linux-kernel - Re: [PATCH] crypto: nx

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Message-ID: <20130814104937.GC13403@gondor.apana.org.au>
Date:	Wed, 14 Aug 2013 20:49:40 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Marcelo Cerri <mhcerri@...ux.vnet.ibm.com>
Cc:	benh@...nel.crashing.org, linux-kernel@...r.kernel.org,
	linux-crypto@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] crypto: nx - fix concurrency issue

On Mon, Aug 12, 2013 at 06:49:37PM -0300, Marcelo Cerri wrote:
> The NX driver uses the transformation context to store several fields
> containing data related to the state of the operations in progress.
> Since a single tfm can be used by different kernel threads at the same
> time, we need to protect the data stored into the context.
> 
> This patch makes use of spin locks to protect the data where a race
> condition can happen.
> 
> Reviewed-by: Fionnuala Gunter <fin@...ux.vnet.ibm.com>
> Reviewed-by: Joy Latten <jmlatten@...ux.vnet.ibm.com>
> Signed-off-by: Marcelo Cerri <mhcerri@...ux.vnet.ibm.com>

Patch applied.  Thanks a lot!
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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