Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc filesystem updates from Al Viro:
 "Misc cleanups (the part that hadn't been picked by individual fs
  trees)"

* tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  apparmorfs: don't duplicate kfree_link()
  orangefs: saner arguments passing in readdir guts
  ocfs2_find_match(): there's no such thing as NULL or negative ->d_parent
  reiserfs_add_entry(): get rid of pointless namelen checks
  __ocfs2_add_entry(), ocfs2_prepare_dir_for_insert(): namelen checks
  ext4_add_entry(): ->d_name.len is never 0
  befs: d_obtain_alias(ERR_PTR(...)) will do the right thing
  affs: d_obtain_alias(ERR_PTR(...)) will do the right thing
  /proc/sys: use d_splice_alias() calling conventions to simplify failure exits
  hostfs: use d_splice_alias() calling conventions to simplify failure exits
  udf_fiiter_add_entry(): check for zero ->d_name.len is bogus...
  udf: d_obtain_alias(ERR_PTR(...)) will do the right thing...
  udf: d_splice_alias() will do the right thing on ERR_PTR() inode
  nfsd: kill stale comment about simple_fill_super() requirements
  bfs_add_entry(): get rid of pointless ->d_name.len checks
  nilfs2: d_obtain_alias(ERR_PTR(...)) will do the right thing...
  zonefs: d_splice_alias() will do the right thing on ERR_PTR() inode

2 files changed, 0 insertions, 16 deletions

diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index 04fc8344063a..a9b8688aaf30 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -124,17 +124,10 @@ static int ocfs2_match_dentry(struct dentry *dentry,
 	if (!dentry->d_fsdata)
 		return 0;
 
-	if (!dentry->d_parent)
-		return 0;
-
 	if (skip_unhashed && d_unhashed(dentry))
 		return 0;
 
 	parent = d_inode(dentry->d_parent);
-	/* Negative parent dentry? */
-	if (!parent)
-		return 0;
-
 	/* Name is in a different directory. */
 	if (OCFS2_I(parent)->ip_blkno != parent_blkno)
 		return 0;
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index a14c8fee6ee5..d620d4c53c6f 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -1593,9 +1593,6 @@ int __ocfs2_add_entry(handle_t *handle,
 	struct buffer_head *insert_bh = lookup->dl_leaf_bh;
 	char *data_start = insert_bh->b_data;
 
-	if (!namelen)
-		return -EINVAL;
-
 	if (ocfs2_dir_indexed(dir)) {
 		struct buffer_head *bh;
 
@@ -4245,12 +4242,6 @@ int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb,
 	trace_ocfs2_prepare_dir_for_insert(
 		(unsigned long long)OCFS2_I(dir)->ip_blkno, namelen);
 
-	if (!namelen) {
-		ret = -EINVAL;
-		mlog_errno(ret);
-		goto out;
-	}
-
 	/*
 	 * Do this up front to reduce confusion.
 	 *