linux-kernel - [PATCH v3 0/2] Invert cpu_hotplug_lock and cpuset

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Message-Id: <1510755615-25906-1-git-send-email-prsood@codeaurora.org>
Date:   Wed, 15 Nov 2017 19:50:13 +0530
From:   Prateek Sood <prsood@...eaurora.org>
To:     peterz@...radead.org, longman@...hat.com, tj@...nel.org,
        lizefan@...wei.com, mingo@...nel.org, boqun.feng@...il.com,
        tglx@...utronix.de
Cc:     cgroups@...r.kernel.org, sramana@...eaurora.org,
        linux-kernel@...r.kernel.org, clingutla@...eaurora.org,
        prsood@...eaurora.org
Subject: [PATCH v3 0/2] Invert cpu_hotplug_lock and cpuset_mutex locking order.

This patch does following
	1- Remove circular dependency deadlock by inverting order of
cpu_hotplug_lock and cpuset_mutex.
	2- Make cpuset_hotplug_workfn() synchronous for cpu hotplug path.
For memory hotplug path it still gets queued as a work item.

Prateek Sood (2):
  cgroup/cpuset: remove circular dependency deadlock
  cpuset: Make cpuset hotplug synchronous

 include/linux/cpuset.h |  6 ----
 kernel/cgroup/cpuset.c | 94 +++++++++++++++++++++++++++-----------------------
 kernel/power/process.c |  2 --
 kernel/sched/core.c    |  1 -
 4 files changed, 50 insertions(+), 53 deletions(-)

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