diff options
| author | vignesh babu <vignesh.babu@wipro.com> | 2007-10-16 23:27:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:53 -0700 |
| commit | d8ea6cf89991000ae458e34e36379814cf202555 (patch) | |
| tree | 267324741b51696f4e5642ff4f53746cee78e4cc /fs/ext2 | |
| parent | 3befe7ceb8d39a56a9ea55dd2da8b4bd9ddcdd36 (diff) | |
| download | lwn-d8ea6cf89991000ae458e34e36379814cf202555.tar.gz lwn-d8ea6cf89991000ae458e34e36379814cf202555.zip | |
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')
| -rw-r--r-- | fs/ext2/super.c | 3 |
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); |