From bcf5bbcaf438ef480e925668251b27c5bf346e99 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Fri, 5 Nov 2021 13:46:09 -0700
Subject: [PATCH] UPSTREAM: mm/damon: remove unnecessary do_exit() from kdamond

Just return from the kthread function.

Link: https://lkml.kernel.org/r/20210927232421.17694-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Cc: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5f7fe2b9b827662cf349ab45406d6cbf0cc6251f)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I3915c829f26c2d6e0e983156bf0229d067b03f4f
---
 mm/damon/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 874558a790a0..61a9e3b37bc9 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -714,7 +714,7 @@ static int kdamond_fn(void *data)
 	nr_running_ctxs--;
 	mutex_unlock(&damon_lock);
 
-	do_exit(0);
+	return 0;
 }
 
 #include "core-test.h"