From: Peter Zijlstra <peterz@infradead.org>
To: Pranith Kumar <bobby.prani@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>,
"open list:SCHEDULER" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sched: Remove ACCESS_ONCE() for jiffies
Date: Tue, 12 Aug 2014 07:55:27 +0200 [thread overview]
Message-ID: <20140812055527.GI9918@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1407797503-24727-3-git-send-email-bobby.prani@gmail.com>
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On Mon, Aug 11, 2014 at 06:51:41PM -0400, Pranith Kumar wrote:
> jiffies is declared as a volatile variable. Therefore it is not neccessary to
> use ACCESS_ONCE() while reading it.
It also doesn't hurt and it documents intent, so I'm inclined to keep
it.
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next prev parent reply other threads:[~2014-08-12 5:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 22:51 [PATCH] doc: memory-barriers.txt: Minor correction in Control dependencies Pranith Kumar
2014-08-11 22:51 ` [PATCH] doc: memory-barriers.txt: Add barrier() to provide ordering Pranith Kumar
2014-08-13 22:50 ` Paul E. McKenney
2014-08-11 22:51 ` [PATCH] sched: Remove ACCESS_ONCE() for jiffies Pranith Kumar
2014-08-12 5:55 ` Peter Zijlstra [this message]
2014-08-12 14:42 ` Pranith Kumar
2014-08-12 22:11 ` David Rientjes
2014-08-11 22:51 ` [PATCH] compiler.h: Move __memory_barrier() use to compiler-intel.h Pranith Kumar
2014-08-13 22:49 ` [PATCH] doc: memory-barriers.txt: Minor correction in Control dependencies Paul E. McKenney
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