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fs: add i_blocksize()

Browse Source 
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@gmail.com: truncate: use i_blocksize()]
  Link: http://lkml.kernel.org/r/9c8b2cd83c8f5653805d43debde9fa8817e02fc4.1484895804.git.geliangtang@gmail.com
Link: http://lkml.kernel.org/r/1481319905-10126-1-git-send-email-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Fabian Frederick 2017-02-27 14:28:32 -08:00 committed by Linus Torvalds
parent d317120097
commit 93407472a2
27 changed files with 56 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/block_dev.c
View File

@ -989,7 +989,7 @@ struct block_device *bdget(dev_t dev)
bdev->bd_super = NULL;
bdev->bd_inode = inode;
bdev->bd_bdi = &noop_backing_dev_info;
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;

2
fs/btrfs/file.c
View File

@ -2875,7 +2875,7 @@ static long btrfs_fallocate(struct file *file, int mode,
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,

12
fs/buffer.c
View File

@ -2395,7 +2395,7 @@ static int cont_expand_zero(struct file *file, struct address_space *mapping,
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;
@ -2475,8 +2475,8 @@ int cont_write_begin(struct file *file, struct address_space *mapping,
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);
@ -2838,7 +2838,7 @@ int nobh_truncate_page(struct address_space *mapping,
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 */
@ -2916,7 +2916,7 @@ int block_truncate_page(struct address_space *mapping,
struct buffer_head *bh;
int err;
blocksize = 1 << inode->i_blkbits;
blocksize = i_blocksize(inode);
length = offset & (blocksize - 1);
/* Block boundary? Nothing to do */
@ -3028,7 +3028,7 @@ sector_t generic_block_bmap(struct address_space *mapping, sector_t block,
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;
}

2
fs/ceph/addr.c
View File

@ -751,7 +751,7 @@ static int ceph_writepages_start(struct address_space *mapping,
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;

2
fs/direct-io.c
View File

@ -587,7 +587,7 @@ static int dio_set_defer_completion(struct dio *dio)
/*
* 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.

6
fs/ext4/inode.c
View File

@ -2221,7 +2221,7 @@ static int mpage_process_page_bufs(struct mpage_da_data *mpd,
{
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 {
@ -3577,7 +3577,7 @@ static ssize_t ext4_direct_IO_write(struct kiocb *iocb, struct iov_iter *iter)
if (overwrite)
get_block_func = ext4_dio_get_block_overwrite;
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)) {
@ -5179,7 +5179,7 @@ static void ext4_wait_for_tail_page_commit(struct inode *inode)
* 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,

2
fs/ext4/mballoc.c
View File

@ -838,7 +838,7 @@ static int ext4_mb_init_cache(struct page *page, char *incore, gfp_t gfp)
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;

2
fs/ext4/move_extent.c
View File

@ -187,7 +187,7 @@ mext_page_mkuptodate(struct page *page, unsigned from, unsigned to)
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);

10
fs/iomap.c
View File

@ -420,8 +420,8 @@ int
iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
const 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)
@ -735,9 +735,9 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length,
void *data, struct iomap *iomap)
{
struct iomap_dio *dio = data;
unsigned blkbits = blksize_bits(bdev_logical_block_size(iomap->bdev));
unsigned fs_block_size = (1 << inode->i_blkbits), pad;
unsigned align = iov_iter_alignment(dio->submit.iter);
unsigned int blkbits = blksize_bits(bdev_logical_block_size(iomap->bdev));
unsigned int fs_block_size = i_blocksize(inode), pad;
unsigned int align = iov_iter_alignment(dio->submit.iter);
struct iov_iter iter;
struct bio *bio;
bool need_zeroout = false;

4
fs/jfs/super.c
View File

@ -758,7 +758,7 @@ static ssize_t jfs_quota_read(struct super_block *sb, int type, char *data,
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 super_block *sb, int type,
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;

2
fs/mpage.c
View File

@ -115,7 +115,7 @@ map_buffer_to_page(struct page *page, struct buffer_head *bh, int page_block)
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;

6
fs/nfsd/blocklayout.c
View File

@ -24,7 +24,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
{
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;
@ -181,7 +181,7 @@ nfsd4_block_proc_layoutcommit(struct inode *inode,
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);
@ -375,7 +375,7 @@ nfsd4_scsi_proc_layoutcommit(struct inode *inode,
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);

2
fs/nilfs2/btnode.c
View File

@ -50,7 +50,7 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
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);

4
fs/nilfs2/inode.c
View File

@ -51,7 +51,7 @@ void nilfs_inode_add_blocks(struct inode *inode, int n)
{
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 *inode, int n)
{
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);
}

4
fs/nilfs2/mdt.c
View File

@ -57,7 +57,7 @@ nilfs_mdt_insert_new_block(struct inode *inode, unsigned long block,
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 inode *inode, unsigned int entry_size,
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);
}

2
fs/nilfs2/segment.c
View File

@ -723,7 +723,7 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode,
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);

2
fs/ocfs2/aops.c
View File

@ -608,7 +608,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
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);

2
fs/ocfs2/file.c
View File

@ -808,7 +808,7 @@ static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from,
/* 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

4
fs/orangefs/orangefs-utils.c
View File

@ -306,7 +306,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass)
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 *inode, int new, int bypass)
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);

2
fs/reiserfs/file.c
View File

@ -189,7 +189,7 @@ int reiserfs_commit_page(struct inode *inode, struct page *page,
int ret = 0;
th.t_trans_id = 0;
blocksize = 1 << inode->i_blkbits;
blocksize = i_blocksize(inode);
if (logit) {
reiserfs_write_lock(s);

2
fs/reiserfs/inode.c
View File

@ -525,7 +525,7 @@ static int reiserfs_get_blocks_direct_io(struct inode *inode,
* 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);

2
fs/stat.c
View File

@ -31,7 +31,7 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
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;
}

2
fs/udf/inode.c
View File

@ -1193,7 +1193,7 @@ int udf_setsize(struct inode *inode, loff_t newsize)
{
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)))

16
fs/xfs/xfs_aops.c
View File

@ -103,9 +103,9 @@ 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;
@ -758,7 +758,7 @@ xfs_aops_discard_page(
break;
}
next_buffer:
offset += 1 << inode->i_blkbits;
offset += i_blocksize(inode);
} while ((bh = bh->b_this_page) != head);
@ -846,7 +846,7 @@ 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;
@ -1210,7 +1210,7 @@ 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;
@ -1241,7 +1241,7 @@ 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 (offset >= i_size_read(inode))
@ -1389,7 +1389,7 @@ 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);
}
/*

4
fs/xfs/xfs_file.c
View File

@ -754,7 +754,7 @@ 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;
@ -776,7 +776,7 @@ 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) {

5
include/linux/fs.h
View File

@ -655,6 +655,11 @@ 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);

2
mm/truncate.c
View File

@ -786,7 +786,7 @@ 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;