fix bogus read_seqretry() checks introduced in b37199e

read_seqretry() returns true on mismatch, not on match...

Cc: stable@vger.kernel.org # 3.15+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/namei.c b/fs/namei.c
index a996bb48dfab..3d1dc745f9d8 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1137,7 +1137,7 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
                  */
                 *inode = path->dentry->d_inode;
         }
-        return read_seqretry(&mount_lock, nd->m_seq) &&
+        return !read_seqretry(&mount_lock, nd->m_seq) &&
                 !(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT);
 }
 
@@ -1174,7 +1174,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
                 nd->path.mnt = &mounted->mnt;
                 nd->path.dentry = mounted->mnt.mnt_root;
                 nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
-                if (!read_seqretry(&mount_lock, nd->m_seq))
+                if (read_seqretry(&mount_lock, nd->m_seq))
                         goto failed;
         }
         nd->inode = nd->path.dentry->d_inode;