vfs: Remove unnecessary calls of check_submounts_and_drop

Now that check_submounts_and_drop can not fail and is called from
d_invalidate there is no longer a need to call check_submounts_and_drom
from filesystem d_revalidate methods so remove it.

Reviewed-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 11 deletions

diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index a693f5b01ae6..1c771931bb60 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -463,21 +463,10 @@ static int kernfs_dop_revalidate(struct dentry *dentry, unsigned int flags)
                 goto out_bad;
 
         mutex_unlock(&kernfs_mutex);
-out_valid:
         return 1;
 out_bad:
         mutex_unlock(&kernfs_mutex);
 out_bad_unlocked:
-        /*
-         * @dentry doesn't match the underlying kernfs node, drop the
-         * dentry and force lookup.  If we have submounts we must allow the
-         * vfs caches to lie about the state of the filesystem to prevent
-         * leaks and other nasty things, so use check_submounts_and_drop()
-         * instead of d_drop().
-         */
-        if (check_submounts_and_drop(dentry) != 0)
-                goto out_valid;
-
         return 0;
 }