From: Tejun Heo <tj@kernel.org>
To: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Alex Dubov <oakad@yahoo.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] memstick: add support for legacy memorysticks
Date: Mon, 24 Sep 2012 11:25:11 -0700 [thread overview]
Message-ID: <20120924182511.GH7694@google.com> (raw)
In-Reply-To: <1348510768.618.16.camel@maxim-laptop>
Hello,
On Mon, Sep 24, 2012 at 08:19:28PM +0200, Maxim Levitsky wrote:
> Except that if I schedule a same work item few times, these work items
> will be 'processed' in parallel, although there is just one work to do,
> work of pulling the requests from block queue until it has them, and
> dispatching them through my code.
> Or I can get a guarantee that work items wont be processed in parallel?
You need to use system_nrt_wq for that before 3.7-rc1. After 3.7-rc1,
any workqueue will guarantee that.
> Stiil, even with that only first work item will do the actual work,
> others will wake the workqueue for nothing, but I am ok with that.
It's just like waking up spuriously. The work item is guaranteed to
be executed at least once after any given schedule/queue_work() call.
Thanks.
--
tejun
next prev parent reply other threads:[~2012-09-24 18:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 13:19 Maxim Levitsky
2012-09-19 13:19 ` [PATCH] memstick: add support for legacy memorysticks Maxim Levitsky
2012-09-19 21:52 ` Andrew Morton
2012-09-20 4:05 ` Maxim Levitsky
2012-09-20 17:53 ` Tejun Heo
2012-09-24 14:59 ` Maxim Levitsky
2012-09-24 15:09 ` Maxim Levitsky
2012-09-24 18:05 ` Tejun Heo
2012-09-24 18:19 ` Maxim Levitsky
2012-09-24 18:24 ` Maxim Levitsky
2012-09-24 18:28 ` Tejun Heo
2012-09-24 18:25 ` Tejun Heo [this message]
2012-09-20 17:49 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2013-07-08 14:11 [merged] memstick-add-support-for-legacy-memorysticks.patch removed from -mm tree Maxim Levitsky
2013-07-08 20:54 ` Driver for memestick standard cards Maxim Levitsky
2013-07-08 20:54 ` [PATCH] memstick: add support for legacy memorysticks Maxim Levitsky
2013-07-11 0:28 ` Maxim Levitsky
2013-07-11 21:22 ` Andrew Morton
2013-07-17 20:35 ` Andrew Morton
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