From: Eric Paris <eparis@redhat.com>
Date: Fri, 18 Dec 2009 01:12:06 +0000 (-0500)
Subject: inotify: use container_of instead of casting
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=31ddd3268dcb6c1d70e9930a83be43bf86e4bf17;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

inotify: use container_of instead of casting

inotify_free_mark casts directly from an fsnotify_mark_entry to an
inotify_inode_mark_entry.  This works, but should use container_of instead
for future proofing.

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

diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index f22a04005db2..a0e40f7c9781 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -550,7 +550,9 @@ skip_send_ignore:
 /* ding dong the mark is dead */
 static void inotify_free_mark(struct fsnotify_mark_entry *entry)
 {
-	struct inotify_inode_mark_entry *ientry = (struct inotify_inode_mark_entry *)entry;
+	struct inotify_inode_mark_entry *ientry;
+
+	ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry);
 
 	kmem_cache_free(inotify_inode_mark_cachep, ientry);
 }