The patch titled
Subject: mm-memcg-prevent-memoryswappiness-load-store-tearing-v3
has been added to the -mm mm-unstable branch. Its filename is
mm-memcg-prevent-memoryswappiness-load-store-tearing-v3.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memcg-prevent-memoryswappiness-load-store-tearing-v3.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Yue Zhao <findns94@xxxxxxxxx>
Subject: mm-memcg-prevent-memoryswappiness-load-store-tearing-v3
Date: Thu, 9 Mar 2023 00:25:53 +0800
Add [WRITE|READ]_ONCE for all occurrences of memcg->oom_kill_disable,
memcg->swappiness and memcg->soft_limit
Link: https://lkml.kernel.org/r/20230308162555.14195-3-findns94@xxxxxxxxx
Signed-off-by: Yue Zhao <findns94@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Tang Yizhou <tangyeechou@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/memcontrol.c~mm-memcg-prevent-memoryswappiness-load-store-tearing-v3
+++ a/mm/memcontrol.c
@@ -5353,7 +5353,7 @@ mem_cgroup_css_alloc(struct cgroup_subsy
#endif
page_counter_set_high(&memcg->swap, PAGE_COUNTER_MAX);
if (parent) {
- memcg->swappiness = mem_cgroup_swappiness(parent);
+ WRITE_ONCE(memcg->swappiness, mem_cgroup_swappiness(parent));
memcg->oom_kill_disable = parent->oom_kill_disable;
page_counter_init(&memcg->memory, &parent->memory);
_
Patches currently in -mm which might be from findns94@xxxxxxxxx are
mm-memcg-prevent-memoryoomgroup-load-store-tearing.patch
mm-memcg-prevent-memoryswappiness-load-store-tearing.patch
mm-memcg-prevent-memoryswappiness-load-store-tearing-v3.patch
mm-memcg-prevent-memoryoom_control-load-store-tearing.patch
mm-memcg-prevent-memoryoom_control-load-store-tearing-v3.patch
mm-memcg-prevent-memorysoft_limit_in_bytes-load-store-tearing.patch
mm-memcg-prevent-memorysoft_limit_in_bytes-load-store-tearing-v3.patch
