[PATCH] sb_set_blocksize cleanup

sb_set_blocksize() cleanup: make sb_set_blocksize() use blksize_bits().

Signed-off-by: Coywolf Qi Hunt <qiyong@fc-cn.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 5 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 2d096057ab53..573fc8e0b67a 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -86,16 +86,12 @@ EXPORT_SYMBOL(set_blocksize);
 
 int sb_set_blocksize(struct super_block *sb, int size)
 {
-        int bits = 9; /* 2^9 = 512 */
-
         if (set_blocksize(sb->s_bdev, size))
                 return 0;
         /* If we get here, we know size is power of two
          * and it's value is between 512 and PAGE_SIZE */
         sb->s_blocksize = size;
-        for (size >>= 10; size; size >>= 1)
-                ++bits;
-        sb->s_blocksize_bits = bits;
+        sb->s_blocksize_bits = blksize_bits(size);
         return sb->s_blocksize;
 }