi_iter.bi_sector,
(unsigned long long)sh->sector, dd_idx);
spin_unlock_irq(&sh->stripe_lock);

@@ -2504,7 +2504,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);

- while (bi && bi->bi_sector <
+ while (bi && bi->bi_iter.bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
clear_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -2523,7 +2523,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
bi = sh->dev[i].written;
sh->dev[i].written = NULL;
if (bi) bitmap_end = 1;
- while (bi && bi->bi_sector <
+ while (bi && bi->bi_iter.bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
clear_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -2547,7 +2547,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
spin_unlock_irq(&sh->stripe_lock);
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
- while (bi && bi->bi_sector <
+ while (bi && bi->bi_iter.bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *nextbi =
r5_next_bio(bi, sh->dev[i].sector);
@@ -2771,7 +2771,7 @@ static void handle_stripe_clean_event(struct r5conf *conf,
clear_bit(R5_UPTODATE, &dev->flags);
wbi = dev->written;
dev->written = NULL;
- while (wbi && wbi->bi_sector <
+ while (wbi && wbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
wbi2 = r5_next_bio(wbi, dev->sector);
if (!raid5_dec_bi_active_stripes(wbi)) {
@@ -3846,7 +3846,7 @@ static int raid5_mergeable_bvec(struct request_queue *q,

static int in_chunk_boundary(struct mddev *mddev, struct bio *bio)
{
- sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev);
+ sector_t sector = bio->bi_iter.bi_sector + get_start_sect(bio->bi_bdev);
unsigned int chunk_sectors = mddev->chunk_sectors;
unsigned int bio_sectors = bio_sectors(bio);

@@ -3983,9 +3983,9 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
/*
* compute position
*/
- align_bi->bi_sector = raid5_compute_sector(conf, raid_bio->bi_sector,
- 0,
- &dd_idx, NULL);
+ align_bi->bi_iter.bi_sector =
+ raid5_compute_sector(conf, raid_bio->bi_iter.bi_sector,
+ 0, &dd_idx, NULL);

end_sector = bio_end_sector(align_bi);
rcu_read_lock();
@@ -4010,7 +4010,8 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
align_bi->bi_flags &= ~(1 << BIO_SEG_VALID);

if (!bio_fits_rdev(align_bi) ||
- is_badblock(rdev, align_bi->bi_sector, bio_sectors(align_bi),
+ is_badblock(rdev, align_bi->bi_iter.bi_sector,
+ bio_sectors(align_bi),
&first_bad, &bad_sectors)) {
/* too big in some way, or has a known bad block */
bio_put(align_bi);
@@ -4019,7 +4020,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
}

/* No reshape active, so we can trust rdev->data_offset */
- align_bi->bi_sector += rdev->data_offset;
+ align_bi->bi_iter.bi_sector += rdev->data_offset;

spin_lock_irq(&conf->device_lock);
wait_event_lock_irq(conf->wait_for_stripe,
@@ -4031,7 +4032,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
if (mddev->gendisk)
trace_block_bio_remap(bdev_get_queue(align_bi->bi_bdev),
align_bi, disk_devt(mddev->gendisk),
- raid_bio->bi_sector);
+ raid_bio->bi_iter.bi_sector);
generic_make_request(align_bi);
return 1;
} else {
@@ -4166,8 +4167,8 @@ static void make_discard_request(struct mddev *mddev, struct bio *bi)
/* Skip discard while reshape is happening */
return;

- logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
- last_sector = bi->bi_sector + (bi->bi_size>>9);
+ logical_sector = bi->bi_iter.bi_sector & ~((sector_t)STRIPE_SECTORS-1);
+ last_sector = bi->bi_iter.bi_sector + (bi->bi_iter.bi_size>>9);

bi->bi_next = NULL;
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
@@ -4271,7 +4272,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
return;
}

- logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
+ logical_sector = bi->bi_iter.bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bio_end_sector(bi);
bi->bi_next = NULL;
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
@@ -4735,7 +4736,8 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio)
int remaining;
int handled = 0;

- logical_sector = raid_bio->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
+ logical_sector = raid_bio->bi_iter.bi_sector &
+ ~((sector_t)STRIPE_SECTORS-1);
sector = raid5_compute_sector(conf, logical_sector,
0, &dd_idx, NULL);
last_sector = bio_end_sector(raid_bio);
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 6eca019..16814a8 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -819,7 +819,8 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio)
dev_info = bio->bi_bdev->bd_disk->private_data;
if (dev_info == NULL)
goto fail;
- if ((bio->bi_sector & 7) != 0 || (bio->bi_size & 4095) != 0)
+ if ((bio->bi_iter.bi_sector & 7) != 0 ||
+ (bio->bi_iter.bi_size & 4095) != 0)
/* Request is not page-aligned. */
goto fail;
if (bio_end_sector(bio) > get_capacity(bio->bi_bdev->bd_disk)) {
@@ -842,7 +843,7 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio)
}
}

- index = (bio->bi_sector >> 3);
+ index = (bio->bi_iter.bi_sector >> 3);
bio_for_each_segment(bvec, bio, i) {
page_addr = (unsigned long)
page_address(bvec->bv_page) + bvec->bv_offset;
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 464dd29..dd4e73f 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -190,15 +190,16 @@ static void xpram_make_request(struct request_queue *q, struct bio *bio)
unsigned long bytes;
int i;

- if ((bio->bi_sector & 7) != 0 || (bio->bi_size & 4095) != 0)
+ if ((bio->bi_iter.bi_sector & 7) != 0 ||
+ (bio->bi_iter.bi_size & 4095) != 0)
/* Request is not page-aligned. */
goto fail;
- if ((bio->bi_size >> 12) > xdev->size)
+ if ((bio->bi_iter.bi_size >> 12) > xdev->size)
/* Request size is no page-aligned. */
goto fail;
- if ((bio->bi_sector >> 3) > 0xffffffffU - xdev->offset)
+ if ((bio->bi_iter.bi_sector >> 3) > 0xffffffffU - xdev->offset)
goto fail;
- index = (bio->bi_sector >> 3) + xdev->offset;
+ index = (bio->bi_iter.bi_sector >> 3) + xdev->offset;
bio_for_each_segment(bvec, bio, i) {
page_addr = (unsigned long)
kmap(bvec->bv_page) + bvec->bv_offset;
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index aa66361..bac04c2 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -731,7 +731,7 @@ static int _osd_req_list_objects(struct osd_request *or,

bio->bi_rw &= ~REQ_WRITE;
or->in.bio = bio;
- or->in.total_bytes = bio->bi_size;
+ or->in.total_bytes = bio->bi_iter.bi_size;
return 0;
}

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index e34e3fe..7680d53 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -377,8 +377,9 @@ static void __zram_make_request(struct zram *zram, struct bio *bio, int rw)
break;
}

