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

Pull fourth vfs update from Al Viro:
 "d_inode() annotations from David Howells (sat in for-next since before
  the beginning of merge window) + four assorted fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  RCU pathwalk breakage when running into a symlink overmounting something
  fix I_DIO_WAKEUP definition
  direct-io: only inc/dec inode->i_dio_count for file systems
  fs/9p: fix readdir()
  VFS: assorted d_backing_inode() annotations
  VFS: fs/inode.c helpers: d_inode() annotations
  VFS: fs/cachefiles: d_backing_inode() annotations
  VFS: fs library helpers: d_inode() annotations
  VFS: assorted weird filesystems: d_inode() annotations
  VFS: normal filesystems (and lustre): d_inode() annotations
  VFS: security/: d_inode() annotations
  VFS: security/: d_backing_inode() annotations
  VFS: net/: d_inode() annotations
  VFS: net/unix: d_backing_inode() annotations
  VFS: kernel/: d_inode() annotations
  VFS: audit: d_backing_inode() annotations
  VFS: Fix up some ->d_inode accesses in the chelsio driver
  VFS: Cachefiles should perform fs modifications on the top layer only
  VFS: AF_UNIX sockets should call mknod on the top layer only

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index fbb08e97438d..6af790fc3df8 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -123,11 +123,11 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache)
 
         /* check parameters */
         ret = -EOPNOTSUPP;
-        if (!root->d_inode ||
-            !root->d_inode->i_op->lookup ||
-            !root->d_inode->i_op->mkdir ||
-            !root->d_inode->i_op->setxattr ||
-            !root->d_inode->i_op->getxattr ||
+        if (d_is_negative(root) ||
+            !d_backing_inode(root)->i_op->lookup ||
+            !d_backing_inode(root)->i_op->mkdir ||
+            !d_backing_inode(root)->i_op->setxattr ||
+            !d_backing_inode(root)->i_op->getxattr ||
             !root->d_sb->s_op->statfs ||
             !root->d_sb->s_op->sync_fs)
                 goto error_unsupported;