[GIT PULL] Core block changes for 4.8-rc

From: Jens Axboe
Date: Mon Jul 25 2016 - 16:20:13 EST

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Hi Linus,

Trying to flush out my two branches early this round, since particularly
one change is bound to cause merge conflicts with others. Since staging
is already merged, the lloop.c will conflict with the deleted file.
Apart from that, two minor conflicts that should be easy enough to
resolve.

This pull request contains:

- The big change is the cleanup from Mike Christie, cleaning up our uses
of command types and modified flags. This is what will throw some
merge conflicts.

- Regression fix for the above for btrfs, from Vincent.

- Following up to the above, better packing of struct request from
Christoph.

- A 2038 fix for blktrace from Arnd.

- A few trivial/spelling fixes from Bart Van Assche.

- A front merge check fix from Damien, which could cause issues on SMR
drives.

- Atari partition fix from Gabriel.

- Convert cfq to highres timers, since jiffies isn't granular enough for
some devices these days. From Jan and Jeff.

- CFQ priority boost fix idle classes, from me.

- Cleanup series from Ming, improving our bio/bvec iteration.

- A direct issue fix for blk-mq from Omar.

- Fix for plug merging not involving the IO scheduler, like we do for
other types of merges. From Tahsin.

- Expose DAX type internally and through sysfs. From Toshi and Yigal.

Please pull!

git://git.kernel.dk/linux-block.git for-4.8/core

----------------------------------------------------------------
Arnd Bergmann (1):
blktrace: avoid using timespec

Bart Van Assche (4):
block/partition-generic.c: Remove a set-but-not-used variable
block/bio-integrity.c: Add #include "blk.h"
block/blk-cgroup.c: Declare local symbols static
block: Fix spelling in a source code comment

Christoph Hellwig (1):
block: better packing for struct request

Damien Le Moal (1):
block: Fix front merge check

Gabriel Krisman Bertazi (1):
block: atari: Return early for unsupported sector size

Jan Kara (5):
cfq-iosched: Convert to use highres timers
block: Convert fifo_time from ulong to u64
cfq-iosched: Convert slice_resid from u64 to s64
cfq-iosched: Fix regression in bonnie++ rewrite performance
cfq-iosched: Charge at least 1 jiffie instead of 1 ns

Jeff Moyer (2):
cfq-iosched: Convert from jiffies to nanoseconds
cfq-iosched: Expose microsecond interfaces

Jens Axboe (1):
cfq-iosched: temporarily boost queue priority for idle classes

Masanari Iida (1):
Doc: block: Fix a typo in queue-sysfs.txt

Mike Christie (46):
block/fs/drivers: remove rw argument from submit_bio
block: add REQ_OP definitions and helpers
fs: have submit_bh users pass in op and flags separately
fs: have ll_rw_block users pass in op and flags separately
block, drivers, cgroup: use op_is_write helper instead of checking for REQ_WRITE
dm: use op_is_write instead of checking for REQ_WRITE
bcache: use op_is_write instead of checking for REQ_WRITE
block, fs, mm, drivers: use bio set/get op accessors
block discard: use bio set op accessor
direct-io: use bio set/get op accessors
btrfs: have submit_one_bio users use bio op accessors
btrfs: use bio op accessors
btrfs: update __btrfs_map_block for REQ_OP transition
btrfs: use bio fields for op and flags
f2fs: use bio op accessors
gfs2: use bio op accessors
xfs: use bio op accessors
hfsplus: use bio op accessors
mpage: use bio op accessors
nilfs: use bio op accessors
ocfs2: use bio op accessors
pm: use bio op accessors
dm: pass dm stats data dir instead of bi_rw
dm: use bio op accessors
bcache: use bio op accessors
drbd: use bio op accessors
md: use bio op accessors
target: use bio op accessors
xen: use bio op accessors
block: copy bio op to request op
block: prepare request creation/destruction code to use REQ_OPs
block: prepare mq request creation to use REQ_OPs
block: prepare elevator to use REQ_OPs.
blkg_rwstat: separate op from flags
block: convert merge/insert code to check for REQ_OPs.
block: convert is_sync helpers to use REQ_OPs.
drivers: use req op accessor
blktrace: use op accessors
ide cd: do not set REQ_WRITE on requests.
block: move bio io prio to a new field
block, drivers, fs: shrink bi_rw from long to int
block, fs, drivers: remove REQ_OP compat defs and related code
block, drivers: add REQ_OP_FLUSH operation
block: do not use REQ_FLUSH for tracking flush support
block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH
ext4: use bio op helprs in ext4 crypto code

