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fs: add i_blocksize()

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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
Download patch file Download diff file Expand all files Collapse all files

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;
}