linux-kernel - TIF_NOTIFY_RESUME [was Re: [PATCH v2 1/2] task_work_queue: add generic process-context callbacks]

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Message-ID: <9335.1334223342@redhat.com>
Date:	Thu, 12 Apr 2012 10:35:42 +0100
From:	David Howells <dhowells@...hat.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	dhowells@...hat.com, Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Smith <dsmith@...hat.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Larry Woodman <lwoodman@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	geert@...ux-m68k.org, chris@...kel.net
Subject: TIF_NOTIFY_RESUME [was Re: [PATCH v2 1/2] task_work_queue: add generic process-context callbacks]


Oleg Nesterov <oleg@...hat.com> wrote:

> +#ifdef TIF_NOTIFY_RESUME

If we're going to keep this feature, I wonder if it's worth just requiring the
arches lacking this feature to add it at this point, rather than adding all
this conditional logic.

It doesn't look like it should be too hard for m68k, but xtensa looks tricky.

David
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