Ming Lei (8):
block: move bvec iterator into include/linux/bvec.h
block: move two bvec structure into bvec.h
block: mark 1st parameter of bvec_iter_advance as const
iov_iter: use bvec iterator to implement iterate_bvec()
fs: xfs: replace BIO_MAX_SECTORS with BIO_MAX_PAGES
block: bio: remove BIO_MAX_SECTORS
block: drbd: avoid to use BIO_MAX_SIZE
block: bio: kill BIO_MAX_SIZE

Omar Sandoval (1):
blk-mq: actually hook up defer list when running requests

Tahsin Erdogan (1):
block: do not merge requests without consulting with io scheduler

Toshi Kani (1):
block: add QUEUE_FLAG_DAX for devices to advertise their DAX support

Vincent Stehlé (1):
Btrfs: fix comparison in __btrfs_map_block()

Yigal Korman (1):
block: expose QUEUE_FLAG_DAX in sysfs

Documentation/block/queue-sysfs.txt | 2 +-
Documentation/block/writeback_cache_control.txt | 28 +-
Documentation/device-mapper/log-writes.txt | 10 +-
arch/um/drivers/ubd_kern.c | 2 +-
block/bio-integrity.c | 1 +
block/bio.c | 20 +-
block/blk-cgroup.c | 4 +-
block/blk-core.c | 96 +++---
block/blk-exec.c | 2 +-
block/blk-flush.c | 23 +-
block/blk-lib.c | 31 +-
block/blk-map.c | 2 +-
block/blk-merge.c | 36 +-
block/blk-mq.c | 42 +--
block/blk-sysfs.c | 11 +
block/cfq-iosched.c | 432 ++++++++++++++----------
block/deadline-iosched.c | 7 +-
block/elevator.c | 29 +-
block/partition-generic.c | 3 -
block/partitions/atari.c | 7 +
drivers/ata/libata-scsi.c | 2 +-
drivers/block/brd.c | 6 +-
drivers/block/drbd/drbd_actlog.c | 32 +-
drivers/block/drbd/drbd_bitmap.c | 8 +-
drivers/block/drbd/drbd_int.h | 8 +-
drivers/block/drbd/drbd_main.c | 20 +-
drivers/block/drbd/drbd_protocol.h | 2 +-
drivers/block/drbd/drbd_receiver.c | 36 +-
drivers/block/drbd/drbd_req.c | 2 +-
drivers/block/drbd/drbd_worker.c | 7 +-
drivers/block/floppy.c | 3 +-
drivers/block/loop.c | 14 +-
drivers/block/mtip32xx/mtip32xx.c | 2 +-
drivers/block/nbd.c | 4 +-
drivers/block/osdblk.c | 2 +-
drivers/block/pktcdvd.c | 4 +-
drivers/block/ps3disk.c | 4 +-
drivers/block/rbd.c | 4 +-
drivers/block/rsxx/dma.c | 2 +-
drivers/block/skd_main.c | 2 +-
drivers/block/umem.c | 2 +-
drivers/block/virtio_blk.c | 2 +-
drivers/block/xen-blkback/blkback.c | 27 +-
drivers/block/xen-blkfront.c | 65 ++--
drivers/block/zram/zram_drv.c | 2 +-
drivers/ide/ide-cd_ioctl.c | 3 -
