linux-kernel - Re: 2.6.24-rc2-mm1: kcryptd vs lockdep

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Message-Id: <E1Ivoee-0006dq-00@gondolin.me.apana.org.au>
Date:	Sat, 24 Nov 2007 14:38:16 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	agk@...hat.com (Alasdair G Kergon)
Cc:	just.for.lkml@...glemail.com, mbroz@...hat.com, mingo@...e.hu,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: 2.6.24-rc2-mm1: kcryptd vs lockdep

Alasdair G Kergon <agk@...hat.com> wrote:
> Also io->pending may need better protection - atomic, but missing memory
> barriers?  (May be getting away without sometimes due to side-effects of
> other function calls, but needs doing properly.)

If it's using atomic_dec_and_test then that comes with an implicit
memory barrier.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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