ext4: fix a wrong comment in __mb_check_buddy()
The comment says the bit should be 0, but the after code assert the
bit to be 1. This makes people confused, so fix it.
Signed-off-by: Robin Dong <sanbai@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 2bb1ddc..e2d8be8 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -581,7 +581,7 @@
continue;
}
- /* both bits in buddy2 must be 0 */
+ /* both bits in buddy2 must be 1 */
MB_CHECK_ASSERT(mb_test_bit(i << 1, buddy2));
MB_CHECK_ASSERT(mb_test_bit((i << 1) + 1, buddy2));