drivers/ide/ide-disk.c | 2 +-
drivers/ide/ide-floppy.c | 2 +-
drivers/lightnvm/rrpc.c | 6 +-
drivers/md/bcache/btree.c | 4 +-
drivers/md/bcache/debug.c | 6 +-
drivers/md/bcache/io.c | 2 +-
drivers/md/bcache/journal.c | 9 +-
drivers/md/bcache/movinggc.c | 2 +-
drivers/md/bcache/request.c | 28 +-
drivers/md/bcache/super.c | 26 +-
drivers/md/bcache/writeback.c | 4 +-
drivers/md/bitmap.c | 6 +-
drivers/md/dm-bufio.c | 9 +-
drivers/md/dm-cache-target.c | 18 +-
drivers/md/dm-crypt.c | 11 +-
drivers/md/dm-era-target.c | 4 +-
drivers/md/dm-flakey.c | 2 +-
drivers/md/dm-io.c | 57 ++--
drivers/md/dm-kcopyd.c | 11 +-
drivers/md/dm-log-writes.c | 13 +-
drivers/md/dm-log.c | 5 +-
drivers/md/dm-raid.c | 5 +-
drivers/md/dm-raid1.c | 22 +-
drivers/md/dm-region-hash.c | 6 +-
drivers/md/dm-snap-persistent.c | 24 +-
drivers/md/dm-snap.c | 6 +-
drivers/md/dm-stats.c | 9 +-
drivers/md/dm-stripe.c | 6 +-
drivers/md/dm-thin.c | 22 +-
drivers/md/dm.c | 45 +--
drivers/md/linear.c | 4 +-
drivers/md/md.c | 18 +-
drivers/md/md.h | 5 +-
drivers/md/multipath.c | 2 +-
drivers/md/raid0.c | 4 +-
drivers/md/raid1.c | 38 +--
drivers/md/raid10.c | 52 +--
drivers/md/raid5-cache.c | 33 +-
drivers/md/raid5.c | 48 +--
drivers/mmc/card/block.c | 11 +-
drivers/mmc/card/queue.c | 6 +-
drivers/mmc/card/queue.h | 6 +-
drivers/mtd/mtd_blkdevs.c | 4 +-
drivers/nvdimm/pmem.c | 1 +
drivers/nvme/host/core.c | 4 +-
drivers/nvme/host/nvme.h | 4 +-
drivers/s390/block/dcssblk.c | 1 +
drivers/scsi/osd/osd_initiator.c | 12 +-
drivers/scsi/sd.c | 20 +-
drivers/staging/lustre/lustre/llite/lloop.c | 6 +-
drivers/target/target_core_iblock.c | 41 +--
drivers/target/target_core_pscsi.c | 2 +-
fs/block_dev.c | 5 +-
fs/btrfs/check-integrity.c | 61 ++--
fs/btrfs/check-integrity.h | 6 +-
fs/btrfs/compression.c | 17 +-
fs/btrfs/ctree.h | 2 +-
fs/btrfs/disk-io.c | 43 ++-
fs/btrfs/disk-io.h | 2 +-
fs/btrfs/extent-tree.c | 2 +-
fs/btrfs/extent_io.c | 91 +++--
fs/btrfs/extent_io.h | 8 +-
fs/btrfs/inode.c | 70 ++--
fs/btrfs/raid56.c | 17 +-
fs/btrfs/scrub.c | 15 +-
fs/btrfs/volumes.c | 91 ++---
fs/btrfs/volumes.h | 6 +-
fs/buffer.c | 69 ++--
fs/crypto/crypto.c | 3 +-
fs/direct-io.c | 35 +-
fs/exofs/ore.c | 2 +-
fs/ext4/balloc.c | 2 +-
fs/ext4/crypto.c | 3 +-
fs/ext4/ialloc.c | 2 +-
fs/ext4/inode.c | 8 +-
fs/ext4/mmp.c | 4 +-
