Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs pile 2 (of many) from Al Viro:
 "Mostly Miklos' series this time"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  constify dcache.c inlined helpers where possible
  fuse: drop dentry on failed revalidate
  fuse: clean up return in fuse_dentry_revalidate()
  fuse: use d_materialise_unique()
  sysfs: use check_submounts_and_drop()
  nfs: use check_submounts_and_drop()
  gfs2: use check_submounts_and_drop()
  afs: use check_submounts_and_drop()
  vfs: check unlinked ancestors before mount
  vfs: check submounts and drop atomically
  vfs: add d_walk()
  vfs: restructure d_genocide()

1 files changed, 3 insertions, 6 deletions

diff --git a/fs/gfs2/dentry.c b/fs/gfs2/dentry.c
index f2448ab2aac5..d3a5d4e29ba5 100644
--- a/fs/gfs2/dentry.c
+++ b/fs/gfs2/dentry.c
@@ -93,12 +93,9 @@ invalid_gunlock:
         if (!had_lock)
                 gfs2_glock_dq_uninit(&d_gh);
 invalid:
-        if (inode && S_ISDIR(inode->i_mode)) {
-                if (have_submounts(dentry))
-                        goto valid;
-                shrink_dcache_parent(dentry);
-        }
-        d_drop(dentry);
+        if (check_submounts_and_drop(dentry) != 0)
+                goto valid;
+
         dput(parent);
         return 0;