Merge branch 'work.mkdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs icache updates from Al Viro:

 - NFS mkdir/open_by_handle race fix

 - analogous solution for FUSE, replacing the one currently in mainline

 - new primitive to be used when discarding halfway set up inodes on
   failed object creation; gives sane warranties re icache lookups not
   returning such doomed by still not freed inodes. A bunch of
   filesystems switched to that animal.

 - Miklos' fix for last cycle regression in iget5_locked(); -stable will
   need a slightly different variant, unfortunately.

 - misc bits and pieces around things icache-related (in adfs and jfs).

* 'work.mkdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  jfs: don't bother with make_bad_inode() in ialloc()
  adfs: don't put inodes into icache
  new helper: inode_fake_hash()
  vfs: don't evict uninitialized inode
  jfs: switch to discard_new_inode()
  ext2: make sure that partially set up inodes won't be returned by ext2_iget()
  udf: switch to discard_new_inode()
  ufs: switch to discard_new_inode()
  btrfs: switch to discard_new_inode()
  new primitive: discard_new_inode()
  kill d_instantiate_no_diralias()
  nfs_instantiate(): prevent multiple aliases for directory inode

1 files changed, 11 insertions, 4 deletions

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index c979329311c8..d80aab0d5982 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -539,6 +539,7 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_args *args,
 {
         struct fuse_entry_out outarg;
         struct inode *inode;
+        struct dentry *d;
         int err;
         struct fuse_forget_link *forget;
 
@@ -570,11 +571,17 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_args *args,
         }
         kfree(forget);
 
-        err = d_instantiate_no_diralias(entry, inode);
-        if (err)
-                return err;
+        d_drop(entry);
+        d = d_splice_alias(inode, entry);
+        if (IS_ERR(d))
+                return PTR_ERR(d);
 
-        fuse_change_entry_timeout(entry, &outarg);
+        if (d) {
+                fuse_change_entry_timeout(d, &outarg);
+                dput(d);
+        } else {
+                fuse_change_entry_timeout(entry, &outarg);
+        }
         fuse_invalidate_attr(dir);
         return 0;