From: Joe Thornber <thornber@redhat.com>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: device-mapper development <dm-devel@redhat.com>,
"Alasdair G. Kergon" <agk@redhat.com>
Subject: Re: [PATCH] Remove the spinlock protecting the pages allocation
Date: Thu, 26 May 2011 13:52:31 +0100 [thread overview]
Message-ID: <1306414351.3179.2.camel@ubuntu> (raw)
In-Reply-To: <Pine.LNX.4.64.1105260848230.25456@hs20-bc2-1.build.redhat.com>
On Thu, 2011-05-26 at 08:50 -0400, Mikulas Patocka wrote:
> There is another spinlock, kc->job_lock, that is taken each time
> someone
> pushes or pops some work for the worker thread.
>
> Once we take kc->job_lock, we guarantee that any written memory is
> visible to the other CPUs.
Good, thanks.
prev parent reply other threads:[~2011-05-26 12:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-19 16:58 [PATCH] Remove the spinlock protecting the pages allocation Mikulas Patocka
2011-05-23 8:59 ` Joe Thornber
2011-05-26 12:50 ` Mikulas Patocka
2011-05-26 12:52 ` Joe Thornber [this message]
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