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

Pull vfs updates from Al Viro:
 "Assorted cleanups and fixes.

  Probably the most interesting part long-term is ->d_init() - that will
  have a bunch of followups in (at least) ceph and lustre, but we'll
  need to sort the barrier-related rules before it can get used for
  really non-trivial stuff.

  Another fun thing is the merge of ->d_iput() callers (dentry_iput()
  and dentry_unlink_inode()) and a bunch of ->d_compare() ones (all
  except the one in __d_lookup_lru())"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
  fs/dcache.c: avoid soft-lockup in dput()
  vfs: new d_init method
  vfs: Update lookup_dcache() comment
  bdev: get rid of ->bd_inodes
  Remove last traces of ->sync_page
  new helper: d_same_name()
  dentry_cmp(): use lockless_dereference() instead of smp_read_barrier_depends()
  vfs: clean up documentation
  vfs: document ->d_real()
  vfs: merge .d_select_inode() into .d_real()
  unify dentry_iput() and dentry_unlink_inode()
  binfmt_misc: ->s_root is not going anywhere
  drop redundant ->owner initializations
  ufs: get rid of redundant checks
  orangefs: constify inode_operations
  missed comment updates from ->direct_IO() prototype change
  file_inode(f)->i_mapping is f->f_mapping
  trim fsnotify hooks a bit
  9p: new helper - v9fs_parent_fid()
  debugfs: ->d_parent is never NULL or negative
  ...

1 files changed, 3 insertions, 17 deletions

diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 29f917517299..58205f33af02 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -267,10 +267,8 @@ static inline int fsnotify_inode_watches_children(struct inode *inode)
  * Update the dentry with a flag indicating the interest of its parent to receive
  * filesystem events when those events happens to this dentry->d_inode.
  */
-static inline void __fsnotify_update_dcache_flags(struct dentry *dentry)
+static inline void fsnotify_update_flags(struct dentry *dentry)
 {
-	struct dentry *parent;
-
 	assert_spin_locked(&dentry->d_lock);
 
 	/*
@@ -280,21 +278,12 @@ static inline void __fsnotify_update_dcache_flags(struct dentry *dentry)
 	 * find our entry, so it will spin until we complete here, and update
 	 * us with the new state.
 	 */
-	parent = dentry->d_parent;
-	if (parent->d_inode && fsnotify_inode_watches_children(parent->d_inode))
+	if (fsnotify_inode_watches_children(dentry->d_parent->d_inode))
 		dentry->d_flags |= DCACHE_FSNOTIFY_PARENT_WATCHED;
 	else
 		dentry->d_flags &= ~DCACHE_FSNOTIFY_PARENT_WATCHED;
 }
 
-/*
- * fsnotify_d_instantiate - instantiate a dentry for inode
- */
-static inline void __fsnotify_d_instantiate(struct dentry *dentry)
-{
-	__fsnotify_update_dcache_flags(dentry);
-}
-
 /* called from fsnotify listeners, such as fanotify or dnotify */
 
 /* create a new group */
@@ -386,10 +375,7 @@ static inline void __fsnotify_inode_delete(struct inode *inode)
 static inline void __fsnotify_vfsmount_delete(struct vfsmount *mnt)
 {}
 
-static inline void __fsnotify_update_dcache_flags(struct dentry *dentry)
-{}
-
-static inline void __fsnotify_d_instantiate(struct dentry *dentry)
+static inline void fsnotify_update_flags(struct dentry *dentry)
 {}
 
 static inline u32 fsnotify_get_cookie(void)