fsnotify: include data in should_send calls

fanotify is going to need to look at file->private_data to know if an event
should be sent or not.  This passes the data (which might be a file,
dentry, inode, or none) to the should_send function calls so fanotify can
get that information when available

Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index 6f30f49..a213b83 100644
--- a/fs/notify/dnotify/dnotify.c
+++ b/fs/notify/dnotify/dnotify.c
@@ -134,7 +134,7 @@
  */
 static bool dnotify_should_send_event(struct fsnotify_group *group,
 				      struct inode *inode, __u32 mask,
-				      int data_type)
+				      void *data, int data_type)
 {
 	struct fsnotify_mark_entry *entry;
 	bool send;
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index fc06e47..523337b 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -157,7 +157,8 @@
 	idx = srcu_read_lock(&fsnotify_grp_srcu);
 	list_for_each_entry_rcu(group, &fsnotify_groups, group_list) {
 		if (test_mask & group->mask) {
-			if (!group->ops->should_send_event(group, to_tell, mask, data_is))
+			if (!group->ops->should_send_event(group, to_tell, mask,
+							   data, data_is))
 				continue;
 			if (!event) {
 				event = fsnotify_create_event(to_tell, mask, data,
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index fc7c495..1f33234 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -87,7 +87,7 @@
 }
 
 static bool inotify_should_send_event(struct fsnotify_group *group, struct inode *inode,
-				      __u32 mask, int data_type)
+				      __u32 mask, void *data, int data_type)
 {
 	struct fsnotify_mark_entry *entry;
 	bool send;