[PATCH 4.9 076/119] fs: add i_blocksize()

From: Greg Kroah-Hartman
Date: Mon Jun 12 2017 - 11:35:52 EST

4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Fabian Frederick <fabf@xxxxxxxxx>

commit 93407472a21b82f39c955ea7787e5bc7da100642 upstream.

Replace all 1 << inode->i_blkbits and (1 << inode->i_blkbits) in fs
branch.

This patch also fixes multiple checkpatch warnings: WARNING: Prefer
'unsigned int' to bare use of 'unsigned'

Thanks to Andrew Morton for suggesting more appropriate function instead
of macro.

[geliangtang@xxxxxxxxx: truncate: use i_blocksize()]
Link: http://lkml.kernel.org/r/9c8b2cd83c8f5653805d43debde9fa8817e02fc4.1484895804.git.geliangtang@xxxxxxxxx
Link: http://lkml.kernel.org/r/1481319905-10126-1-git-send-email-fabf@xxxxxxxxx
Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
fs/block_dev.c | 2 +-
fs/btrfs/file.c | 2 +-
fs/buffer.c | 12 ++++++------
fs/ceph/addr.c | 2 +-
fs/direct-io.c | 2 +-
fs/ext4/inode.c | 8 ++++----
fs/ext4/mballoc.c | 2 +-
fs/ext4/move_extent.c | 2 +-
fs/iomap.c | 4 ++--
fs/jfs/super.c | 4 ++--
fs/mpage.c | 2 +-
fs/nfsd/blocklayout.c | 6 +++---
fs/nilfs2/btnode.c | 2 +-
fs/nilfs2/inode.c | 4 ++--
fs/nilfs2/mdt.c | 4 ++--
fs/nilfs2/segment.c | 2 +-
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/file.c | 2 +-
fs/orangefs/orangefs-utils.c | 4 ++--
fs/reiserfs/file.c | 2 +-
fs/reiserfs/inode.c | 2 +-
fs/stat.c | 2 +-
fs/udf/inode.c | 2 +-
fs/xfs/xfs_aops.c | 16 ++++++++--------
fs/xfs/xfs_file.c | 4 ++--
include/linux/fs.h | 5 +++++
mm/truncate.c | 2 +-
27 files changed, 54 insertions(+), 49 deletions(-)

--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -713,7 +713,7 @@ struct block_device *bdget(dev_t dev)
bdev->bd_contains = NULL;
bdev->bd_super = NULL;
bdev->bd_inode = inode;
- bdev->bd_block_size = (1 << inode->i_blkbits);
+ bdev->bd_block_size = i_blocksize(inode);
bdev->bd_part_count = 0;
bdev->bd_invalidated = 0;
inode->i_mode = S_IFBLK;
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2842,7 +2842,7 @@ static long btrfs_fallocate(struct file
if (!ret)
ret = btrfs_prealloc_file_range(inode, mode,
range->start,
- range->len, 1 << inode->i_blkbits,
+ range->len, i_blocksize(inode),
offset + len, &alloc_hint);
else
btrfs_free_reserved_data_space(inode, range->start,
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2353,7 +2353,7 @@ static int cont_expand_zero(struct file
loff_t pos, loff_t *bytes)
{
struct inode *inode = mapping->host;
- unsigned blocksize = 1 << inode->i_blkbits;
+ unsigned int blocksize = i_blocksize(inode);
struct page *page;
void *fsdata;
pgoff_t index, curidx;
@@ -2433,8 +2433,8 @@ int cont_write_begin(struct file *file,
get_block_t *get_block, loff_t *bytes)
{
struct inode *inode = mapping->host;
- unsigned blocksize = 1 << inode->i_blkbits;
- unsigned zerofrom;
+ unsigned int blocksize = i_blocksize(inode);
+ unsigned int zerofrom;
int err;

err = cont_expand_zero(file, mapping, pos, bytes);
@@ -2796,7 +2796,7 @@ int nobh_truncate_page(struct address_sp
struct buffer_head map_bh;
int err;

