linux-kernel - [PATCHSET] mm, memcontrol: Implement memory.swap.events

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Message-Id: <20180324165127.701194-1-tj@kernel.org>
Date:   Sat, 24 Mar 2018 09:51:25 -0700
From:   Tejun Heo <tj@...nel.org>
To:     hannes@...xchg.org, mhocko@...nel.org, vdavydov.dev@...il.com
Cc:     guro@...com, riel@...riel.com, akpm@...ux-foundation.org,
        linux-kernel@...r.kernel.org, kernel-team@...com,
        cgroups@...r.kernel.org, linux-mm@...ck.org
Subject: [PATCHSET] mm, memcontrol: Implement memory.swap.events

Hello,

This patchset implements memory.swap.events which contains max and
fail events so that userland can monitor and respond to swap running
out.  It contains the following two patches.

 0001-mm-memcontrol-Move-swap-charge-handling-into-get_swa.patch
 0002-mm-memcontrol-Implement-memory.swap.events.patch

This patchset is on top of the "cgroup/for-4.17: Make cgroup_rstat
available to controllers" patchset[1] and "mm, memcontrol: Make
cgroup_rstat available to controllers" patchset[2] and also available
in the following git branch.

 git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-memcg-swap.events

diffstat follows.

 Documentation/cgroup-v2.txt |   16 ++++++++++++++++
 include/linux/memcontrol.h  |    5 +++++
 mm/memcontrol.c             |   25 +++++++++++++++++++++++++
 mm/shmem.c                  |    4 ----
 mm/swap_slots.c             |   10 +++++++---
 mm/swap_state.c             |    3 ---
 6 files changed, 53 insertions(+), 10 deletions(-)

Thanks.

--
tejun

[1] http://lkml.kernel.org/r/20180323231313.1254142-1-tj@kernel.org
[2] http://lkml.kernel.org/r/20180324160901.512135-1-tj@kernel.org