Merge tag 'fsnotify_for_v4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "fsnotify cleanups from Amir and a small inotify improvement"

* tag 'fsnotify_for_v4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  inotify: Add flag IN_MASK_CREATE for inotify_add_watch()
  fanotify: factor out helpers to add/remove mark
  fsnotify: add helper to get mask from connector
  fsnotify: let connector point to an abstract object
  fsnotify: pass connp and object type to fsnotify_add_mark()
  fsnotify: use typedef fsnotify_connp_t for brevity

1 files changed, 9 insertions, 8 deletions

diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 9f6eaeb6919f..ea43181cde4a 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -168,7 +168,8 @@ static __cacheline_aligned_in_smp DEFINE_SPINLOCK(hash_lock);
 /* Function to return search key in our hash from inode. */
 static unsigned long inode_to_key(const struct inode *inode)
 {
-	return (unsigned long)inode;
+	/* Use address pointed to by connector->obj as the key */
+	return (unsigned long)&inode->i_fsnotify_marks;
 }
 
 /*
@@ -183,7 +184,7 @@ static unsigned long chunk_to_key(struct audit_chunk *chunk)
 	 */
 	if (WARN_ON_ONCE(!chunk->mark.connector))
 		return 0;
-	return (unsigned long)chunk->mark.connector->inode;
+	return (unsigned long)chunk->mark.connector->obj;
 }
 
 static inline struct list_head *chunk_hash(unsigned long key)
@@ -258,7 +259,7 @@ static void untag_chunk(struct node *p)
 	spin_lock(&entry->lock);
 	/*
 	 * mark_mutex protects mark from getting detached and thus also from
-	 * mark->connector->inode getting NULL.
+	 * mark->connector->obj getting NULL.
 	 */
 	if (chunk->dead || !(entry->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) {
 		spin_unlock(&entry->lock);
@@ -288,8 +289,8 @@ static void untag_chunk(struct node *p)
 	if (!new)
 		goto Fallback;
 
-	if (fsnotify_add_inode_mark_locked(&new->mark, entry->connector->inode,
-					   1)) {
+	if (fsnotify_add_mark_locked(&new->mark, entry->connector->obj,
+				     FSNOTIFY_OBJ_TYPE_INODE, 1)) {
 		fsnotify_put_mark(&new->mark);
 		goto Fallback;
 	}
@@ -423,7 +424,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
 	spin_lock(&old_entry->lock);
 	/*
 	 * mark_mutex protects mark from getting detached and thus also from
-	 * mark->connector->inode getting NULL.
+	 * mark->connector->obj getting NULL.
 	 */
 	if (!(old_entry->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) {
 		/* old_entry is being shot, lets just lie */
@@ -434,8 +435,8 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
 		return -ENOENT;
 	}
 
-	if (fsnotify_add_inode_mark_locked(chunk_entry,
-			     old_entry->connector->inode, 1)) {
+	if (fsnotify_add_mark_locked(chunk_entry, old_entry->connector->obj,
+				     FSNOTIFY_OBJ_TYPE_INODE, 1)) {
 		spin_unlock(&old_entry->lock);
 		mutex_unlock(&old_entry->group->mark_mutex);
 		fsnotify_put_mark(chunk_entry);