From: Peter Zijlstra <peterz@infradead.org>
To: Yang Yingliang <yangyingliang@huaweicloud.com>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com,
juri.lelli@redhat.com, vincent.guittot@linaro.org,
dietmar.eggemann@arm.com, rostedt@goodmis.org,
bsegall@google.com, mgorman@suse.de, bristot@redhat.com,
vschneid@redhat.com, tglx@linutronix.de, yu.c.chen@intel.com,
tim.c.chen@linux.intel.com, yangyingliang@huawei.com,
liwei391@huawei.com
Subject: Re: [PATCH 0/4] sched/smt: Fix error handling in sched_cpu_deactivate()
Date: Tue, 16 Jul 2024 11:54:18 +0200 [thread overview]
Message-ID: <20240716095418.GD26750@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20240703031610.587047-1-yangyingliang@huaweicloud.com>
On Wed, Jul 03, 2024 at 11:16:06AM +0800, Yang Yingliang wrote:
> From: Yang Yingliang <yangyingliang@huawei.com>
>
> sched_smt_present decrement and set_rq_offline() is called before
> cpuset_cpu_inactive(), if cpuset_cpu_inactive() fails, these two
> things need be rollback.
>
> Yang Yingliang (4):
> sched/smt: Introduce sched_smt_present_inc/dec() helper
> sched/smt: fix unbalance sched_smt_present dec/inc
> sched/core: Introduce sched_set_rq_on/offline() helper
> sched/core: fix unbalance set_rq_online/offline() in
> sched_cpu_deactivate()
>
> kernel/sched/core.c | 68 +++++++++++++++++++++++++++++++--------------
> 1 file changed, 47 insertions(+), 21 deletions(-)
Thanks!
prev parent reply other threads:[~2024-07-16 9:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-03 3:16 [PATCH 0/4] sched/smt: Fix error handling in sched_cpu_deactivate() Yang Yingliang
2024-07-03 3:16 ` [PATCH 1/4] sched/smt: Introduce sched_smt_present_inc/dec() helper Yang Yingliang
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Yang Yingliang
2024-07-03 3:16 ` [PATCH 2/4] sched/smt: fix unbalance sched_smt_present dec/inc Yang Yingliang
2024-07-29 10:34 ` [tip: sched/core] sched/smt: Fix " tip-bot2 for Yang Yingliang
2024-07-03 3:16 ` [PATCH 3/4] sched/core: Introduce sched_set_rq_on/offline() helper Yang Yingliang
2024-07-16 13:22 ` Markus Elfring
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Yang Yingliang
2024-07-03 3:16 ` [PATCH 4/4] sched/core: fix unbalance set_rq_online/offline() in sched_cpu_deactivate() Yang Yingliang
2024-07-29 10:34 ` [tip: sched/core] sched/core: Fix " tip-bot2 for Yang Yingliang
2024-07-16 9:54 ` Peter Zijlstra [this message]
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