ext2/4: use is_power_of_2()

[safe/jmp/linux-2.6] / fs / ext2 / super.c

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 3e78af2..51b4c43 100644 (file)
--- 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);