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From: Peter Zijlstra <peterz@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Dmitry Vyukov <dvyukov@google.com>,
	Clark Williams <williams@redhat.com>,
	Alexander Potapenko <glider@google.com>,
	kasan-dev <kasan-dev@googlegroups.com>,
	Linux-MM <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-rt-users@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] mm/kasan: make quarantine_lock a raw_spinlock_t
Date: Fri, 19 Oct 2018 12:58:51 +0200	[thread overview]
Message-ID: <20181019105851.GG3121@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20181015163529.30ed9b0ac18e20dd975f4253@linux-foundation.org>

On Mon, Oct 15, 2018 at 04:35:29PM -0700, Andrew Morton wrote:
> On Sat, 13 Oct 2018 15:50:58 +0200 Peter Zijlstra <peterz@infradead.org> wrote:
> 
> > The whole raw_spinlock_t is for RT, no other reason.
> 
> Oh.  I never realised that.
> 
> Is this documented anywhere?  Do there exist guidelines which tell
> non-rt developers and reviewers when it should be used?

I'm afraid not; I'll put it on the todo list ... I've also been working
on some lockdep validation for the lock order stuff.

      reply	other threads:[~2018-10-19 10:59 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-18 15:29 [PATCH RT] rt: convert mm/kasan/quarantine_lock to raw_spinlock Clark Williams
2018-09-18 20:34 ` kbuild test robot
2018-10-05 16:37   ` Sebastian Andrzej Siewior
2018-10-18  9:04     ` [kbuild-all] " Rong Chen
2018-10-05 16:30 ` [PATCH] kasan: convert kasan/quarantine_lock " Sebastian Andrzej Siewior
2018-10-05 16:33   ` Sebastian Andrzej Siewior
2018-10-08  0:47     ` Clark Williams
2018-10-08  9:15     ` Dmitry Vyukov
2018-10-09 14:27       ` Sebastian Andrzej Siewior
2018-10-10  8:25         ` Dmitry Vyukov
2018-10-10  9:29           ` Sebastian Andrzej Siewior
2018-10-10  9:45             ` Dmitry Vyukov
2018-10-10  9:53               ` Sebastian Andrzej Siewior
2018-10-10  9:57                 ` Dmitry Vyukov
2018-10-10 21:49                   ` [PATCH] mm/kasan: make quarantine_lock a raw_spinlock_t Sebastian Andrzej Siewior
2018-10-11  8:03                     ` Dmitry Vyukov
2018-10-12 23:56                     ` Andrew Morton
2018-10-13 13:50                       ` Peter Zijlstra
2018-10-13 13:50                         ` Peter Zijlstra
2018-10-15 23:35                         ` Andrew Morton
2018-10-19 10:58                           ` Peter Zijlstra [this message]

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