[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>

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 2d096057ab53084bac4180f089830d9195cba919..573fc8e0b67a01b5f8ce799768ea241daeace02d 100644 (file)
--- 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;
 }