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[23.128.96.19]) by mx.google.com with ESMTPS id y14-20020a17090ad70e00b001bd14e0306csi1243408pju.68.2022.03.16.21.22.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Mar 2022 21:22:16 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=M6bubW+a; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id F380DD762F; Wed, 16 Mar 2022 20:55:45 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346386AbiCOJJ4 (ORCPT + 99 others); Tue, 15 Mar 2022 05:09:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51366 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235268AbiCOJJy (ORCPT ); Tue, 15 Mar 2022 05:09:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 438F81E3F6 for ; Tue, 15 Mar 2022 02:08:43 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DD98B61586 for ; Tue, 15 Mar 2022 09:08:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7377DC340E8; Tue, 15 Mar 2022 09:08:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647335322; bh=00Z/aPEqMpUYQEYLBU8TquCbkMu9mw2X8SAwjRv70x4=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=M6bubW+a6KhUJ/8q1M+IqR9GQQPp9ygnCSmcg1k7QRJskisgwGk7BdLojd/CKBsN6 SWVQH2nEXSgBI8oVCHdpXR/nxHGHzmHQz2fY5BwogZqtPeZgjtKhTS2IcVOPEMMdHd cUl50/L8xVDYSLU4bXkJ4JxyG+DAmZvjXPHF+3/zd0/8M0H3OuR+k3ZzvVnhjgY90l YuZgx+hpEkUuFeJexQb87DlZwuCqzPNBB+odhoI79ZVxmAcjqo1jbqbb3isBYFg/sn RydA/c56HoKY6Db5JSDIfbnyoLPuT4i1fRZTpqBvn+ZRH1WcO6jlCqOSkGyJajQ3cp 73wy7RVALBNsQ== Message-ID: <37668a23-5b56-015b-fb9b-fd8acb0fd9b7@kernel.org> Date: Tue, 15 Mar 2022 17:08:39 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.6.2 Subject: Re: [PATCH 1/2] erofs: clean up z_erofs_extent_lookback Content-Language: en-US To: Gao Xiang , linux-erofs@lists.ozlabs.org Cc: LKML References: <20220310182743.102365-1-hsiangkao@linux.alibaba.com> From: Chao Yu In-Reply-To: <20220310182743.102365-1-hsiangkao@linux.alibaba.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3.8 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, NICE_REPLY_A,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022/3/11 2:27, Gao Xiang wrote: > Avoid the unnecessary tail recursion since it can be converted into > a loop directly in order to prevent potential stack overflow. > > It's a pretty straightforward conversion. > > Signed-off-by: Gao Xiang Reviewed-by: Chao Yu Thanks,