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Date: Tue, 17 May 2011 17:27:42 +0200
From: Tejun Heo <tj@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jens Axboe <axboe@kernel.dk>, Sitsofe Wheeler <sitsofe@yahoo.com>,
        Borislav Petkov <bp@alien8.de>, Meelis Roos <mroos@linux.ee>,
        Andrew Morton <akpm@linux-foundation.org>,
        Kay Sievers <kay.sievers@vrfy.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND 2/3 v2.6.39-rc7] block: make disk_block_events()
 properly wait for work cancellation
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Hello,

On Tue, May 17, 2011 at 08:15:38AM -0700, Linus Torvalds wrote:
> Semantically what it is is a LOCK.

Okay, an outer mutex then.

> You want the locking for the whole "do I need to wait for the
> completion" thing anyway, so why mess things up?

Spinlock inside mutex seemed a bit strange but yeah that probably is
the simpliest way.

Thanks.

-- 
tejun