From: Steven Rostedt <rostedt@goodmis.org>
To: Juri Lelli <juri.lelli@redhat.com>
Cc: peterz@infradead.org, mingo@redhat.com,
linux-kernel@vger.kernel.org, luca.abeni@santannapisa.it,
claudio@evidence.eu.com, tommaso.cucinotta@santannapisa.it,
bristot@redhat.com, mathieu.poirier@linaro.org,
lizefan@huawei.com, cgroups@vger.kernel.org
Subject: Re: [PATCH v4 3/5] sched/core: Streamlining calls to task_rq_unlock()
Date: Thu, 14 Jun 2018 09:42:42 -0400 [thread overview]
Message-ID: <20180614094242.36127604@gandalf.local.home> (raw)
In-Reply-To: <20180613121711.5018-4-juri.lelli@redhat.com>
On Wed, 13 Jun 2018 14:17:09 +0200
Juri Lelli <juri.lelli@redhat.com> wrote:
> From: Mathieu Poirier <mathieu.poirier@linaro.org>
>
> Calls to task_rq_unlock() are done several times in function
> __sched_setscheduler(). This is fine when only the rq lock needs to be
> handled but not so much when other locks come into play.
>
> This patch streamlines the release of the rq lock so that only one
> location need to be modified when dealing with more than one lock.
>
> No change of functionality is introduced by this patch.
>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-- Steve
next prev parent reply other threads:[~2018-06-14 13:42 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-13 12:17 [PATCH v4 0/5] sched/deadline: fix cpusets bandwidth accounting Juri Lelli
2018-06-13 12:17 ` [PATCH v4 1/5] sched/topology: Add check to backup comment about hotplug lock Juri Lelli
2018-06-14 13:33 ` Steven Rostedt
2018-06-14 13:42 ` Juri Lelli
2018-06-14 13:47 ` Steven Rostedt
2018-06-14 13:50 ` Juri Lelli
2018-06-14 13:58 ` Quentin Perret
2018-06-14 14:11 ` Juri Lelli
2018-06-14 14:18 ` Quentin Perret
2018-06-14 14:30 ` Juri Lelli
2018-06-15 8:39 ` Quentin Perret
2018-06-13 12:17 ` [PATCH v4 2/5] sched/topology: Adding function partition_sched_domains_locked() Juri Lelli
2018-06-14 13:35 ` Steven Rostedt
2018-06-14 13:47 ` Juri Lelli
2018-06-13 12:17 ` [PATCH v4 3/5] sched/core: Streamlining calls to task_rq_unlock() Juri Lelli
2018-06-14 13:42 ` Steven Rostedt [this message]
2018-06-13 12:17 ` [PATCH v4 4/5] sched/core: Prevent race condition between cpuset and __sched_setscheduler() Juri Lelli
2018-06-14 13:45 ` Steven Rostedt
2018-06-14 13:51 ` Juri Lelli
2018-06-14 20:11 ` Steven Rostedt
2018-06-15 7:01 ` Juri Lelli
2018-06-15 13:07 ` Juri Lelli
2018-06-13 12:17 ` [PATCH v4 5/5] cpuset: Rebuild root domain deadline accounting information Juri Lelli
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