linux-kernel - Re: [PATCHSET] workqueue: concurrency managed workqueue, take#4

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Message-ID: <29029.1268232771@redhat.com>
Date:	Wed, 10 Mar 2010 14:52:51 +0000
From:	David Howells <dhowells@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	dhowells@...hat.com, torvalds@...ux-foundation.org, mingo@...e.hu,
	peterz@...radead.org, awalls@...ix.net,
	linux-kernel@...r.kernel.org, jeff@...zik.org,
	akpm@...ux-foundation.org, jens.axboe@...cle.com,
	rusty@...tcorp.com.au, cl@...ux-foundation.org,
	arjan@...ux.intel.com, avi@...hat.com, johannes@...solutions.net,
	andi@...stfloor.org, oleg@...hat.com
Subject: Re: [PATCHSET] workqueue: concurrency managed workqueue, take#4

 * queue_work - queue work on a workqueue
 * @wq: workqueue to use
 * @work: work to queue
 *
 * Returns 0 if @work was already on a queue, non-zero otherwise.
 *
 * We queue the work to the CPU on which it was submitted, but if the CPU dies
 * it can be processed by another CPU.

So when a work item is running on a CPU, any work items it queues (including
requeueing itself) will be queued upon that CPU for attention only by that CPU
(assuming that CPU doesn't get pulled out)?

David
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