fsnotify: drop mask argument from fsnotify_alloc_group

Nothing uses the mask argument to fsnotify_alloc_group.  This patch drops
that argument.
Signed-off-by: NEric Paris <eparis@redhat.com>

fs/notify/dnotify/dnotify.c

@@ -433,7 +433,7 @@ static int __init dnotify_init(void)
 	dnotify_struct_cache = KMEM_CACHE(dnotify_struct, SLAB_PANIC);
 	dnotify_mark_entry_cache = KMEM_CACHE(dnotify_mark_entry, SLAB_PANIC);
 
-	dnotify_group = fsnotify_alloc_group(0, &dnotify_fsnotify_ops);
+	dnotify_group = fsnotify_alloc_group(&dnotify_fsnotify_ops);
 	if (IS_ERR(dnotify_group))
 		panic("unable to allocate fsnotify group for dnotify\n");
 	return 0;

fs/notify/group.c

@@ -164,8 +164,7 @@ void fsnotify_put_group(struct fsnotify_group *group)
 /*
  * Create a new fsnotify_group and hold a reference for the group returned.
  */
-struct fsnotify_group *fsnotify_alloc_group(__u32 mask,
-					    const struct fsnotify_ops *ops)
+struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops)
 {
 	struct fsnotify_group *group;
 
@@ -175,8 +174,6 @@ struct fsnotify_group *fsnotify_alloc_group(__u32 mask,
 
 	atomic_set(&group->refcnt, 1);
 
-	group->mask = mask;
-
 	mutex_init(&group->notification_mutex);
 	INIT_LIST_HEAD(&group->notification_list);
 	init_waitqueue_head(&group->notification_waitq);
@@ -196,8 +193,5 @@ struct fsnotify_group *fsnotify_alloc_group(__u32 mask,
 
 	mutex_unlock(&fsnotify_grp_mutex);
 
-	if (mask)
-		fsnotify_recalc_global_mask();
-
 	return group;
 }

fs/notify/inotify/inotify_user.c

@@ -695,7 +695,7 @@ static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsign
 {
 	struct fsnotify_group *group;
 
-	group = fsnotify_alloc_group(0, &inotify_fsnotify_ops);
+	group = fsnotify_alloc_group(&inotify_fsnotify_ops);
 	if (IS_ERR(group))
 		return group;
 

include/linux/fsnotify_backend.h

@@ -305,8 +305,7 @@ static inline void __fsnotify_d_instantiate(struct dentry *dentry, struct inode
 /* must call when a group changes its ->mask */
 extern void fsnotify_recalc_global_mask(void);
 /* get a reference to an existing or create a new group */
-extern struct fsnotify_group *fsnotify_alloc_group(__u32 mask,
-						    const struct fsnotify_ops *ops);
+extern struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops);
 /* run all marks associated with this group and update group->mask */
 extern void fsnotify_recalc_group_mask(struct fsnotify_group *group);
 /* drop reference on a group from fsnotify_alloc_group */

kernel/audit_tree.c

@@ -937,7 +937,7 @@ static int __init audit_tree_init(void)
 {
 	int i;
 
-	audit_tree_group = fsnotify_alloc_group(0, &audit_tree_ops);
+	audit_tree_group = fsnotify_alloc_group(&audit_tree_ops);
 	if (IS_ERR(audit_tree_group))
 		audit_panic("cannot initialize fsnotify group for rectree watches");
 

kernel/audit_watch.c

@@ -585,7 +585,7 @@ static const struct fsnotify_ops audit_watch_fsnotify_ops = {
 
 static int __init audit_watch_init(void)
 {
-	audit_watch_group = fsnotify_alloc_group(0, &audit_watch_fsnotify_ops);
+	audit_watch_group = fsnotify_alloc_group(&audit_watch_fsnotify_ops);
 	if (IS_ERR(audit_watch_group)) {
 		audit_watch_group = NULL;
 		audit_panic("cannot create audit fsnotify group");