1 files changed, 1 insertions, 2 deletions

diff --git a/fs/afs/flock.c b/fs/afs/flock.c
index af6952e39a18..210acafe4a9b 100644
--- a/fs/afs/flock.c
+++ b/fs/afs/flock.c
@@ -524,8 +524,7 @@ int afs_lock(struct file *file, int cmd, struct file_lock *fl)
                (long long) fl->fl_start, (long long) fl->fl_end);
 
         /* AFS doesn't support mandatory locks */
-        if ((vnode->vfs_inode.i_mode & (S_ISGID | S_IXGRP)) == S_ISGID &&
-            fl->fl_type != F_UNLCK)
+        if (__mandatory_lock(&vnode->vfs_inode) && fl->fl_type != F_UNLCK)
                 return -ENOLCK;
 
         if (IS_GETLK(cmd))