Patch "fsnotify: Add wrapper around fsnotify_add_event" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    fsnotify: Add wrapper around fsnotify_add_event

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     fsnotify-add-wrapper-around-fsnotify_add_event.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 84ae2043b9d5d90c39f0b7b13ebe137c36a9a603
Author: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
Date:   Mon Oct 25 16:27:24 2021 -0300

    fsnotify: Add wrapper around fsnotify_add_event
    
    [ Upstream commit 1ad03c3a326a86e259389592117252c851873395 ]
    
    fsnotify_add_event is growing in number of parameters, which in most
    case are just passed a NULL pointer.  So, split out a new
    fsnotify_insert_event function to clean things up for users who don't
    need an insert hook.
    
    Link: https://lore.kernel.org/r/20211025192746.66445-10-krisman@xxxxxxxxxxxxx
    Suggested-by: Amir Goldstein <amir73il@xxxxxxxxx>
    Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>
    Reviewed-by: Jan Kara <jack@xxxxxxx>
    Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
    Signed-off-by: Jan Kara <jack@xxxxxxx>
    Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 310246f8d3f19..f82e20228999c 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -781,8 +781,8 @@ static int fanotify_handle_event(struct fsnotify_group *group, u32 mask,
 	}
 
 	fsn_event = &event->fse;
-	ret = fsnotify_add_event(group, fsn_event, fanotify_merge,
-				 fanotify_insert_event);
+	ret = fsnotify_insert_event(group, fsn_event, fanotify_merge,
+				    fanotify_insert_event);
 	if (ret) {
 		/* Permission events shouldn't be merged */
 		BUG_ON(ret == 1 && mask & FANOTIFY_PERM_EVENTS);
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index b0530f75b274a..be3eb1cebdcce 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -123,7 +123,7 @@ int inotify_handle_inode_event(struct fsnotify_mark *inode_mark, u32 mask,
 	if (len)
 		strcpy(event->name, name->name);
 
-	ret = fsnotify_add_event(group, fsn_event, inotify_merge, NULL);
+	ret = fsnotify_add_event(group, fsn_event, inotify_merge);
 	if (ret) {
 		/* Our event wasn't used in the end. Free it. */
 		fsnotify_destroy_event(group, fsn_event);
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index 32f45543b9c64..44bb10f507153 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -78,12 +78,12 @@ void fsnotify_destroy_event(struct fsnotify_group *group,
  * 2 if the event was not queued - either the queue of events has overflown
  *   or the group is shutting down.
  */
-int fsnotify_add_event(struct fsnotify_group *group,
-		       struct fsnotify_event *event,
-		       int (*merge)(struct fsnotify_group *,
-				    struct fsnotify_event *),
-		       void (*insert)(struct fsnotify_group *,
-				      struct fsnotify_event *))
+int fsnotify_insert_event(struct fsnotify_group *group,
+			  struct fsnotify_event *event,
+			  int (*merge)(struct fsnotify_group *,
+				       struct fsnotify_event *),
+			  void (*insert)(struct fsnotify_group *,
+					 struct fsnotify_event *))
 {
 	int ret = 0;
 	struct list_head *list = &group->notification_list;
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 749bc85e1d1c4..b323d0c4b9671 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -498,16 +498,25 @@ extern int fsnotify_fasync(int fd, struct file *file, int on);
 extern void fsnotify_destroy_event(struct fsnotify_group *group,
 				   struct fsnotify_event *event);
 /* attach the event to the group notification queue */
-extern int fsnotify_add_event(struct fsnotify_group *group,
-			      struct fsnotify_event *event,
-			      int (*merge)(struct fsnotify_group *,
-					   struct fsnotify_event *),
-			      void (*insert)(struct fsnotify_group *,
-					     struct fsnotify_event *));
+extern int fsnotify_insert_event(struct fsnotify_group *group,
+				 struct fsnotify_event *event,
+				 int (*merge)(struct fsnotify_group *,
+					      struct fsnotify_event *),
+				 void (*insert)(struct fsnotify_group *,
+						struct fsnotify_event *));
+
+static inline int fsnotify_add_event(struct fsnotify_group *group,
+				     struct fsnotify_event *event,
+				     int (*merge)(struct fsnotify_group *,
+						  struct fsnotify_event *))
+{
+	return fsnotify_insert_event(group, event, merge, NULL);
+}
+
 /* Queue overflow event to a notification group */
 static inline void fsnotify_queue_overflow(struct fsnotify_group *group)
 {
-	fsnotify_add_event(group, group->overflow_event, NULL, NULL);
+	fsnotify_add_event(group, group->overflow_event, NULL);
 }
 
 static inline bool fsnotify_is_overflow_event(u32 mask)




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