[AF_UNIX]: Use lookup_create().
currently it opencodes it, but that's in the way of chaning the
lookup_hash interface.
I'd prefer to disallow modular af_unix over exporting lookup_create,
but I'll leave that to you.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index c478fc8..c420eba 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -770,33 +770,12 @@
err = path_lookup(sunaddr->sun_path, LOOKUP_PARENT, &nd);
if (err)
goto out_mknod_parent;
- /*
- * Yucky last component or no last component at all?
- * (foo/., foo/.., /////)
- */
- err = -EEXIST;
- if (nd.last_type != LAST_NORM)
- goto out_mknod;
- /*
- * Lock the directory.
- */
- down(&nd.dentry->d_inode->i_sem);
- /*
- * Do the final lookup.
- */
- dentry = lookup_hash(&nd.last, nd.dentry);
+
+ dentry = lookup_create(&nd, 0);
err = PTR_ERR(dentry);
if (IS_ERR(dentry))
goto out_mknod_unlock;
- err = -ENOENT;
- /*
- * Special case - lookup gave negative, but... we had foo/bar/
- * From the vfs_mknod() POV we just have a negative dentry -
- * all is fine. Let's be bastards - you had / on the end, you've
- * been asking for (non-existent) directory. -ENOENT for you.
- */
- if (nd.last.name[nd.last.len] && !dentry->d_inode)
- goto out_mknod_dput;
+
/*
* All right, let's create it.
*/
@@ -845,7 +824,6 @@
dput(dentry);
out_mknod_unlock:
up(&nd.dentry->d_inode->i_sem);
-out_mknod:
path_release(&nd);
out_mknod_parent:
if (err==-EEXIST)