linux-kernel - Re: [PATCH RESEND 2/3 v2.6.39-rc7] block: make disk_block_events() properly wait for work cancellation

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Message-ID: <20110517152742.GR20624@htj.dyndns.org>
Date:	Tue, 17 May 2011 17:27:42 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jens Axboe <axboe@...nel.dk>, Sitsofe Wheeler <sitsofe@...oo.com>,
	Borislav Petkov <bp@...en8.de>, Meelis Roos <mroos@...ux.ee>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kay Sievers <kay.sievers@...y.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND 2/3 v2.6.39-rc7] block: make disk_block_events()
 properly wait for work cancellation

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
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