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authorvignesh babu <vignesh.babu@wipro.com>2007-10-17 10:27:14 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 19:42:53 +0400
commitd8ea6cf89991000ae458e34e36379814cf202555 (patch)
tree267324741b51696f4e5642ff4f53746cee78e4cc /fs/ext2/super.c
parent3befe7ceb8d39a56a9ea55dd2da8b4bd9ddcdd36 (diff)
downloadlinux-d8ea6cf89991000ae458e34e36379814cf202555.tar.xz
ext2/4: use is_power_of_2()
Replace n & (n - 1) with is_power_of_2(n) Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext2/super.c')
-rw-r--r--fs/ext2/super.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 3e78af2ae7d8..51b4c43b97e4 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -30,6 +30,7 @@
#include <linux/vfs.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
+#include <linux/log2.h>
#include <asm/uaccess.h>
#include "ext2.h"
#include "xattr.h"
@@ -862,7 +863,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
if ((sbi->s_inode_size < EXT2_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)) {
printk ("EXT2-fs: unsupported inode size: %d\n",
sbi->s_inode_size);