From: Peter Zijlstra <peterz@infradead.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
pjt@google.com, paul.mckenney@linaro.org, tj@kernel.org,
mingo@redhat.com, Arvind.Chauhan@arm.com,
linaro-dev@lists.linaro.org, patches@linaro.org,
pdsw-power-team@arm.com, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org, john stultz <johnstul@us.ibm.com>
Subject: Re: [PATCH V2 Resend 4/4] timer: Migrate running timer
Date: Wed, 22 May 2013 11:06:43 +0200 [thread overview]
Message-ID: <20130522090643.GB18810@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <CAKohpokfKPQ3EhMf3WB8koXuH2rF6QoejwNOTw08X+XfnVhpEg@mail.gmail.com>
On Wed, May 22, 2013 at 02:04:16PM +0530, Viresh Kumar wrote:
> So, this is the clean draft for the idea I had.. (Naming is poor for
> now):
>
> diff --git a/include/linux/timer.h b/include/linux/timer.h
> index 8c5a197..ad00ebe 100644
> --- a/include/linux/timer.h
> +++ b/include/linux/timer.h
> @@ -20,6 +20,7 @@ struct timer_list {
>
> void (*function)(unsigned long);
> unsigned long data;
> + int wait_for_migration_to_complete;
If you play games with the alignment constraints of struct tvec_base you
can get extra low bits to play with for TIMER_FLAG_MASK. See struct
pool_workqueue for similar games.
That would avoid the struct bloat and I suppose make tglx happy :-)
next prev parent reply other threads:[~2013-05-22 9:07 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-06 10:34 [PATCH V2 Resend 0/4] Create sched_select_cpu() and use it for workqueues and timers Viresh Kumar
2012-11-06 10:38 ` [PATCH V2 Resend 1/4] sched: Create sched_select_cpu() to give preferred CPU for power saving Viresh Kumar
2012-11-06 10:38 ` [PATCH V2 Resend 2/4] timer: hrtimer: Don't check idle_cpu() before calling get_nohz_timer_target() Viresh Kumar
2012-11-06 10:38 ` [PATCH V2 Resend 3/4] workqueue: Schedule work on non-idle cpu instead of current one Viresh Kumar
2012-11-26 17:15 ` Tejun Heo
2012-11-27 5:19 ` Viresh Kumar
2012-11-27 12:54 ` Vincent Guittot
2013-01-04 11:11 ` Viresh Kumar
2013-01-04 15:09 ` Tejun Heo
2013-01-07 9:58 ` Viresh Kumar
2013-01-07 13:28 ` Steven Rostedt
2013-01-07 17:59 ` Viresh Kumar
2013-01-07 22:29 ` Steven Rostedt
2013-01-08 4:03 ` Viresh Kumar
2013-01-07 15:04 ` Tejun Heo
2013-01-07 15:40 ` Amit Kucheria
2013-01-07 18:07 ` Viresh Kumar
2013-01-09 18:49 ` Tejun Heo
2013-01-10 5:04 ` Viresh Kumar
2012-11-27 13:26 ` Steven Rostedt
2012-11-27 13:48 ` Viresh Kumar
2012-11-27 13:59 ` Steven Rostedt
2012-11-27 14:55 ` Vincent Guittot
2012-11-27 15:04 ` Steven Rostedt
2012-11-27 15:35 ` Vincent Guittot
2012-11-06 10:38 ` [PATCH V2 Resend 4/4] timer: Migrate running timer Viresh Kumar
2012-11-27 13:47 ` Steven Rostedt
2013-03-20 15:13 ` Viresh Kumar
2013-04-09 14:52 ` Viresh Kumar
2013-04-24 11:22 ` Viresh Kumar
2013-05-13 9:19 ` Viresh Kumar
2013-05-13 10:35 ` Thomas Gleixner
2013-05-22 8:34 ` Viresh Kumar
2013-05-22 9:06 ` Peter Zijlstra [this message]
2013-05-22 9:23 ` Viresh Kumar
2013-05-31 10:49 ` Viresh Kumar
2013-06-18 4:51 ` Viresh Kumar
2013-07-24 9:17 ` Viresh Kumar
2013-08-07 9:55 ` Viresh Kumar
2013-10-04 12:39 ` Sebastian Andrzej Siewior
2013-10-23 5:55 ` Viresh Kumar
2012-11-26 15:00 ` [PATCH V2 Resend 0/4] Create sched_select_cpu() and use it for workqueues and timers Viresh Kumar
2012-11-26 16:40 ` Steven Rostedt
2012-11-26 17:03 ` Paul E. McKenney
2012-11-26 17:35 ` Steven Rostedt
2012-11-26 19:03 ` Paul E. McKenney
2012-11-26 19:17 ` Steven Rostedt
2012-11-27 6:25 ` Viresh Kumar
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