From: Peter Zijlstra <peterz@infradead.org>
To: Kirill Tkhai <ktkhai@parallels.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
tkhai@yandex.ru
Subject: Re: [PATCH] sched/core: Create new task with twice disabled preemption
Date: Thu, 13 Feb 2014 17:00:13 +0100 [thread overview]
Message-ID: <20140213160013.GE6835@laptop.programming.kicks-ass.net> (raw)
In-Reply-To: <1392306716.5384.3.camel@tkhai>
On Thu, Feb 13, 2014 at 07:51:56PM +0400, Kirill Tkhai wrote:
> For archs without __ARCH_WANT_UNLOCKED_CTXSW set this means
> that all newly created tasks execute finish_arch_post_lock_switch()
> and post_schedule() with preemption enabled.
That's IA64 and MIPS; do they have a 'good' reason to use this?
That is; the alternative is to fix those two archs and remove the
__ARCH_WANT_UNLOCKED_CTXSW clutter alltogether; which seems like a big
win to me.
next prev parent reply other threads:[~2014-02-13 16:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-13 15:51 Kirill Tkhai
2014-02-13 16:00 ` Peter Zijlstra [this message]
2014-02-13 17:32 ` Kirill Tkhai
2014-02-14 10:52 ` Catalin Marinas
2014-02-14 11:16 ` Kirill Tkhai
2014-02-14 12:21 ` Catalin Marinas
2014-02-14 12:33 ` Kirill Tkhai
2014-02-17 9:37 ` Martin Schwidefsky
2014-02-17 10:40 ` Catalin Marinas
2014-02-17 12:55 ` Martin Schwidefsky
2014-02-14 12:35 ` Catalin Marinas
2014-02-14 12:44 ` Kirill Tkhai
2014-02-14 15:49 ` Catalin Marinas
2014-02-17 14:43 ` Kirill Tkhai
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