---

yaml --- r: 146361 b: refs/heads/master c: f7c4395 h: refs/heads/master i: 146359: bc216a1 v: v3
git-mirror · Apr 25, 2009 · 3f2399e · 3f2399e
1 parent a8526e3
commit 3f2399e
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Showing 2 changed files with 3 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c5ca7c7636fa689a9746b6032f83aa7fffec31c6
+refs/heads/master: f7c439504ccba0cca43271e651013ab97a221c62
diff --git a/trunk/fs/ext4/super.c b/trunk/fs/ext4/super.c
@@ -1483,7 +1483,7 @@ static int parse_options(char *options, struct super_block *sb,
 				return 0;
 			if (option < 0 || option > (1 << 30))
 				return 0;
-			if (option & (option - 1)) {
+			if (!is_power_of_2(option)) {
 				printk(KERN_ERR "EXT4-fs: inode_readahead_blks"
 				       " must be a power of 2\n");
 				return 0;
@@ -2101,8 +2101,7 @@ static ssize_t inode_readahead_blks_store(struct ext4_attr *a,
 	if (parse_strtoul(buf, 0x40000000, &t))
 		return -EINVAL;
 
-	/* inode_readahead_blks must be a power of 2 */
-	if (t & (t-1))
+	if (!is_power_of_2(t))
 		return -EINVAL;
 
 	sbi->s_inode_readahead_blks = t;