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[23.128.96.18]) by mx.google.com with ESMTP id gy8si1693972ejb.451.2020.10.27.12.32.56; Tue, 27 Oct 2020 12:33:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="ZH0VX8/9"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2503813AbgJ0BWJ (ORCPT + 99 others); Mon, 26 Oct 2020 21:22:09 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:34277 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2408536AbgJ0BWJ (ORCPT ); Mon, 26 Oct 2020 21:22:09 -0400 Received: by mail-pf1-f193.google.com with SMTP id o129so1656302pfb.1; Mon, 26 Oct 2020 18:22:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=rI8te7v5ilh6pzRn0d2OmLYfZc63jY1KzGefybMeBy4=; b=ZH0VX8/9+sGfUb4G0/V2yn4UqoCEjIThPJk1zgAQE3FTpuBgJoWrSz46fWBUQdRlcj hyKFV/8XcnhoU3yFl6//DHqBBLcIMgQeoA6JUCwi/TR476A90QuQzLUsZKLlzbE8BiXn o+W3jM4O7AkahBLq4WOmja4LghnH4QpchM9GktDkbmIDQsYnzizgDu7IGeaxi9tCLCXi Cu0/YrXFGBfi92SkAOXB8CCCKvoImvSa42nN7gxzA8Uepfb6NM+DSjf8HUbqjsuLh9LU FtiAIs/W842hY825JWndVu7fr/MVvY/2WMHADkOSBXHLsrxC7yEPCQ+4tQ26M9irgkak +2ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=rI8te7v5ilh6pzRn0d2OmLYfZc63jY1KzGefybMeBy4=; b=d++bQU5k8oooyQc5By8JlQENyVviMzVRBIpq0/kr3hBYr6faycdGNLdMygx/sdgBqN 1lpqRV9/0EM69pk0Z90G8ocfxjoy9Rm9USzXHRM9B2NkkxMrw62KIQd5j6okO+PyMt1L /VAr6W/ERmayyLTY5MiaTQZ3tecRvJJXEqSCBUiKI9bmCOJ6eK8dyKNe36kCRU3lOzyA 3mICT5vMERc7iOPeMlgDMbo+hzNI08XZFMmD0e+7MSPPW1qxX5WPZev2ZmDUMlgt1TnA Xs/QAn9HvPlUVduOgJfmnjY16n+umJOhH7AOC5oyHxJ1Rj9Kpqj5PCUcLL9ixpfTi8zT kFLQ== X-Gm-Message-State: AOAM53014j7Rpu8LrmnYOp3ogtRxYisuKOU/mdowsU5KoepSC5FEsprP +oOhOOpk7OAg6MgC776Ne/+k8RU8ijc= X-Received: by 2002:a62:8744:0:b029:162:8c76:a8a1 with SMTP id i65-20020a6287440000b02901628c76a8a1mr632100pfe.54.1603761727963; Mon, 26 Oct 2020 18:22:07 -0700 (PDT) Received: from localhost ([2401:fa00:8f:203:a6ae:11ff:fe11:4b46]) by smtp.gmail.com with ESMTPSA id b1sm12696338pft.127.2020.10.26.18.22.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Oct 2020 18:22:07 -0700 (PDT) Date: Tue, 27 Oct 2020 10:22:04 +0900 From: Sergey Senozhatsky To: Rui Salvaterra Cc: minchan@kernel.org, ngupta@vflare.org, sergey.senozhatsky.work@gmail.com, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH v3] zram: break the strict dependency from lzo Message-ID: <20201027012204.GD2412725@google.com> References: <20201026085141.1179-1-rsalvaterra@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201026085141.1179-1-rsalvaterra@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (20/10/26 08:51), Rui Salvaterra wrote: > static const char * const backends[] = { > +#if IS_ENABLED(CONFIG_CRYPTO_LZO) > "lzo", > "lzo-rle", > +#endif > #if IS_ENABLED(CONFIG_CRYPTO_LZ4) > "lz4", > #endif [..] > +static const char *default_compressor = > +#if IS_ENABLED(CONFIG_CRYPTO_LZO) > + "lzo-rle"; > +#elif IS_ENABLED(CONFIG_CRYPTO_LZ4) > + "lz4"; > +#elif IS_ENABLED(CONFIG_CRYPTO_LZ4HC) > + "lz4hc"; > +#elif IS_ENABLED(CONFIG_CRYPTO_842) > + "842"; > +#elif IS_ENABLED(CONFIG_CRYPTO_ZSTD) > + "zstd"; > +#endif Honestly, I'm not entirely excited. lzo is a fallback compression algorithm. If you want to use zram with something else thenconfigure zram to use something else. What do all these #if/#elif buy us? -ss