- index = bio->bi_sector >> SECTORS_PER_PAGE_SHIFT;
- offset = (bio->bi_sector & (SECTORS_PER_PAGE - 1)) << SECTOR_SHIFT;
+ index = bio->bi_iter.bi_sector >> SECTORS_PER_PAGE_SHIFT;
+ offset = (bio->bi_iter.bi_sector &
+ (SECTORS_PER_PAGE - 1)) << SECTOR_SHIFT;

bio_for_each_segment(bvec, bio, i) {
int max_transfer_size = PAGE_SIZE - offset;
@@ -423,9 +424,10 @@ out:
static inline int valid_io_request(struct zram *zram, struct bio *bio)
{
if (unlikely(
- (bio->bi_sector >= (zram->disksize >> SECTOR_SHIFT)) ||
- (bio->bi_sector & (ZRAM_SECTOR_PER_LOGICAL_BLOCK - 1)) ||
- (bio->bi_size & (ZRAM_LOGICAL_BLOCK_SIZE - 1)))) {
+ (bio->bi_iter.bi_sector >= (zram->disksize >> SECTOR_SHIFT)) ||
+ (bio->bi_iter.bi_sector &
+ (ZRAM_SECTOR_PER_LOGICAL_BLOCK - 1)) ||
+ (bio->bi_iter.bi_size & (ZRAM_LOGICAL_BLOCK_SIZE - 1)))) {

return 0;
}
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index aa1620a..4032d6b 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -319,7 +319,7 @@ iblock_get_bio(struct se_cmd *cmd, sector_t lba, u32 sg_num)
bio->bi_bdev = ib_dev->ibd_bd;
bio->bi_private = cmd;
bio->bi_end_io = &iblock_bio_done;
- bio->bi_sector = lba;
+ bio->bi_iter.bi_sector = lba;

return bio;
}
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 8fb4291..f824c30 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -215,9 +215,9 @@ unsigned int bio_integrity_tag_size(struct bio *bio)
{
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);

- BUG_ON(bio->bi_size == 0);
+ BUG_ON(bio->bi_iter.bi_size == 0);

- return bi->tag_size * (bio->bi_size / bi->sector_size);
+ return bi->tag_size * (bio->bi_iter.bi_size / bi->sector_size);
}
EXPORT_SYMBOL(bio_integrity_tag_size);

@@ -300,7 +300,7 @@ static void bio_integrity_generate(struct bio *bio)
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
struct blk_integrity_exchg bix;
struct bio_vec *bv;
- sector_t sector = bio->bi_sector;
+ sector_t sector = bio->bi_iter.bi_sector;
unsigned int i, sectors, total;
void *prot_buf = bio->bi_integrity->bip_buf;

@@ -387,7 +387,7 @@ int bio_integrity_prep(struct bio *bio)
bip->bip_owns_buf = 1;
bip->bip_buf = buf;
bip->bip_size = len;
- bip->bip_sector = bio->bi_sector;
+ bip->bip_sector = bio->bi_iter.bi_sector;

/* Map it */
offset = offset_in_page(buf);
diff --git a/fs/bio.c b/fs/bio.c
index 94bbc04..b7c02b0 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -532,13 +532,13 @@ void __bio_clone(struct bio *bio, struct bio *bio_src)
* most users will be overriding ->bi_bdev with a new target,
* so we don't set nor calculate new physical/hw segment counts here
*/
- bio->bi_sector = bio_src->bi_sector;
+ bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
bio->bi_bdev = bio_src->bi_bdev;
bio->bi_flags |= 1 << BIO_CLONED;
bio->bi_rw = bio_src->bi_rw;
bio->bi_vcnt = bio_src->bi_vcnt;
- bio->bi_size = bio_src->bi_size;
- bio->bi_idx = bio_src->bi_idx;
+ bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
+ bio->bi_iter.bi_idx = bio_src->bi_iter.bi_idx;
}
EXPORT_SYMBOL(__bio_clone);

@@ -612,7 +612,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
if (unlikely(bio_flagged(bio, BIO_CLONED)))
return 0;

- if (((bio->bi_size + len) >> 9) > max_sectors)
+ if (((bio->bi_iter.bi_size + len) >> 9) > max_sectors)
return 0;

/*
@@ -635,8 +635,9 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
simulate merging updated prev_bvec
as new bvec. */
.bi_bdev = bio->bi_bdev,
- .bi_sector = bio->bi_sector,
- .bi_size = bio->bi_size - prev_bv_len,
+ .bi_sector = bio->bi_iter.bi_sector,
+ .bi_size = bio->bi_iter.bi_size -
+ prev_bv_len,
.bi_rw = bio->bi_rw,
};

@@ -684,8 +685,8 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
if (q->merge_bvec_fn) {
struct bvec_merge_data bvm = {
.bi_bdev = bio->bi_bdev,
- .bi_sector = bio->bi_sector,
- .bi_size = bio->bi_size,
+ .bi_sector = bio->bi_iter.bi_sector,
+ .bi_size = bio->bi_iter.bi_size,
.bi_rw = bio->bi_rw,
};

@@ -708,7 +709,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
bio->bi_vcnt++;
bio->bi_phys_segments++;
done:
- bio->bi_size += len;
+ bio->bi_iter.bi_size += len;
return len;
}

@@ -807,22 +808,22 @@ void bio_advance(struct bio *bio, unsigned bytes)
if (bio_integrity(bio))
bio_integrity_advance(bio, bytes);

- bio->bi_sector += bytes >> 9;
- bio->bi_size -= bytes;
+ bio->bi_iter.bi_sector += bytes >> 9;
+ bio->bi_iter.bi_size -= bytes;

if (bio->bi_rw & BIO_NO_ADVANCE_ITER_MASK)
return;

while (bytes) {
- if (unlikely(bio->bi_idx >= bio->bi_vcnt)) {
+ if (unlikely(bio->bi_iter.bi_idx >= bio->bi_vcnt)) {
WARN_ONCE(1, "bio idx %d >= vcnt %d\n",
- bio->bi_idx, bio->bi_vcnt);
+ bio->bi_iter.bi_idx, bio->bi_vcnt);
break;
}

if (bytes >= bio_iovec(bio)->bv_len) {
bytes -= bio_iovec(bio)->bv_len;
- bio->bi_idx++;
+ bio->bi_iter.bi_idx++;
} else {
bio_iovec(bio)->bv_len -= bytes;
bio_iovec(bio)->bv_offset += bytes;
@@ -1475,7 +1476,7 @@ struct bio *bio_map_kern(struct request_queue *q, void *data, unsigned int len,
if (IS_ERR(bio))
return bio;

- if (bio->bi_size == len)
+ if (bio->bi_iter.bi_size == len)
return bio;

/*
@@ -1753,16 +1754,16 @@ struct bio_pair *bio_split(struct bio *bi, int first_sectors)
return bp;

trace_block_split(bdev_get_queue(bi->bi_bdev), bi,
- bi->bi_sector + first_sectors);
+ bi->bi_iter.bi_sector + first_sectors);

BUG_ON(bio_segments(bi) > 1);
atomic_set(&bp->cnt, 3);
bp->error = 0;
bp->bio1 = *bi;
bp->bio2 = *bi;
- bp->bio2.bi_sector += first_sectors;
- bp->bio2.bi_size -= first_sectors << 9;
- bp->bio1.bi_size = first_sectors << 9;
+ bp->bio2.bi_iter.bi_sector += first_sectors;
+ bp->bio2.bi_iter.bi_size -= first_sectors << 9;
+ bp->bio1.bi_iter.bi_size = first_sectors << 9;

if (bi->bi_vcnt != 0) {
bp->bv1 = *bio_iovec(bi);
@@ -1815,7 +1816,7 @@ sector_t bio_sector_offset(struct bio *bio, unsigned short index,
sector_sz = queue_logical_block_size(bio->bi_bdev->bd_disk->queue);
sectors = 0;

