linux-kernel - Re: [PATCH v3 9/9] zram: use crypto decompress

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Message-ID: <20150921052918.GA5313@swordfish>
Date:	Mon, 21 Sep 2015 14:29:18 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Joonsoo Kim <js1304@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan@...nel.org>,
	Nitin Gupta <ngupta@...are.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Stephan Mueller <smueller@...onox.de>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [PATCH v3 9/9] zram: use crypto decompress_noctx API

On (09/18/15 14:19), Joonsoo Kim wrote:
> -/* Never return NULL, may sleep */
> +/* May return NULL, may sleep */
>  struct zcomp_strm *zcomp_decompress_begin(struct zcomp *comp)
>  {
> +	if (comp->tfm_noctx)
> +		return NULL;
> +
>  	return zcomp_strm_find(comp);
>  }
>  
> @@ -346,11 +349,18 @@ int zcomp_decompress(struct zcomp *comp, struct zcomp_strm *zstrm,
>  {
>  	unsigned int size = PAGE_SIZE;
>  
> +	if (!zstrm) {
> +		return crypto_comp_decompress_noctx(comp->tfm_noctx,
> +						src, src_len, dst, &size);
> +	}

unneeded braces.

	-ss
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