linux-kernel - Re: sched: Fix signedness bug in yield

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Message-ID: <20130222094336.GA29235@gmail.com>
Date:	Fri, 22 Feb 2013 10:43:36 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Marcelo Tosatti <mtosatti@...hat.com>
Cc:	Shuah Khan <shuahkhan@...il.com>, dan.carpenter@...cle.com,
	peterz@...radead.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	torvalds@...ux-foundation.org
Subject: Re: sched: Fix signedness bug in yield_to()


* Marcelo Tosatti <mtosatti@...hat.com> wrote:

> On Thu, Feb 21, 2013 at 09:56:54AM +0100, Ingo Molnar wrote:
> > 
> > * Shuah Khan <shuahkhan@...il.com> wrote:
> > 
> > > On Tue, Feb 19, 2013 at 7:27 PM, Linux Kernel Mailing List
> > > <linux-kernel@...r.kernel.org> wrote:
> > > > Gitweb:     http://git.kernel.org/linus/;a=commit;h=c3c186403c6abd32e719f005f0af950155a9e54d
> > > > Commit:     c3c186403c6abd32e719f005f0af950155a9e54d
> > > > Parent:     e0a79f529d5ba2507486d498b25da40911d95cf6
> > > > Author:     Dan Carpenter <dan.carpenter@...cle.com>
> > > > AuthorDate: Tue Feb 5 14:37:51 2013 +0300
> > > > Committer:  Ingo Molnar <mingo@...nel.org>
> > > > CommitDate: Tue Feb 5 12:59:29 2013 +0100
> > > >
> > > >     sched: Fix signedness bug in yield_to()
> > > >
> > > >     In 7b270f6099 "sched: Bail out of yield_to when source and
> > > >     target runqueue has one task" we changed this to store -ESRCH so
> > > >     it needs to be signed.
> > > 
> > > Dan, Ingo,
> > > 
> > > I can't find the 7b270f6099 "sched: Bail out of yield_to when 
> > > source and target runqueue has one task" in the latest Linus's 
> > > git. Am I missing something.
> > > 
> > > The current kenel/sched/core.c doesn't have the code from the
> > > associated patch https://patchwork.kernel.org/patch/2016651/
> > 
> > As per the lkml discussion that one was supposed to go upstream 
> > via the KVM tree. Marcelo?
> 
> commit c3c186403c6abd32e719f005f0af950155a9e54d
> Author: Dan Carpenter <dan.carpenter@...cle.com>
> Date:   Tue Feb 5 14:37:51 2013 +0300
> 
>     sched: Fix signedness bug in yield_to()

I meant the other patch - the two got disassociated.

Thanks,

	Ingo
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