fs/ext4/namei.c | 3 +-
fs/ext4/page-io.c | 7 +-
fs/ext4/readpage.c | 9 +-
fs/ext4/super.c | 2 +-
fs/f2fs/checkpoint.c | 10 +-
fs/f2fs/data.c | 47 +--
fs/f2fs/f2fs.h | 5 +-
fs/f2fs/gc.c | 9 +-
fs/f2fs/inline.c | 3 +-
fs/f2fs/node.c | 8 +-
fs/f2fs/segment.c | 14 +-
fs/f2fs/trace.c | 7 +-
fs/fat/misc.c | 2 +-
fs/gfs2/bmap.c | 4 +-
fs/gfs2/dir.c | 2 +-
fs/gfs2/log.c | 8 +-
fs/gfs2/lops.c | 12 +-
fs/gfs2/lops.h | 2 +-
fs/gfs2/meta_io.c | 18 +-
fs/gfs2/ops_fstype.c | 3 +-
fs/gfs2/quota.c | 2 +-
fs/hfsplus/hfsplus_fs.h | 2 +-
fs/hfsplus/part_tbl.c | 5 +-
fs/hfsplus/super.c | 6 +-
fs/hfsplus/wrapper.c | 15 +-
fs/isofs/compress.c | 2 +-
fs/jbd2/commit.c | 6 +-
fs/jbd2/journal.c | 10 +-
fs/jbd2/recovery.c | 4 +-
fs/jfs/jfs_logmgr.c | 6 +-
fs/jfs/jfs_metapage.c | 10 +-
fs/logfs/dev_bdev.c | 17 +-
fs/mpage.c | 41 +--
fs/nfs/blocklayout/blocklayout.c | 22 +-
fs/nilfs2/btnode.c | 6 +-
fs/nilfs2/btnode.h | 2 +-
fs/nilfs2/btree.c | 6 +-
fs/nilfs2/gcinode.c | 5 +-
fs/nilfs2/mdt.c | 11 +-
fs/nilfs2/segbuf.c | 18 +-
fs/ntfs/aops.c | 6 +-
fs/ntfs/compress.c | 2 +-
fs/ntfs/file.c | 2 +-
fs/ntfs/logfile.c | 2 +-
fs/ntfs/mft.c | 4 +-
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/buffer_head_io.c | 8 +-
fs/ocfs2/cluster/heartbeat.c | 14 +-
fs/ocfs2/super.c | 2 +-
fs/reiserfs/inode.c | 4 +-
fs/reiserfs/journal.c | 14 +-
fs/reiserfs/stree.c | 4 +-
fs/reiserfs/super.c | 2 +-
fs/squashfs/block.c | 4 +-
fs/udf/dir.c | 2 +-
fs/udf/directory.c | 2 +-
fs/udf/inode.c | 2 +-
fs/ufs/balloc.c | 2 +-
fs/ufs/util.c | 2 +-
fs/xfs/xfs_aops.c | 11 +-
fs/xfs/xfs_buf.c | 32 +-
include/linux/bio.h | 83 +----
include/linux/blk-cgroup.h | 13 +-
include/linux/blk_types.h | 68 ++--
include/linux/blkdev.h | 62 ++--
include/linux/blktrace_api.h | 2 +-
include/linux/buffer_head.h | 11 +-
include/linux/bvec.h | 96 ++++++
include/linux/dm-io.h | 3 +-
include/linux/elevator.h | 15 +-
include/linux/fs.h | 43 ++-
include/trace/events/bcache.h | 12 +-
include/trace/events/block.h | 31 +-
include/trace/events/f2fs.h | 37 +-
kernel/power/swap.c | 33 +-
kernel/trace/blktrace.c | 77 +++--
lib/iov_iter.c | 45 +--
mm/page_io.c | 10 +-
200 files changed, 1920 insertions(+), 1526 deletions(-)
create mode 100644 include/linux/bvec.h

--
Jens Axboe

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