- if (index >= bio->bi_idx)
+ if (index >= bio->bi_iter.bi_idx)
index = bio->bi_vcnt - 1;

bio_for_each_segment_all(bv, bio, i) {
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 1431a69..2ae350c 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1708,7 +1708,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
return -1;
}
bio->bi_bdev = block_ctx->dev->bdev;
- bio->bi_sector = dev_bytenr >> 9;
+ bio->bi_iter.bi_sector = dev_bytenr >> 9;
bio->bi_end_io = btrfsic_complete_bio_end_io;
bio->bi_private = &complete;

@@ -3112,16 +3112,16 @@ void btrfsic_submit_bio(int rw, struct bio *bio)
int bio_is_patched;
char **mapped_datav;

- dev_bytenr = 512 * bio->bi_sector;
+ dev_bytenr = 512 * bio->bi_iter.bi_sector;
bio_is_patched = 0;
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
"submit_bio(rw=0x%x, bi_vcnt=%u,"
" bi_sector=%lu (bytenr %llu), bi_bdev=%p)\n",
- rw, bio->bi_vcnt, (unsigned long)bio->bi_sector,
- (unsigned long long)dev_bytenr,
- bio->bi_bdev);
+ rw, bio->bi_vcnt,
+ (unsigned long)bio->bi_iter.bi_sector,
+ (unsigned long long)dev_bytenr, bio->bi_bdev);

mapped_datav = kmalloc(sizeof(*mapped_datav) * bio->bi_vcnt,
GFP_NOFS);
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index b189bd1..2d7515b 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -174,7 +174,8 @@ static void end_compressed_bio_read(struct bio *bio, int err)
goto out;

inode = cb->inode;
- ret = check_compressed_csum(inode, cb, (u64)bio->bi_sector << 9);
+ ret = check_compressed_csum(inode, cb,
+ (u64)bio->bi_iter.bi_sector << 9);
if (ret)
goto csum_failed;

@@ -374,7 +375,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
for (pg_index = 0; pg_index < cb->nr_pages; pg_index++) {
page = compressed_pages[pg_index];
page->mapping = inode->i_mapping;
- if (bio->bi_size)
+ if (bio->bi_iter.bi_size)
ret = io_tree->ops->merge_bio_hook(WRITE, page, 0,
PAGE_CACHE_SIZE,
bio, 0);
@@ -508,7 +509,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,

if (!em || last_offset < em->start ||
(last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) ||
- (em->block_start >> 9) != cb->orig_bio->bi_sector) {
+ (em->block_start >> 9) != cb->orig_bio->bi_iter.bi_sector) {
free_extent_map(em);
unlock_extent(tree, last_offset, end);
unlock_page(page);
@@ -554,7 +555,7 @@ next:
* in it. We don't actually do IO on those pages but allocate new ones
* to hold the compressed pages on disk.
*
- * bio->bi_sector points to the compressed extent on disk
+ * bio->bi_iter.bi_sector points to the compressed extent on disk
* bio->bi_io_vec points to all of the inode pages
* bio->bi_vcnt is a count of pages
*
@@ -575,7 +576,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
struct page *page;
struct block_device *bdev;
struct bio *comp_bio;
- u64 cur_disk_byte = (u64)bio->bi_sector << 9;
+ u64 cur_disk_byte = (u64)bio->bi_iter.bi_sector << 9;
u64 em_len;
u64 em_start;
struct extent_map *em;
@@ -657,7 +658,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
page->mapping = inode->i_mapping;
page->index = em_start >> PAGE_CACHE_SHIFT;

- if (comp_bio->bi_size)
+ if (comp_bio->bi_iter.bi_size)
ret = tree->ops->merge_bio_hook(READ, page, 0,
PAGE_CACHE_SIZE,
comp_bio, 0);
@@ -685,8 +686,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
comp_bio, sums);
BUG_ON(ret); /* -ENOMEM */
}
- sums += (comp_bio->bi_size + root->sectorsize - 1) /
- root->sectorsize;
+ sums += (comp_bio->bi_iter.bi_size +
+ root->sectorsize - 1) / root->sectorsize;

ret = btrfs_map_bio(root, READ, comp_bio,
mirror_num, 0);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index e7e7afb..cdeb8d4 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2042,7 +2042,7 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
return -EIO;
bio->bi_private = &compl;
bio->bi_end_io = repair_io_failure_callback;
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
map_length = length;

ret = btrfs_map_block(fs_info, WRITE, logical,
@@ -2053,7 +2053,7 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
}
BUG_ON(mirror_num != bbio->mirror_num);
sector = bbio->stripes[mirror_num-1].physical >> 9;
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
dev = bbio->stripes[mirror_num-1].dev;
kfree(bbio);
if (!dev || !dev->bdev || !dev->writeable) {
@@ -2334,9 +2334,9 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page,
}
bio->bi_private = state;
bio->bi_end_io = failed_bio->bi_end_io;
- bio->bi_sector = failrec->logical >> 9;
+ bio->bi_iter.bi_sector = failrec->logical >> 9;
bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;

bio_add_page(bio, page, failrec->len, start - page_offset(page));

@@ -2452,7 +2452,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);

pr_debug("end_bio_extent_readpage: bi_sector=%llu, err=%d, "
- "mirror=%lu\n", (u64)bio->bi_sector, err,
+ "mirror=%lu\n", (u64)bio->bi_iter.bi_sector, err,
io_bio->mirror_num);
tree = &BTRFS_I(page->mapping->host)->io_tree;

@@ -2559,9 +2559,9 @@ btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs,
}

if (bio) {
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
bio->bi_bdev = bdev;
- bio->bi_sector = first_sector;
+ bio->bi_iter.bi_sector = first_sector;
}
return bio;
}
@@ -2641,7 +2641,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
if (bio_ret && *bio_ret) {
bio = *bio_ret;
if (old_compressed)
- contig = bio->bi_sector == sector;
+ contig = bio->bi_iter.bi_sector == sector;
else
contig = bio_end_sector(bio) == sector;

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index b193bf3..6a5b4ce 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -175,7 +175,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- if (bio->bi_size > PAGE_CACHE_SIZE * 8)
+ if (bio->bi_iter.bi_size > PAGE_CACHE_SIZE * 8)
path->reada = 2;

WARN_ON(bio->bi_vcnt <= 0);
@@ -191,7 +191,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
path->skip_locking = 1;
}

- disk_bytenr = (u64)bio->bi_sector << 9;
+ disk_bytenr = (u64)bio->bi_iter.bi_sector << 9;
if (dio)
offset = logical_offset;
while (bio_index < bio->bi_vcnt) {
@@ -428,13 +428,14 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
u64 disk_bytenr;

WARN_ON(bio->bi_vcnt <= 0);
- sums = kzalloc(btrfs_ordered_sum_size(root, bio->bi_size), GFP_NOFS);
+ sums = kzalloc(btrfs_ordered_sum_size(root, bio->bi_iter.bi_size),
+ GFP_NOFS);
if (!sums)
return -ENOMEM;

sector_sum = sums->sums;
- disk_bytenr = (u64)bio->bi_sector << 9;
- sums->len = bio->bi_size;
+ disk_bytenr = (u64)bio->bi_iter.bi_sector << 9;
+ sums->len = bio->bi_iter.bi_size;
INIT_LIST_HEAD(&sums->list);

if (contig)
@@ -458,7 +459,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
btrfs_add_ordered_sum(inode, ordered, sums);
btrfs_put_ordered_extent(ordered);

