From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org,
tglx@linutronix.de
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: Re: [PATCH 0/8] kernel/fork: Move thread stack free otu of the scheduler path.
Date: Mon, 13 Dec 2021 15:18:32 +0000 [thread overview]
Message-ID: <YbdkSLFdBL/xeRbA@linutronix.de> (raw)
In-Reply-To: <20211203162211.qvcnvbj4cdsa5g3a@linutronix.de>
On 2021-12-03 17:22:13 [+0100], To linux-kernel@vger.kernel.org wrote:
> On 2021-11-18 15:38:50 [+0100], To linux-kernel@vger.kernel.org wrote:
> > + tglx.
> >
> > It starts at
> > https://lore.kernel.org/all/20211118143452.136421-1-bigeasy@linutronix.de/
> >
> > On 2021-11-18 15:34:44 [+0100], To linux-kernel@vger.kernel.org wrote:
> > >
> > > This is a follup-up on the patch
> > > sched: Delay task stack freeing on RT
> > > https://lkml.kernel.org/r/20210928122411.593486363@linutronix.de
> > >
> > > It addresses the review feedback:
> > > - Decouple stack accounting from its free invocation. The accounting
> > > happens in do_exit(), the final free call happens later.
> > >
> > > - Add put_task_stack_sched() to finish_task_switch(). Here the VMAP
> > > stack is cached only. If it fails, or in the !VMAP case then the final
> > > free happens in delayed_put_task_struct(). This is also an oportunity
> > > to cache the stack.
>
> ping ;)
ping.
Sebastian
WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org,
tglx@linutronix.de
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: Re: [PATCH 0/8] kernel/fork: Move thread stack free otu of the scheduler path.
Date: Mon, 13 Dec 2021 16:18:32 +0100 [thread overview]
Message-ID: <YbdkSLFdBL/xeRbA@linutronix.de> (raw)
In-Reply-To: <20211203162211.qvcnvbj4cdsa5g3a@linutronix.de>
On 2021-12-03 17:22:13 [+0100], To linux-kernel@vger.kernel.org wrote:
> On 2021-11-18 15:38:50 [+0100], To linux-kernel@vger.kernel.org wrote:
> > + tglx.
> >
> > It starts at
> > https://lore.kernel.org/all/20211118143452.136421-1-bigeasy@linutronix.de/
> >
> > On 2021-11-18 15:34:44 [+0100], To linux-kernel@vger.kernel.org wrote:
> > >
> > > This is a follup-up on the patch
> > > sched: Delay task stack freeing on RT
> > > https://lkml.kernel.org/r/20210928122411.593486363@linutronix.de
> > >
> > > It addresses the review feedback:
> > > - Decouple stack accounting from its free invocation. The accounting
> > > happens in do_exit(), the final free call happens later.
> > >
> > > - Add put_task_stack_sched() to finish_task_switch(). Here the VMAP
> > > stack is cached only. If it fails, or in the !VMAP case then the final
> > > free happens in delayed_put_task_struct(). This is also an oportunity
> > > to cache the stack.
>
> ping ;)
ping.
Sebastian
next prev parent reply other threads:[~2021-12-13 15:18 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-18 14:34 [PATCH 0/8] kernel/fork: Move thread stack free otu of the scheduler path Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 1/8] kernel/fork: Redo ifdefs around task's handling Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 2/8] kernel/fork: Duplicate task_struct before stack allocation Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 3/8] kernel/fork, IA64: Provide a alloc_thread_stack_node() for IA64 Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 4/8] kernel/fork: Don't assign the stack pointer in dup_task_struct() Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 5/8] kernel/fork: Move memcg_charge_kernel_stack() into CONFIG_VMAP_STACK Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 6/8] kernel/fork: Move task stack account to do_exit() Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 7/8] kernel/fork: Only cache the VMAP stack in finish_task_switch() Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:34 ` [PATCH 8/8] kernel/fork: Use IS_ENABLED() in account_kernel_stack() Sebastian Andrzej Siewior
2021-11-18 14:34 ` Sebastian Andrzej Siewior
2021-11-18 14:38 ` [PATCH 0/8] kernel/fork: Move thread stack free otu of the scheduler path Sebastian Andrzej Siewior
2021-11-18 14:38 ` Sebastian Andrzej Siewior
2021-12-03 16:22 ` Sebastian Andrzej Siewior
2021-12-03 16:22 ` Sebastian Andrzej Siewior
2021-12-13 15:18 ` Sebastian Andrzej Siewior [this message]
2021-12-13 15:18 ` Sebastian Andrzej Siewior
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YbdkSLFdBL/xeRbA@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=bristot@redhat.com \
--cc=bsegall@google.com \
--cc=dietmar.eggemann@arm.com \
--cc=juri.lelli@redhat.com \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=vincent.guittot@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.