linux-kernel - Re: [PATCH] perf-bench/futex: Fix hung wakeup tasks after requeueing

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Message-ID: <1429898237.10273.45.camel@stgolabs.net>
Date:	Fri, 24 Apr 2015 10:57:17 -0700
From:	Davidlohr Bueso <dave@...olabs.net>
To:	David Ahern <dsahern@...il.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>, Mel Gorman <mgorman@...e.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf-bench/futex: Fix hung wakeup tasks after requeueing

On Fri, 2015-04-24 at 11:50 -0600, David Ahern wrote:
> On 4/24/15 11:00 AM, Davidlohr Bueso wrote:
> > This bug, while perhaps suggesting missing wakeups in kernel futex
> > code, is merely a consequence of the crappy FUTEX_CMP_REQUEUE man
> > page, incorrectly mentioning that the number of requeued tasks is
> > in fact returned, not the wakeups. This patch acknowledges this
> > and updates the corresponding futex_wake code around it.
> 
> Did you submit an update to fix the crappy man page?

There is a major manpage rewrite going on. Hopefully Michael will merge
it soon.

Thanks,
Davidlohr


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