- bytes_left = bio->bi_size - total_bytes;
+ bytes_left = bio->bi_iter.bi_size - total_bytes;

sums = kzalloc(btrfs_ordered_sum_size(root, bytes_left),
GFP_NOFS);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index af978f7..3523418 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1635,7 +1635,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
unsigned long bio_flags)
{
struct btrfs_root *root = BTRFS_I(page->mapping->host)->root;
- u64 logical = (u64)bio->bi_sector << 9;
+ u64 logical = (u64)bio->bi_iter.bi_sector << 9;
u64 length = 0;
u64 map_length;
int ret;
@@ -1643,7 +1643,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
if (bio_flags & EXTENT_BIO_COMPRESSED)
return 0;

- length = bio->bi_size;
+ length = bio->bi_iter.bi_size;
map_length = length;
ret = btrfs_map_block(root->fs_info, rw, logical,
&map_length, NULL, 0);
@@ -7063,7 +7063,8 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
printk(KERN_ERR "btrfs direct IO failed ino %llu rw %lu "
"sector %#Lx len %u err no %d\n",
(unsigned long long)btrfs_ino(dip->inode), bio->bi_rw,
- (unsigned long long)bio->bi_sector, bio->bi_size, err);
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio->bi_iter.bi_size, err);
dip->errors = 1;

/*
@@ -7152,7 +7153,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
struct bio *bio;
struct bio *orig_bio = dip->orig_bio;
struct bio_vec *bvec = orig_bio->bi_io_vec;
- u64 start_sector = orig_bio->bi_sector;
+ u64 start_sector = orig_bio->bi_iter.bi_sector;
u64 file_offset = dip->logical_offset;
u64 submit_len = 0;
u64 map_length;
@@ -7160,14 +7161,14 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
int ret = 0;
int async_submit = 0;

- map_length = orig_bio->bi_size;
+ map_length = orig_bio->bi_iter.bi_size;
ret = btrfs_map_block(root->fs_info, rw, start_sector << 9,
&map_length, NULL, 0);
if (ret) {
bio_put(orig_bio);
return -EIO;
}
- if (map_length >= orig_bio->bi_size) {
+ if (map_length >= orig_bio->bi_iter.bi_size) {
bio = orig_bio;
goto submit;
}
@@ -7219,7 +7220,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;

- map_length = orig_bio->bi_size;
+ map_length = orig_bio->bi_iter.bi_size;
ret = btrfs_map_block(root->fs_info, rw,
start_sector << 9,
&map_length, NULL, 0);
@@ -7292,7 +7293,7 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio,
bvec++;
} while (bvec <= (dio_bio->bi_io_vec + dio_bio->bi_vcnt - 1));

- dip->disk_bytenr = (u64)dio_bio->bi_sector << 9;
+ dip->disk_bytenr = (u64)dio_bio->bi_iter.bi_sector << 9;
io_bio->bi_private = dip;
dip->errors = 0;
dip->orig_bio = io_bio;
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 0525e138..fc89bee 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1033,8 +1033,8 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,

/* see if we can add this page onto our existing bio */
if (last) {
- last_end = (u64)last->bi_sector << 9;
- last_end += last->bi_size;
+ last_end = (u64)last->bi_iter.bi_sector << 9;
+ last_end += last->bi_iter.bi_size;

/*
* we can't merge these if they are from different
@@ -1054,9 +1054,9 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
if (!bio)
return -ENOMEM;

- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
bio->bi_bdev = stripe->dev->bdev;
- bio->bi_sector = disk_start >> 9;
+ bio->bi_iter.bi_sector = disk_start >> 9;
set_bit(BIO_UPTODATE, &bio->bi_flags);

bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
@@ -1112,7 +1112,7 @@ static void index_rbio_pages(struct btrfs_raid_bio *rbio)

spin_lock_irq(&rbio->bio_list_lock);
bio_list_for_each(bio, &rbio->bio_list) {
- start = (u64)bio->bi_sector << 9;
+ start = (u64)bio->bi_iter.bi_sector << 9;
stripe_offset = start - rbio->raid_map[0];
page_index = stripe_offset >> PAGE_CACHE_SHIFT;

@@ -1273,7 +1273,7 @@ cleanup:
static int find_bio_stripe(struct btrfs_raid_bio *rbio,
struct bio *bio)
{
- u64 physical = bio->bi_sector;
+ u64 physical = bio->bi_iter.bi_sector;
u64 stripe_start;
int i;
struct btrfs_bio_stripe *stripe;
@@ -1299,7 +1299,7 @@ static int find_bio_stripe(struct btrfs_raid_bio *rbio,
static int find_logical_bio_stripe(struct btrfs_raid_bio *rbio,
struct bio *bio)
{
- u64 logical = bio->bi_sector;
+ u64 logical = bio->bi_iter.bi_sector;
u64 stripe_start;
int i;

@@ -1601,8 +1601,8 @@ static int plug_cmp(void *priv, struct list_head *a, struct list_head *b)
plug_list);
struct btrfs_raid_bio *rb = container_of(b, struct btrfs_raid_bio,
plug_list);
- u64 a_sector = ra->bio_list.head->bi_sector;
- u64 b_sector = rb->bio_list.head->bi_sector;
+ u64 a_sector = ra->bio_list.head->bi_iter.bi_sector;
+ u64 b_sector = rb->bio_list.head->bi_iter.bi_sector;

if (a_sector < b_sector)
return -1;
@@ -1693,7 +1693,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
return PTR_ERR(rbio);
}
bio_list_add(&rbio->bio_list, bio);
- rbio->bio_list_bytes = bio->bi_size;
+ rbio->bio_list_bytes = bio->bi_iter.bi_size;

/*
* don't plug on full rbios, just get them out the door
@@ -2047,7 +2047,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,

rbio->read_rebuild = 1;
bio_list_add(&rbio->bio_list, bio);
- rbio->bio_list_bytes = bio->bi_size;
+ rbio->bio_list_bytes = bio->bi_iter.bi_size;

rbio->faila = find_logical_bio_stripe(rbio, bio);
if (rbio->faila == -1) {
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 79bd479..1fadb35 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1303,7 +1303,7 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
continue;
}
bio->bi_bdev = page->dev->bdev;
- bio->bi_sector = page->physical >> 9;
+ bio->bi_iter.bi_sector = page->physical >> 9;
bio->bi_end_io = scrub_complete_bio_end_io;
bio->bi_private = &complete;

@@ -1435,7 +1435,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
if (!bio)
return -EIO;
bio->bi_bdev = page_bad->dev->bdev;
- bio->bi_sector = page_bad->physical >> 9;
+ bio->bi_iter.bi_sector = page_bad->physical >> 9;
bio->bi_end_io = scrub_complete_bio_end_io;
bio->bi_private = &complete;

