fsnotify: fsnotify_obtain_group should be fsnotify_alloc_group

fsnotify_obtain_group was intended to be able to find an already existing
group.  Nothing uses that functionality.  This just renames it to
fsnotify_alloc_group so it is clear what it is doing.

Signed-off-by: Eric Paris <eparis@redhat.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/fs/notify/group.c b/fs/notify/group.c
index 934860e98095..1d20d26d5fee 100644
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -162,16 +162,13 @@ void fsnotify_put_group(struct fsnotify_group *group)
 }
 
 /*
- * Either finds an existing group which matches the group_num, mask, and ops or
- * creates a new group and adds it to the global group list.  In either case we
- * take a reference for the group returned.
+ * Create a new fsnotify_group and hold a reference for the group returned.
  */
-struct fsnotify_group *fsnotify_obtain_group(__u32 mask,
-                                             const struct fsnotify_ops *ops)
+struct fsnotify_group *fsnotify_alloc_group(__u32 mask,
+                                            const struct fsnotify_ops *ops)
 {
         struct fsnotify_group *group;
 
-        /* very low use, simpler locking if we just always alloc */
         group = kzalloc(sizeof(struct fsnotify_group), GFP_KERNEL);
         if (!group)
                 return ERR_PTR(-ENOMEM);
@@ -192,7 +189,6 @@ struct fsnotify_group *fsnotify_obtain_group(__u32 mask,
 
         mutex_lock(&fsnotify_grp_mutex);
 
-        /* group not found, add a new one */
         list_add_rcu(&group->group_list, &fsnotify_groups);
         group->on_group_list = 1;
         /* being on the fsnotify_groups list holds one num_marks */