linux-kernel - Re: [PATCH v4 1/3] task_work_add: generic process-context callbacks

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Message-ID: <20120417161601.GA14527@redhat.com>
Date:	Tue, 17 Apr 2012 18:16:01 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	David Howells <dhowells@...hat.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Alexander Gordeev <agordeev@...hat.com>,
	Chris Zankel <chris@...kel.net>,
	David Smith <dsmith@...hat.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Larry Woodman <lwoodman@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/3] task_work_add: generic process-context callbacks

On 04/17, David Howells wrote:
>
> Oleg Nesterov <oleg@...hat.com> wrote:
>
> > tsk is always "current", probably this should be documented, I'll add
> > the comment.
>
> If tsk is always current, then don't pass it as a parameter.

This is already changed, I removed this arg.

> Some arches keep
> current in a register and it's much more efficient to use current directly in
> those cases

OK, thanks.

Oleg.

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