@@ -1533,7 +1533,7 @@ again:
bio->bi_private = sbio;
bio->bi_end_io = scrub_wr_bio_end_io;
bio->bi_bdev = sbio->dev->bdev;
- bio->bi_sector = sbio->physical >> 9;
+ bio->bi_iter.bi_sector = sbio->physical >> 9;
sbio->err = 0;
} else if (sbio->physical + sbio->page_count * PAGE_SIZE !=
spage->physical_for_dev_replace ||
@@ -1939,7 +1939,7 @@ again:
bio->bi_private = sbio;
bio->bi_end_io = scrub_bio_end_io;
bio->bi_bdev = sbio->dev->bdev;
- bio->bi_sector = sbio->physical >> 9;
+ bio->bi_iter.bi_sector = sbio->physical >> 9;
sbio->err = 0;
} else if (sbio->physical + sbio->page_count * PAGE_SIZE !=
spage->physical ||
@@ -3316,8 +3316,8 @@ static int write_page_nocow(struct scrub_ctx *sctx,
}
bio->bi_private = &compl;
bio->bi_end_io = scrub_complete_bio_end_io;
- bio->bi_size = 0;
- bio->bi_sector = physical_for_dev_replace >> 9;
+ bio->bi_iter.bi_size = 0;
+ bio->bi_iter.bi_sector = physical_for_dev_replace >> 9;
bio->bi_bdev = dev->bdev;
ret = bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
if (ret != PAGE_CACHE_SIZE) {
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8bffb91..11f5ab7 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5170,7 +5170,7 @@ static int bio_size_ok(struct block_device *bdev, struct bio *bio,
if (!q->merge_bvec_fn)
return 1;

- bvm.bi_size = bio->bi_size - prev->bv_len;
+ bvm.bi_size = bio->bi_iter.bi_size - prev->bv_len;
if (q->merge_bvec_fn(q, &bvm, prev) < prev->bv_len)
return 0;
return 1;
@@ -5185,7 +5185,7 @@ static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
bio->bi_private = bbio;
btrfs_io_bio(bio)->stripe_index = dev_nr;
bio->bi_end_io = btrfs_end_bio;
- bio->bi_sector = physical >> 9;
+ bio->bi_iter.bi_sector = physical >> 9;
#ifdef DEBUG
{
struct rcu_string *name;
@@ -5223,7 +5223,7 @@ again:
while (bvec <= (first_bio->bi_io_vec + first_bio->bi_vcnt - 1)) {
if (bio_add_page(bio, bvec->bv_page, bvec->bv_len,
bvec->bv_offset) < bvec->bv_len) {
- u64 len = bio->bi_size;
+ u64 len = bio->bi_iter.bi_size;

atomic_inc(&bbio->stripes_pending);
submit_stripe_bio(root, bbio, bio, physical, dev_nr,
@@ -5245,7 +5245,7 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
bio->bi_private = bbio->private;
bio->bi_end_io = bbio->end_io;
btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
- bio->bi_sector = logical >> 9;
+ bio->bi_iter.bi_sector = logical >> 9;
kfree(bbio);
bio_endio(bio, -EIO);
}
@@ -5256,7 +5256,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
{
struct btrfs_device *dev;
struct bio *first_bio = bio;
- u64 logical = (u64)bio->bi_sector << 9;
+ u64 logical = (u64)bio->bi_iter.bi_sector << 9;
u64 length = 0;
u64 map_length;
u64 *raid_map = NULL;
@@ -5265,7 +5265,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
int total_devs = 1;
struct btrfs_bio *bbio = NULL;

- length = bio->bi_size;
+ length = bio->bi_iter.bi_size;
map_length = length;

ret = __btrfs_map_block(root->fs_info, rw, logical, &map_length, &bbio,
diff --git a/fs/buffer.c b/fs/buffer.c
index d2a4d1b..0f1e99b3 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2923,11 +2923,11 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh)
* let it through, and the IO layer will turn it into
* an EIO.
*/
- if (unlikely(bio->bi_sector >= maxsector))
+ if (unlikely(bio->bi_iter.bi_sector >= maxsector))
return;

- maxsector -= bio->bi_sector;
- bytes = bio->bi_size;
+ maxsector -= bio->bi_iter.bi_sector;
+ bytes = bio->bi_iter.bi_size;
if (likely((bytes >> 9) <= maxsector))
return;

@@ -2935,7 +2935,7 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh)
bytes = maxsector << 9;

/* Truncate the bio.. */
- bio->bi_size = bytes;
+ bio->bi_iter.bi_size = bytes;
bio->bi_io_vec[0].bv_len = bytes;

/* ..and clear the end of the buffer for reads */
@@ -2970,14 +2970,14 @@ int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
*/
bio = bio_alloc(GFP_NOIO, 1);

- bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
+ bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
bio->bi_io_vec[0].bv_page = bh->b_page;
bio->bi_io_vec[0].bv_len = bh->b_size;
bio->bi_io_vec[0].bv_offset = bh_offset(bh);

bio->bi_vcnt = 1;
- bio->bi_size = bh->b_size;
+ bio->bi_iter.bi_size = bh->b_size;

bio->bi_end_io = end_bio_bh_io_sync;
bio->bi_private = bh;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 7ab90f5..6a5de20 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -349,7 +349,7 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
bio = bio_alloc(GFP_KERNEL, nr_vecs);

bio->bi_bdev = bdev;
- bio->bi_sector = first_sector;
+ bio->bi_iter.bi_sector = first_sector;
if (dio->is_async)
bio->bi_end_io = dio_bio_end_aio;
else
@@ -654,7 +654,7 @@ static inline int dio_send_cur_page(struct dio *dio, struct dio_submit *sdio,
if (sdio->bio) {
loff_t cur_offset = sdio->cur_page_fs_offset;
loff_t bio_next_offset = sdio->logical_offset_in_bio +
- sdio->bio->bi_size;
+ sdio->bio->bi_iter.bi_size;

/*
* See whether this new request is contiguous with the old.
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 4acf1f7..b232538 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -225,7 +225,7 @@ static void ext4_end_bio(struct bio *bio, int error)
struct inode *inode;
int i;
int blocksize;
- sector_t bi_sector = bio->bi_sector;
+ sector_t bi_sector = bio->bi_iter.bi_sector;

BUG_ON(!io_end);
inode = io_end->inode;
@@ -323,7 +323,7 @@ static int io_submit_init(struct ext4_io_submit *io,
if (!io_end)
return -ENOMEM;
bio = bio_alloc(GFP_NOIO, min(nvecs, BIO_MAX_PAGES));
- bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
+ bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
bio->bi_private = io->io_end = io_end;
bio->bi_end_io = ext4_end_bio;
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 91ff93b..1dd4f114 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -371,7 +371,7 @@ int f2fs_readpage(struct f2fs_sb_info *sbi, struct page *page,
bio = f2fs_bio_alloc(bdev, 1);

/* Initialize the bio */
- bio->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
+ bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
bio->bi_end_io = read_end_io;

if (bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) < PAGE_CACHE_SIZE) {
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d8e84e4..51f17f6 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -735,7 +735,8 @@ static void submit_write_page(struct f2fs_sb_info *sbi, struct page *page,
alloc_new:
if (sbi->bio[type] == NULL) {
sbi->bio[type] = f2fs_bio_alloc(bdev, max_hw_blocks(sbi));
- sbi->bio[type]->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
+ sbi->bio[type]->bi_iter.bi_sector =
+ SECTOR_FROM_BLOCK(sbi, blk_addr);
/*
* The end_io will be assigned at the sumbission phase.
* Until then, let bio_add_page() merge consecutive IOs as much
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 68b4c8f..8bbc622 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -271,7 +271,7 @@ static struct bio *gfs2_log_alloc_bio(struct gfs2_sbd *sdp, u64 blkno)
nrvecs = max(nrvecs/2, 1U);
}