- blocksize = 1 << inode->i_blkbits;
+ blocksize = i_blocksize(inode);
length = offset & (blocksize - 1);

/* Block boundary? Nothing to do */
@@ -2874,7 +2874,7 @@ int block_truncate_page(struct address_s
struct buffer_head *bh;
int err;

- blocksize = 1 << inode->i_blkbits;
+ blocksize = i_blocksize(inode);
length = offset & (blocksize - 1);

/* Block boundary? Nothing to do */
@@ -2986,7 +2986,7 @@ sector_t generic_block_bmap(struct addre
struct inode *inode = mapping->host;
tmp.b_state = 0;
tmp.b_blocknr = 0;
- tmp.b_size = 1 << inode->i_blkbits;
+ tmp.b_size = i_blocksize(inode);
get_block(inode, block, &tmp, 0);
return tmp.b_blocknr;
}
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -745,7 +745,7 @@ static int ceph_writepages_start(struct
struct pagevec pvec;
int done = 0;
int rc = 0;
- unsigned wsize = 1 << inode->i_blkbits;
+ unsigned int wsize = i_blocksize(inode);
struct ceph_osd_request *req = NULL;
int do_sync = 0;
loff_t snap_size, i_size;
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -587,7 +587,7 @@ static int dio_set_defer_completion(stru
/*
* Call into the fs to map some more disk blocks. We record the current number
* of available blocks at sdio->blocks_available. These are in units of the
- * fs blocksize, (1 << inode->i_blkbits).
+ * fs blocksize, i_blocksize(inode).
*
* The fs is allowed to map lots of blocks at once. If it wants to do that,
* it uses the passed inode-relative block number as the file offset, as usual.
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2205,7 +2205,7 @@ static int mpage_process_page_bufs(struc
{
struct inode *inode = mpd->inode;
int err;
- ext4_lblk_t blocks = (i_size_read(inode) + (1 << inode->i_blkbits) - 1)
+ ext4_lblk_t blocks = (i_size_read(inode) + i_blocksize(inode) - 1)
>> inode->i_blkbits;

do {
@@ -3454,14 +3454,14 @@ static ssize_t ext4_direct_IO_write(stru
* writes need zeroing either because they can race with page
* faults or because they use partial blocks.
*/
- if (round_down(offset, 1<<inode->i_blkbits) >= inode->i_size &&
+ if (round_down(offset, i_blocksize(inode)) >= inode->i_size &&
ext4_aligned_io(inode, offset, count))
get_block_func = ext4_dio_get_block;
else
get_block_func = ext4_dax_get_block;
dio_flags = DIO_LOCKING;
} else if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS) ||
- round_down(offset, 1 << inode->i_blkbits) >= inode->i_size) {
+ round_down(offset, i_blocksize(inode)) >= inode->i_size) {
get_block_func = ext4_dio_get_block;
dio_flags = DIO_LOCKING | DIO_SKIP_HOLES;
} else if (is_sync_kiocb(iocb)) {
@@ -5048,7 +5048,7 @@ static void ext4_wait_for_tail_page_comm
* do. We do the check mainly to optimize the common PAGE_SIZE ==
* blocksize case
*/
- if (offset > PAGE_SIZE - (1 << inode->i_blkbits))
+ if (offset > PAGE_SIZE - i_blocksize(inode))
return;
while (1) {
page = find_lock_page(inode->i_mapping,
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -838,7 +838,7 @@ static int ext4_mb_init_cache(struct pag
inode = page->mapping->host;
sb = inode->i_sb;
ngroups = ext4_get_groups_count(sb);
- blocksize = 1 << inode->i_blkbits;
+ blocksize = i_blocksize(inode);
blocks_per_page = PAGE_SIZE / blocksize;

groups_per_page = blocks_per_page >> 1;
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -187,7 +187,7 @@ mext_page_mkuptodate(struct page *page,
if (PageUptodate(page))
return 0;

- blocksize = 1 << inode->i_blkbits;
+ blocksize = i_blocksize(inode);
if (!page_has_buffers(page))
create_empty_buffers(page, blocksize, 0);

