linux-kernel - Re: [PATCH v9 03/19] qspinlock: Add pending bit

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Message-ID: <20140418163543.GA6208@phenom.dumpdata.com>
Date:	Fri, 18 Apr 2014 12:35:43 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Waiman Long <waiman.long@...com>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-arch@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org,
	xen-devel@...ts.xenproject.org, kvm@...r.kernel.org,
	Paolo Bonzini <paolo.bonzini@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Rik van Riel <riel@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Gleb Natapov <gleb@...hat.com>,
	Scott J Norton <scott.norton@...com>,
	Chegu Vinod <chegu_vinod@...com>
Subject: Re: [PATCH v9 03/19] qspinlock: Add pending bit

On Fri, Apr 18, 2014 at 12:23:29PM -0400, Waiman Long wrote:
> On 04/18/2014 03:42 AM, Ingo Molnar wrote:
> >* Waiman Long<Waiman.Long@...com>  wrote:
> >
> >>Because the qspinlock needs to touch a second cacheline; add a pending
> >>bit and allow a single in-word spinner before we punt to the second
> >>cacheline.
> >>
> >>Signed-off-by: Peter Zijlstra<peterz@...radead.org>
> >>Signed-off-by: Waiman Long<Waiman.Long@...com>
> >This patch should have a "From: Peter" in it as well, right?
> >
> >Thanks,
> >
> >	Ingo
> 
> Do you mean a "From:" line in the mail header? It will be a bit hard
> to have different "From:" header in the same patch series. I can
> certainly do that if there is an easy way to do it.

It is pretty easy.

Just do 'git commit --amend --author "The Right Author"' and when
you send the patches (git send-email) it will include that.

> 
> -Longman
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