- bio->bi_sector = blkno * (sb->s_blocksize >> 9);
+ bio->bi_iter.bi_sector = blkno * (sb->s_blocksize >> 9);
bio->bi_bdev = sb->s_bdev;
bio->bi_end_io = gfs2_end_log_write;
bio->bi_private = sdp;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 60ede2a..0606aea 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -224,7 +224,7 @@ static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector, int silent)
lock_page(page);

bio = bio_alloc(GFP_NOFS, 1);
- bio->bi_sector = sector * (sb->s_blocksize >> 9);
+ bio->bi_iter.bi_sector = sector * (sb->s_blocksize >> 9);
bio->bi_bdev = sb->s_bdev;
bio_add_page(bio, page, PAGE_SIZE, 0);

diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index b51a607..5585a32 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -71,7 +71,7 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
sector &= ~((io_size >> HFSPLUS_SECTOR_SHIFT) - 1);

bio = bio_alloc(GFP_NOIO, 1);
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_bdev = sb->s_bdev;
bio->bi_end_io = hfsplus_end_io_sync;
bio->bi_private = &wait;
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index c57499d..c9b5cd6 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1998,14 +1998,14 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)

bio = bio_alloc(GFP_NOFS, 1);

- bio->bi_sector = bp->l_blkno << (log->l2bsize - 9);
+ bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
bio->bi_bdev = log->bdev;
bio->bi_io_vec[0].bv_page = bp->l_page;
bio->bi_io_vec[0].bv_len = LOGPSIZE;
bio->bi_io_vec[0].bv_offset = bp->l_offset;

bio->bi_vcnt = 1;
- bio->bi_size = LOGPSIZE;
+ bio->bi_iter.bi_size = LOGPSIZE;

bio->bi_end_io = lbmIODone;
bio->bi_private = bp;
@@ -2138,21 +2138,21 @@ static void lbmStartIO(struct lbuf * bp)
jfs_info("lbmStartIO\n");

bio = bio_alloc(GFP_NOFS, 1);
- bio->bi_sector = bp->l_blkno << (log->l2bsize - 9);
+ bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
bio->bi_bdev = log->bdev;
bio->bi_io_vec[0].bv_page = bp->l_page;
bio->bi_io_vec[0].bv_len = LOGPSIZE;
bio->bi_io_vec[0].bv_offset = bp->l_offset;

bio->bi_vcnt = 1;
- bio->bi_size = LOGPSIZE;
+ bio->bi_iter.bi_size = LOGPSIZE;

bio->bi_end_io = lbmIODone;
bio->bi_private = bp;

/* check if journaling to disk has been disabled */
if (log->no_integrity) {
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
lbmIODone(bio, 0);
} else {
submit_bio(WRITE_SYNC, bio);
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 6740d34..299d9cd 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -416,7 +416,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
* count from hitting zero before we're through
*/
inc_io(page);
- if (!bio->bi_size)
+ if (!bio->bi_iter.bi_size)
goto dump_bio;
submit_bio(WRITE, bio);
nr_underway++;
@@ -438,7 +438,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)

bio = bio_alloc(GFP_NOFS, 1);
bio->bi_bdev = inode->i_sb->s_bdev;
- bio->bi_sector = pblock << (inode->i_blkbits - 9);
+ bio->bi_iter.bi_sector = pblock << (inode->i_blkbits - 9);
bio->bi_end_io = metapage_write_end_io;
bio->bi_private = page;

@@ -452,7 +452,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
if (bio) {
if (bio_add_page(bio, page, bio_bytes, bio_offset) < bio_bytes)
goto add_failed;
- if (!bio->bi_size)
+ if (!bio->bi_iter.bi_size)
goto dump_bio;

submit_bio(WRITE, bio);
@@ -517,7 +517,8 @@ static int metapage_readpage(struct file *fp, struct page *page)

bio = bio_alloc(GFP_NOFS, 1);
bio->bi_bdev = inode->i_sb->s_bdev;
- bio->bi_sector = pblock << (inode->i_blkbits - 9);
+ bio->bi_iter.bi_sector =
+ pblock << (inode->i_blkbits - 9);
bio->bi_end_io = metapage_read_end_io;
bio->bi_private = page;
len = xlen << inode->i_blkbits;
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index 550475c..a1b161f 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -32,9 +32,9 @@ static int sync_request(struct page *page, struct block_device *bdev, int rw)
bio_vec.bv_len = PAGE_SIZE;
bio_vec.bv_offset = 0;
bio.bi_vcnt = 1;
- bio.bi_size = PAGE_SIZE;
+ bio.bi_iter.bi_size = PAGE_SIZE;
bio.bi_bdev = bdev;
- bio.bi_sector = page->index * (PAGE_SIZE >> 9);
+ bio.bi_iter.bi_sector = page->index * (PAGE_SIZE >> 9);
init_completion(&complete);
bio.bi_private = &complete;
bio.bi_end_io = request_complete;
@@ -107,9 +107,9 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
if (i >= max_pages) {
/* Block layer cannot split bios :( */
bio->bi_vcnt = i;
- bio->bi_size = i * PAGE_SIZE;
+ bio->bi_iter.bi_size = i * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = writeseg_end_io;
atomic_inc(&super->s_pending_writes);
@@ -134,9 +134,9 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
unlock_page(page);
}
bio->bi_vcnt = nr_pages;
- bio->bi_size = nr_pages * PAGE_SIZE;
+ bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = writeseg_end_io;
atomic_inc(&super->s_pending_writes);
@@ -199,9 +199,9 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
if (i >= max_pages) {
/* Block layer cannot split bios :( */
bio->bi_vcnt = i;
- bio->bi_size = i * PAGE_SIZE;
+ bio->bi_iter.bi_size = i * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = erase_end_io;
atomic_inc(&super->s_pending_writes);
@@ -220,9 +220,9 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
bio->bi_io_vec[i].bv_offset = 0;
}
bio->bi_vcnt = nr_pages;
- bio->bi_size = nr_pages * PAGE_SIZE;
+ bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = erase_end_io;
atomic_inc(&super->s_pending_writes);
diff --git a/fs/mpage.c b/fs/mpage.c
index 0face1c..92b125f 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -94,7 +94,7 @@ mpage_alloc(struct block_device *bdev,

if (bio) {
bio->bi_bdev = bdev;
- bio->bi_sector = first_sector;
+ bio->bi_iter.bi_sector = first_sector;
}
return bio;
}
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 434b93e..6f4e31d 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -134,8 +134,8 @@ bl_submit_bio(int rw, struct bio *bio)
if (bio) {
get_parallel(bio->bi_private);
dprintk("%s submitting %s bio %u@%llu\n", __func__,
- rw == READ ? "read" : "write",
- bio->bi_size, (unsigned long long)bio->bi_sector);
+ rw == READ ? "read" : "write", bio->bi_iter.bi_size,
+ (unsigned long long)bio->bi_iter.bi_sector);
submit_bio(rw, bio);
}
return NULL;
@@ -156,7 +156,8 @@ static struct bio *bl_alloc_init_bio(int npg, sector_t isect,
}

if (bio) {
- bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
+ bio->bi_iter.bi_sector = isect - be->be_f_offset +
+ be->be_v_offset;
bio->bi_bdev = be->be_mdev;
bio->bi_end_io = end_io;
bio->bi_private = par;
@@ -519,7 +520,7 @@ bl_do_readpage_sync(struct page *page, struct pnfs_block_extent *be,
isect = (page->index << PAGE_CACHE_SECTOR_SHIFT) +
(offset / SECTOR_SIZE);

- bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
+ bio->bi_iter.bi_sector = isect - be->be_f_offset + be->be_v_offset;
bio->bi_bdev = be->be_mdev;
bio->bi_end_io = bl_read_single_end_io;

diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index dc9a913..85dabcd 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -417,7 +417,8 @@ static struct bio *nilfs_alloc_seg_bio(struct the_nilfs *nilfs, sector_t start,
}
if (likely(bio)) {
bio->bi_bdev = nilfs->ns_bdev;
- bio->bi_sector = start << (nilfs->ns_blocksize_bits - 9);
+ bio->bi_iter.bi_sector =
+ start << (nilfs->ns_blocksize_bits - 9);
}
return bio;
}
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 42252bf..0e7bac5 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -421,7 +421,7 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg,
}

/* Must put everything in 512 byte sectors for the bio... */
- bio->bi_sector = (reg->hr_start_block + cs) << (bits - 9);
+ bio->bi_iter.bi_sector = (reg->hr_start_block + cs) << (bits - 9);
bio->bi_bdev = reg->hr_bdev;
bio->bi_private = wc;
bio->bi_end_io = o2hb_bio_end_io;
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 41a6950..cb4ea6a 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -415,7 +415,7 @@ xfs_alloc_ioend_bio(
struct bio *bio = bio_alloc(GFP_NOIO, nvecs);

ASSERT(bio->bi_private == NULL);
- bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
+ bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
return bio;
}
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 1b2472a..0af7f93 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1285,7 +1285,7 @@ next_chunk:

bio = bio_alloc(GFP_NOIO, nr_pages);
bio->bi_bdev = bp->b_target->bt_bdev;
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_end_io = xfs_buf_bio_end_io;
bio->bi_private = bp;

@@ -1307,7 +1307,7 @@ next_chunk:
total_nr_pages--;
}

- if (likely(bio->bi_size)) {
+ if (likely(bio->bi_iter.bi_size)) {
if (xfs_buf_is_vmapped(bp)) {
flush_kernel_vmap_range(bp->b_addr,
xfs_buf_vmap_len(bp));
diff --git a/include/linux/bio.h b/include/linux/bio.h
index ef24466..d321e63 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -62,19 +62,19 @@
* on highmem page vectors
*/
#define bio_iovec_idx(bio, idx) (&((bio)->bi_io_vec[(idx)]))
-#define bio_iovec(bio) bio_iovec_idx((bio), (bio)->bi_idx)
+#define bio_iovec(bio) bio_iovec_idx((bio), (bio)->bi_iter.bi_idx)
#define bio_page(bio) bio_iovec((bio))->bv_page
#define bio_offset(bio) bio_iovec((bio))->bv_offset
-#define bio_segments(bio) ((bio)->bi_vcnt - (bio)->bi_idx)
-#define bio_sectors(bio) ((bio)->bi_size >> 9)
-#define bio_end_sector(bio) ((bio)->bi_sector + bio_sectors((bio)))
+#define bio_segments(bio) ((bio)->bi_vcnt - (bio)->bi_iter.bi_idx)
+#define bio_sectors(bio) ((bio)->bi_iter.bi_size >> 9)
+#define bio_end_sector(bio) ((bio)->bi_iter.bi_sector + bio_sectors((bio)))

static inline unsigned int bio_cur_bytes(struct bio *bio)
{
if (bio->bi_vcnt)
return bio_iovec(bio)->bv_len;
else /* dataless requests such as discard */
- return bio->bi_size;
+ return bio->bi_iter.bi_size;
}

static inline void *bio_data(struct bio *bio)
@@ -108,7 +108,7 @@ static inline void *bio_data(struct bio *bio)
*/

#define __BVEC_END(bio) bio_iovec_idx((bio), (bio)->bi_vcnt - 1)
-#define __BVEC_START(bio) bio_iovec_idx((bio), (bio)->bi_idx)
+#define __BVEC_START(bio) bio_iovec_idx((bio), (bio)->bi_iter.bi_idx)

/* Default implementation of BIOVEC_PHYS_MERGEABLE */
#define __BIOVEC_PHYS_MERGEABLE(vec1, vec2) \
@@ -150,7 +150,7 @@ static inline void *bio_data(struct bio *bio)
i++)

#define bio_for_each_segment(bvl, bio, i) \
- for (i = (bio)->bi_idx; \
+ for (i = (bio)->bi_iter.bi_idx; \
bvl = bio_iovec_idx((bio), (i)), i < (bio)->bi_vcnt; \
i++)

@@ -364,7 +364,7 @@ static inline char *__bio_kmap_irq(struct bio *bio, unsigned short idx,
#define __bio_kunmap_irq(buf, flags) bvec_kunmap_irq(buf, flags)

#define bio_kmap_irq(bio, flags) \
- __bio_kmap_irq((bio), (bio)->bi_idx, (flags))
+ __bio_kmap_irq((bio), (bio)->bi_iter.bi_idx, (flags))
#define bio_kunmap_irq(buf,flags) __bio_kunmap_irq(buf, flags)

/*
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index fa1abeb..d46e8a6 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -28,13 +28,19 @@ struct bio_vec {
unsigned int bv_offset;
};

+struct bvec_iter {
+ sector_t bi_sector; /* device address in 512 byte
+ sectors */
+ unsigned int bi_size; /* residual I/O count */
+
+ unsigned int bi_idx; /* current index into bvl_vec */
+};
+
/*
* main unit of I/O for the block layer and lower layers (ie drivers and
* stacking drivers)
*/
struct bio {
- sector_t bi_sector; /* device address in 512 byte
- sectors */
struct bio *bi_next; /* request queue link */
struct block_device *bi_bdev;
unsigned long bi_flags; /* status, command, etc */
@@ -42,16 +48,13 @@ struct bio {
* top bits priority
*/

- unsigned short bi_vcnt; /* how many bio_vec's */
- unsigned short bi_idx; /* current index into bvl_vec */
+ struct bvec_iter bi_iter;

/* Number of segments in this BIO after
* physical address coalescing is performed.
*/
unsigned int bi_phys_segments;

- unsigned int bi_size; /* residual I/O count */
-
/*
* To keep track of the max segment size, we account for the
* sizes of the first and last mergeable segments in this bio.
@@ -74,11 +77,13 @@ struct bio {
struct bio_integrity_payload *bi_integrity; /* data integrity */
#endif

+ unsigned short bi_vcnt; /* how many bio_vec's */
+
/*
* Everything starting with bi_max_vecs will be preserved by bio_reset()
*/