--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -419,8 +419,8 @@ int
iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
struct iomap_ops *ops)
{
- unsigned blocksize = (1 << inode->i_blkbits);
- unsigned off = pos & (blocksize - 1);
+ unsigned int blocksize = i_blocksize(inode);
+ unsigned int off = pos & (blocksize - 1);

/* Block boundary? Nothing to do */
if (!off)
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -758,7 +758,7 @@ static ssize_t jfs_quota_read(struct sup
sb->s_blocksize - offset : toread;

tmp_bh.b_state = 0;
- tmp_bh.b_size = 1 << inode->i_blkbits;
+ tmp_bh.b_size = i_blocksize(inode);
err = jfs_get_block(inode, blk, &tmp_bh, 0);
if (err)
return err;
@@ -798,7 +798,7 @@ static ssize_t jfs_quota_write(struct su
sb->s_blocksize - offset : towrite;

tmp_bh.b_state = 0;
- tmp_bh.b_size = 1 << inode->i_blkbits;
+ tmp_bh.b_size = i_blocksize(inode);
err = jfs_get_block(inode, blk, &tmp_bh, 1);
if (err)
goto out;
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -115,7 +115,7 @@ map_buffer_to_page(struct page *page, st
SetPageUptodate(page);
return;
}
- create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+ create_empty_buffers(page, i_blocksize(inode), 0);
}
head = page_buffers(page);
page_bh = head;
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -23,7 +23,7 @@ nfsd4_block_proc_layoutget(struct inode
{
struct nfsd4_layout_seg *seg = &args->lg_seg;
struct super_block *sb = inode->i_sb;
- u32 block_size = (1 << inode->i_blkbits);
+ u32 block_size = i_blocksize(inode);
struct pnfs_block_extent *bex;
struct iomap iomap;
u32 device_generation = 0;
@@ -180,7 +180,7 @@ nfsd4_block_proc_layoutcommit(struct ino
int nr_iomaps;

nr_iomaps = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout,
- lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits);
+ lcp->lc_up_len, &iomaps, i_blocksize(inode));
if (nr_iomaps < 0)
return nfserrno(nr_iomaps);

@@ -372,7 +372,7 @@ nfsd4_scsi_proc_layoutcommit(struct inod
int nr_iomaps;

nr_iomaps = nfsd4_scsi_decode_layoutupdate(lcp->lc_up_layout,
- lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits);
+ lcp->lc_up_len, &iomaps, i_blocksize(inode));
if (nr_iomaps < 0)
return nfserrno(nr_iomaps);

--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -50,7 +50,7 @@ nilfs_btnode_create_block(struct address
brelse(bh);
BUG();
}
- memset(bh->b_data, 0, 1 << inode->i_blkbits);
+ memset(bh->b_data, 0, i_blocksize(inode));
bh->b_bdev = inode->i_sb->s_bdev;
bh->b_blocknr = blocknr;
set_buffer_mapped(bh);
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -51,7 +51,7 @@ void nilfs_inode_add_blocks(struct inode
{
struct nilfs_root *root = NILFS_I(inode)->i_root;

- inode_add_bytes(inode, (1 << inode->i_blkbits) * n);
+ inode_add_bytes(inode, i_blocksize(inode) * n);
if (root)
atomic64_add(n, &root->blocks_count);
}
@@ -60,7 +60,7 @@ void nilfs_inode_sub_blocks(struct inode
{
struct nilfs_root *root = NILFS_I(inode)->i_root;

