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From: Peter Zijlstra <peterz@infradead.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>, Will Deacon <will@kernel.org>,
	Waiman Long <longman@redhat.com>,
	Boqun Feng <boqun.feng@gmail.com>
Subject: Re: locking/mutex: Fix non debug version of mutex_lock_io_nested()
Date: Mon, 22 Mar 2021 10:01:32 +0100	[thread overview]
Message-ID: <YFhc7CvSdPULqZ/Q@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <878s6fshii.fsf@nanos.tec.linutronix.de>

On Mon, Mar 22, 2021 at 09:46:13AM +0100, Thomas Gleixner wrote:
> If CONFIG_DEBUG_LOCK_ALLOC=n then mutex_lock_io_nested() maps to
> mutex_lock() which is clearly wrong because mutex_lock() lacks the
> io_schedule_prepare()/finish() invocations.
> 
> Map it to mutex_lock_io().

Thanks!

  reply	other threads:[~2021-03-22  9:02 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-22  8:46 Thomas Gleixner
2021-03-22  9:01 ` Peter Zijlstra [this message]
2021-03-23  8:16 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-03-23 11:25 ` [tip: locking/urgent] " tip-bot2 for Thomas Gleixner

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