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From: Tim Chen <tim.c.chen@linux.intel.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.cz>,
	Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Ying Huang <ying.huang@intel.com>,
	linux-mm@kvack.org, cgroups@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/3] Soft limit memory management bug fixes
Date: Wed, 17 Feb 2021 12:41:33 -0800	[thread overview]
Message-ID: <cover.1613584277.git.tim.c.chen@linux.intel.com> (raw)

During testing of tiered memory management based on memory soft limit,
I found three issues with memory management using cgroup based soft
limit in the mainline code.  Fix the issues with the three patches in
this series.  Also updated patch 3 per Johannes' comments on the first
version of this patch.

Thanks.

Tim

Changelog:
v2
1. Do soft limit tree uncharge update in batch of the same node only
for v1 cgroups that have a soft limit.  Batching in nodes is only
relevant for cgroup v1 that has per node soft limit tree. 

Tim Chen (3):
  mm: Fix dropped memcg from mem cgroup soft limit tree
  mm: Force update of mem cgroup soft limit tree on usage excess
  mm: Fix missing mem cgroup soft limit tree updates

 mm/memcontrol.c | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

-- 
2.20.1



             reply	other threads:[~2021-02-17 21:41 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-17 20:41 Tim Chen [this message]
2021-02-17 20:41 ` [PATCH v2 1/3] mm: Fix dropped memcg from mem cgroup soft limit tree Tim Chen
2021-02-18  8:24   ` Michal Hocko
2021-02-18 18:30     ` Tim Chen
2021-02-18 19:13       ` Michal Hocko
2021-02-18 19:51         ` Tim Chen
2021-02-18 19:13   ` Michal Hocko
2021-03-04 17:35     ` Tim Chen
2021-03-05  9:11       ` Michal Hocko
2021-03-05 19:07         ` Tim Chen
2021-03-08  8:34           ` Michal Hocko
2021-02-17 20:41 ` [PATCH v2 2/3] mm: Force update of mem cgroup soft limit tree on usage excess Tim Chen
2021-02-19  9:11   ` Michal Hocko
2021-02-19 18:59     ` Tim Chen
2021-02-20 16:23       ` Tim Chen
2021-02-22  8:40       ` Michal Hocko
2021-02-22 17:41         ` Tim Chen
2021-02-22 19:09           ` Michal Hocko
2021-02-22 19:23             ` Tim Chen
2021-02-22 19:48             ` Tim Chen
2021-02-24 11:53               ` Michal Hocko
2021-02-25 22:48                 ` Tim Chen
2021-02-26  8:52                   ` Michal Hocko
2021-02-27  0:56                     ` Tim Chen
2021-03-01  7:39                       ` Michal Hocko
2021-02-25 22:25           ` Tim Chen
2021-03-02  6:25   ` [mm] 4f09feb8bf: vm-scalability.throughput -4.3% regression kernel test robot
2021-02-17 20:41 ` [PATCH v2 3/3] mm: Fix missing mem cgroup soft limit tree updates Tim Chen
2021-02-18  5:56   ` Johannes Weiner
2021-02-22 18:38     ` Tim Chen
2021-02-23 15:18       ` Johannes Weiner
2021-02-19  9:16   ` Michal Hocko
2021-02-19 19:28     ` Tim Chen
2021-02-22  8:41       ` Michal Hocko
2021-02-22 17:45         ` Tim Chen

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