- inode_sub_bytes(inode, (1 << inode->i_blkbits) * n);
+ inode_sub_bytes(inode, i_blocksize(inode) * n);
if (root)
atomic64_sub(n, &root->blocks_count);
}
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -57,7 +57,7 @@ nilfs_mdt_insert_new_block(struct inode
set_buffer_mapped(bh);

kaddr = kmap_atomic(bh->b_page);
- memset(kaddr + bh_offset(bh), 0, 1 << inode->i_blkbits);
+ memset(kaddr + bh_offset(bh), 0, i_blocksize(inode));
if (init_block)
init_block(inode, bh, kaddr);
flush_dcache_page(bh->b_page);
@@ -501,7 +501,7 @@ void nilfs_mdt_set_entry_size(struct ino
struct nilfs_mdt_info *mi = NILFS_MDT(inode);

mi->mi_entry_size = entry_size;
- mi->mi_entries_per_block = (1 << inode->i_blkbits) / entry_size;
+ mi->mi_entries_per_block = i_blocksize(inode) / entry_size;
mi->mi_first_entry_offset = DIV_ROUND_UP(header_size, entry_size);
}

--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -723,7 +723,7 @@ static size_t nilfs_lookup_dirty_data_bu

lock_page(page);
if (!page_has_buffers(page))
- create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+ create_empty_buffers(page, i_blocksize(inode), 0);
unlock_page(page);

bh = head = page_buffers(page);
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -599,7 +599,7 @@ int ocfs2_map_page_blocks(struct page *p
int ret = 0;
struct buffer_head *head, *bh, *wait[2], **wait_bh = wait;
unsigned int block_end, block_start;
- unsigned int bsize = 1 << inode->i_blkbits;
+ unsigned int bsize = i_blocksize(inode);

if (!page_has_buffers(page))
create_empty_buffers(page, bsize, 0);
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -808,7 +808,7 @@ static int ocfs2_write_zero_page(struct
/* We know that zero_from is block aligned */
for (block_start = zero_from; block_start < zero_to;
block_start = block_end) {
- block_end = block_start + (1 << inode->i_blkbits);
+ block_end = block_start + i_blocksize(inode);

/*
* block_start is block-aligned. Bump it by one to force
--- a/fs/orangefs/orangefs-utils.c
+++ b/fs/orangefs/orangefs-utils.c
@@ -306,7 +306,7 @@ int orangefs_inode_getattr(struct inode
break;
case S_IFDIR:
inode->i_size = PAGE_SIZE;
- orangefs_inode->blksize = (1 << inode->i_blkbits);
+ orangefs_inode->blksize = i_blocksize(inode);
spin_lock(&inode->i_lock);
inode_set_bytes(inode, inode->i_size);
spin_unlock(&inode->i_lock);
@@ -316,7 +316,7 @@ int orangefs_inode_getattr(struct inode
if (new) {
inode->i_size = (loff_t)strlen(new_op->
downcall.resp.getattr.link_target);
- orangefs_inode->blksize = (1 << inode->i_blkbits);
+ orangefs_inode->blksize = i_blocksize(inode);
ret = strscpy(orangefs_inode->link_target,
new_op->downcall.resp.getattr.link_target,
ORANGEFS_NAME_MAX);
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -189,7 +189,7 @@ int reiserfs_commit_page(struct inode *i
int ret = 0;

th.t_trans_id = 0;
- blocksize = 1 << inode->i_blkbits;
+ blocksize = i_blocksize(inode);

if (logit) {
reiserfs_write_lock(s);
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -524,7 +524,7 @@ static int reiserfs_get_blocks_direct_io
* referenced in convert_tail_for_hole() that may be called from
* reiserfs_get_block()
*/
- bh_result->b_size = (1 << inode->i_blkbits);
+ bh_result->b_size = i_blocksize(inode);

ret = reiserfs_get_block(inode, iblock, bh_result,
create | GET_BLOCK_NO_DANGLE);
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -31,7 +31,7 @@ void generic_fillattr(struct inode *inod
stat->atime = inode->i_atime;
stat->mtime = inode->i_mtime;
stat->ctime = inode->i_ctime;
- stat->blksize = (1 << inode->i_blkbits);
+ stat->blksize = i_blocksize(inode);
stat->blocks = inode->i_blocks;
}

--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1214,7 +1214,7 @@ int udf_setsize(struct inode *inode, lof
{
int err;
struct udf_inode_info *iinfo;
- int bsize = 1 << inode->i_blkbits;
+ int bsize = i_blocksize(inode);

if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)))
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -108,9 +108,9 @@ xfs_finish_page_writeback(
unsigned int bsize;

