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is_power_of_2: ext3/super.c 

Replace (n & (n-1)) in the context of power of 2 checks with is_power_of_2()

Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
vignesh babu 2007-07-15 23:41:17 -07:00 committed by Linus Torvalds
parent 681dcd9543
commit 3fc74269c8
1 changed files with 2 additions and 1 deletions
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3
fs/ext3/super.c
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@ -35,6 +35,7 @@
#include <linux/namei.h> #include <linux/namei.h>
#include <linux/quotaops.h> #include <linux/quotaops.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
#include <linux/log2.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
@ -1574,7 +1575,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
sbi->s_inode_size = le16_to_cpu(es->s_inode_size); sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
sbi->s_first_ino = le32_to_cpu(es->s_first_ino); sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) || if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
(sbi->s_inode_size & (sbi->s_inode_size - 1)) || (!is_power_of_2(sbi->s_inode_size)) ||
(sbi->s_inode_size > blocksize)) { (sbi->s_inode_size > blocksize)) {
printk (KERN_ERR printk (KERN_ERR
"EXT3-fs: unsupported inode size: %d\n", "EXT3-fs: unsupported inode size: %d\n",