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fs/hfsplus/wrapper.c: replace shift loop by ilog2 

Replace while blocksize;shift by ilog2

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Joe Perches <joe@perches.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 2014-06-06 14:36:29 -07:00 committed by Linus Torvalds
parent 2cd282a1bc
commit 297cc27207
1 changed files with 1 additions and 3 deletions
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4
fs/hfsplus/wrapper.c
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@ -231,9 +231,7 @@ int hfsplus_read_wrapper(struct super_block *sb)
if (blocksize < HFSPLUS_SECTOR_SIZE || ((blocksize - 1) & blocksize))
goto out_free_backup_vhdr;
sbi->alloc_blksz = blocksize;
sbi->alloc_blksz_shift = 0;
while ((blocksize >>= 1) != 0)
sbi->alloc_blksz_shift++;
sbi->alloc_blksz_shift = ilog2(blocksize);
blocksize = min_t(u32, sbi->alloc_blksz, PAGE_SIZE);
/*