ASSERT(bvec->bv_offset < PAGE_SIZE);
- ASSERT((bvec->bv_offset & ((1 << inode->i_blkbits) - 1)) == 0);
+ ASSERT((bvec->bv_offset & (i_blocksize(inode) - 1)) == 0);
ASSERT(end < PAGE_SIZE);
- ASSERT((bvec->bv_len & ((1 << inode->i_blkbits) - 1)) == 0);
+ ASSERT((bvec->bv_len & (i_blocksize(inode) - 1)) == 0);

bh = head = page_buffers(bvec->bv_page);

@@ -349,7 +349,7 @@ xfs_map_blocks(
{
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
- ssize_t count = 1 << inode->i_blkbits;
+ ssize_t count = i_blocksize(inode);
xfs_fileoff_t offset_fsb, end_fsb;
int error = 0;
int bmapi_flags = XFS_BMAPI_ENTIRE;
@@ -759,7 +759,7 @@ xfs_aops_discard_page(
break;
}
next_buffer:
- offset += 1 << inode->i_blkbits;
+ offset += i_blocksize(inode);

} while ((bh = bh->b_this_page) != head);

@@ -847,7 +847,7 @@ xfs_writepage_map(
LIST_HEAD(submit_list);
struct xfs_ioend *ioend, *next;
struct buffer_head *bh, *head;
- ssize_t len = 1 << inode->i_blkbits;
+ ssize_t len = i_blocksize(inode);
int error = 0;
int count = 0;
int uptodate = 1;
@@ -1250,7 +1250,7 @@ xfs_map_trim_size(
offset + mapping_size >= i_size_read(inode)) {
/* limit mapping to block that spans EOF */
mapping_size = roundup_64(i_size_read(inode) - offset,
- 1 << inode->i_blkbits);
+ i_blocksize(inode));
}
if (mapping_size > LONG_MAX)
mapping_size = LONG_MAX;
@@ -1286,7 +1286,7 @@ __xfs_get_blocks(
return -EIO;

offset = (xfs_off_t)iblock << inode->i_blkbits;
- ASSERT(bh_result->b_size >= (1 << inode->i_blkbits));
+ ASSERT(bh_result->b_size >= i_blocksize(inode));
size = bh_result->b_size;

if (!create && offset >= i_size_read(inode))
@@ -1634,7 +1634,7 @@ xfs_vm_set_page_dirty(
if (offset < end_offset)
set_buffer_dirty(bh);
bh = bh->b_this_page;
- offset += 1 << inode->i_blkbits;
+ offset += i_blocksize(inode);
} while (bh != head);
}
/*
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -823,7 +823,7 @@ xfs_file_fallocate(
if (error)
goto out_unlock;
} else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
- unsigned blksize_mask = (1 << inode->i_blkbits) - 1;
+ unsigned int blksize_mask = i_blocksize(inode) - 1;

if (offset & blksize_mask || len & blksize_mask) {
error = -EINVAL;
@@ -845,7 +845,7 @@ xfs_file_fallocate(
if (error)
goto out_unlock;
} else if (mode & FALLOC_FL_INSERT_RANGE) {
- unsigned blksize_mask = (1 << inode->i_blkbits) - 1;
+ unsigned int blksize_mask = i_blocksize(inode) - 1;

new_size = i_size_read(inode) + len;
if (offset & blksize_mask || len & blksize_mask) {
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -705,6 +705,11 @@ struct inode {
void *i_private; /* fs or device private pointer */
};

+static inline unsigned int i_blocksize(const struct inode *node)
+{
+ return (1 << node->i_blkbits);
+}
+
static inline int inode_unhashed(struct inode *inode)
{
return hlist_unhashed(&inode->i_hash);
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -753,7 +753,7 @@ EXPORT_SYMBOL(truncate_setsize);
*/
void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
{
- int bsize = 1 << inode->i_blkbits;
+ int bsize = i_blocksize(inode);
loff_t rounded_from;
struct page *page;
pgoff_t index;