- unsigned int bi_max_vecs; /* max bvl_vecs we can hold */
+ unsigned short bi_max_vecs; /* max bvl_vecs we can hold */

atomic_t bi_cnt; /* pin count */

diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index 3cc5a0b..827166f 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -29,10 +29,10 @@ DECLARE_EVENT_CLASS(bcache_request,
__entry->dev = bio->bi_bdev->bd_dev;
__entry->orig_major = s->d->disk->major;
__entry->orig_minor = s->d->disk->first_minor;
- __entry->sector = bio->bi_sector;
- __entry->orig_sector = bio->bi_sector - 16;
- __entry->nr_sector = bio->bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ __entry->sector = bio->bi_iter.bi_sector;
+ __entry->orig_sector = bio->bi_iter.bi_sector - 16;
+ __entry->nr_sector = bio_sectors(bio);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

@@ -75,9 +75,9 @@ DECLARE_EVENT_CLASS(bcache_bio,

TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ __entry->sector = bio->bi_iter.bi_sector;
+ __entry->nr_sector = bio_sectors(bio);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

@@ -208,10 +208,10 @@ DECLARE_EVENT_CLASS(bcache_cache_bio,
TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
__entry->orig_dev = orig_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->orig_sector = orig_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ __entry->nr_sector = bio_sectors(bio);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 60ae7c3..fbf9c5c 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -243,9 +243,9 @@ TRACE_EVENT(block_bio_bounce,
TP_fast_assign(
__entry->dev = bio->bi_bdev ?
bio->bi_bdev->bd_dev : 0;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

@@ -280,10 +280,10 @@ TRACE_EVENT(block_bio_complete,

TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
__entry->error = error;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
),

TP_printk("%d,%d %s %llu + %u [%d]",
@@ -308,9 +308,9 @@ DECLARE_EVENT_CLASS(block_bio_merge,

TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

@@ -375,9 +375,9 @@ TRACE_EVENT(block_bio_queue,

TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

@@ -403,7 +403,7 @@ DECLARE_EVENT_CLASS(block_get_rq,

TP_fast_assign(
__entry->dev = bio ? bio->bi_bdev->bd_dev : 0;
- __entry->sector = bio ? bio->bi_sector : 0;
+ __entry->sector = bio ? bio->bi_iter.bi_sector : 0;
__entry->nr_sector = bio ? bio_sectors(bio) : 0;
blk_fill_rwbs(__entry->rwbs,
bio ? bio->bi_rw : 0, __entry->nr_sector);
@@ -538,9 +538,9 @@ TRACE_EVENT(block_split,

TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->new_sector = new_sector;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),

@@ -579,11 +579,11 @@ TRACE_EVENT(block_bio_remap,

TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
+ __entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
__entry->old_dev = dev;
__entry->old_sector = from;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
),

TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 52ae548..a9531ad 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -611,8 +611,8 @@ TRACE_EVENT(f2fs_do_submit_bio,
__entry->dev = sb->s_dev;
__entry->btype = btype;
__entry->sync = sync;
- __entry->sector = bio->bi_sector;
- __entry->size = bio->bi_size;
+ __entry->sector = bio->bi_iter.bi_sector;
+ __entry->size = bio->bi_iter.bi_size;
),

TP_printk("dev = (%d,%d), type = %s, io = %s, sector = %lld, size = %u",
diff --git a/kernel/power/block_io.c b/kernel/power/block_io.c
index d09dd10..9a58bc2 100644
--- a/kernel/power/block_io.c
+++ b/kernel/power/block_io.c
@@ -32,7 +32,7 @@ static int submit(int rw, struct block_device *bdev, sector_t sector,
struct bio *bio;

bio = bio_alloc(__GFP_WAIT | __GFP_HIGH, 1);
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_bdev = bdev;
bio->bi_end_io = end_swap_bio_read;

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index b8b8560..2814a3e 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -764,8 +764,8 @@ static void blk_add_trace_bio(struct request_queue *q, struct bio *bio,
if (!error && !bio_flagged(bio, BIO_UPTODATE))
error = EIO;

- __blk_add_trace(bt, bio->bi_sector, bio->bi_size, bio->bi_rw, what,
- error, 0, NULL);
+ __blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
+ bio->bi_rw, what, error, 0, NULL);
}

static void blk_add_trace_bio_bounce(void *ignore,
@@ -868,8 +868,9 @@ static void blk_add_trace_split(void *ignore,
if (bt) {
__be64 rpdu = cpu_to_be64(pdu);

- __blk_add_trace(bt, bio->bi_sector, bio->bi_size, bio->bi_rw,
- BLK_TA_SPLIT, !bio_flagged(bio, BIO_UPTODATE),
+ __blk_add_trace(bt, bio->bi_iter.bi_sector,
+ bio->bi_iter.bi_size, bio->bi_rw, BLK_TA_SPLIT,
+ !bio_flagged(bio, BIO_UPTODATE),
sizeof(rpdu), &rpdu);
}
}
@@ -901,9 +902,9 @@ static void blk_add_trace_bio_remap(void *ignore,
r.device_to = cpu_to_be32(bio->bi_bdev->bd_dev);
r.sector_from = cpu_to_be64(from);

- __blk_add_trace(bt, bio->bi_sector, bio->bi_size, bio->bi_rw,
- BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE),
- sizeof(r), &r);
+ __blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
+ bio->bi_rw, BLK_TA_REMAP,
+ !bio_flagged(bio, BIO_UPTODATE), sizeof(r), &r);
}

/**
diff --git a/mm/page_io.c b/mm/page_io.c
index a8a3ef4..7617859 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -30,13 +30,13 @@ static struct bio *get_swap_bio(gfp_t gfp_flags,

bio = bio_alloc(gfp_flags, 1);
if (bio) {
- bio->bi_sector = map_swap_page(page, &bio->bi_bdev);
- bio->bi_sector <<= PAGE_SHIFT - 9;
+ bio->bi_iter.bi_sector = map_swap_page(page, &bio->bi_bdev);
+ bio->bi_iter.bi_sector <<= PAGE_SHIFT - 9;
bio->bi_io_vec[0].bv_page = page;
bio->bi_io_vec[0].bv_len = PAGE_SIZE;
bio->bi_io_vec[0].bv_offset = 0;
bio->bi_vcnt = 1;
- bio->bi_size = PAGE_SIZE;
+ bio->bi_iter.bi_size = PAGE_SIZE;
bio->bi_end_io = end_io;
}
return bio;
@@ -61,7 +61,7 @@ void end_swap_bio_write(struct bio *bio, int err)
printk(KERN_ALERT "Write-error on swap-device (%u:%u:%Lu)\n",
imajor(bio->bi_bdev->bd_inode),
iminor(bio->bi_bdev->bd_inode),
- (unsigned long long)bio->bi_sector);
+ (unsigned long long)bio->bi_iter.bi_sector);
ClearPageReclaim(page);
}
end_page_writeback(page);
@@ -79,7 +79,7 @@ void end_swap_bio_read(struct bio *bio, int err)
printk(KERN_ALERT "Read-error on swap-device (%u:%u:%Lu)\n",
imajor(bio->bi_bdev->bd_inode),
iminor(bio->bi_bdev->bd_inode),
- (unsigned long long)bio->bi_sector);
+ (unsigned long long)bio->bi_iter.bi_sector);
} else {
SetPageUptodate(page);
}
--
1.8.3.rc1

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