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, 4 insertions, 4 deletions

diff --git a/drivers/block/drbd/drbd_debugfs.c b/drivers/block/drbd/drbd_debugfs.c
index 9a950022ff88..a6ee3d750c30 100644
--- a/drivers/block/drbd/drbd_debugfs.c
+++ b/drivers/block/drbd/drbd_debugfs.c
@@ -424,7 +424,7 @@ static int in_flight_summary_show(struct seq_file *m, void *pos)
  * So we have our own inline version of it above.  :-( */
 static inline int debugfs_positive(struct dentry *dentry)
 {
-        return dentry->d_inode && !d_unhashed(dentry);
+        return d_really_is_positive(dentry) && !d_unhashed(dentry);
 }
 
 /* make sure at *open* time that the respective object won't go away. */
@@ -439,15 +439,15 @@ static int drbd_single_open(struct file *file, int (*show)(struct seq_file *, vo
          * or has debugfs_remove() already been called? */
         parent = file->f_path.dentry->d_parent;
         /* not sure if this can happen: */
-        if (!parent || !parent->d_inode)
+        if (!parent || d_really_is_negative(parent))
                 goto out;
         /* serialize with d_delete() */
-        mutex_lock(&parent->d_inode->i_mutex);
+        mutex_lock(&d_inode(parent)->i_mutex);
         /* Make sure the object is still alive */
         if (debugfs_positive(file->f_path.dentry)
         && kref_get_unless_zero(kref))
                 ret = 0;
-        mutex_unlock(&parent->d_inode->i_mutex);
+        mutex_unlock(&d_inode(parent)->i_mutex);
         if (!ret) {
                 ret = single_open(file, show, data);
                 if (ret)