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: Eric Paris <eparis@redhat.com>
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 7d3c03e..5832604 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -305,8 +305,7 @@
 /* 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 */