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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id f8-20020a056402150800b00568213e30dasi420712edw.377.2024.03.08.20.28.01 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Mar 2024 20:28:01 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-97767-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=huaweicloud.com); spf=pass (google.com: domain of linux-kernel+bounces-97767-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-97767-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id A746C1F217C3 for ; Sat, 9 Mar 2024 04:28:01 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 26DDF3613E; Sat, 9 Mar 2024 04:27:51 +0000 (UTC) Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 418953612D; Sat, 9 Mar 2024 04:27:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709958470; cv=none; b=gEleJ+eqx8Q4lk5hX0qJ7CR6K+WOH+uOSDLdW6agpiuSFdqVALZ6brP+6pfbK+CnaBLcwCK2I4ggQD8cZIa4y6AGymHeEJzuraJ8UJOswvhCKgfVIVS59YkPNTT/RofKv4VSv6GhgX03E5n/dlUIGYLwR74ytiB2WGyOd/6D2eQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709958470; c=relaxed/simple; bh=s9lzqrPDk9j8gcGT1nVVajiJKR4b1xN8/LcICY6fQy4=; h=Subject:To:Cc:References:From:Message-ID:Date:MIME-Version: In-Reply-To:Content-Type; b=tDiZswnmRx8k9ZFJWhC+Y8tlGOKuKCSJ4vaH47GlQBQLtYZV6z8Xi+E1rfezI5+rFpkJ1brpQV1KxAjxBp0RaA38ilHngyLospqhdgzyWDNRB57+15kOsI7fbqgCb+4RGmeCMOc+d7MvVa+sbKnza5HN0BIYq4/LYxRJL+Y/W4Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4Ts94T1wWYz4f3l1W; Sat, 9 Mar 2024 12:27:37 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.252]) by mail.maildlp.com (Postfix) with ESMTP id D764C1A0172; Sat, 9 Mar 2024 12:27:44 +0800 (CST) Received: from [10.174.176.117] (unknown [10.174.176.117]) by APP3 (Coremail) with SMTP id _Ch0CgC3w5tA5etlC_4kGQ--.6806S2; Sat, 09 Mar 2024 12:27:44 +0800 (CST) Subject: Re: [PATCH v2 3/6] virtiofs: factor out more common methods for argbuf To: Miklos Szeredi Cc: linux-fsdevel@vger.kernel.org, Vivek Goyal , Stefan Hajnoczi , Bernd Schubert , "Michael S . Tsirkin" , Matthew Wilcox , Benjamin Coddington , linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, houtao1@huawei.com References: <20240228144126.2864064-1-houtao@huaweicloud.com> <20240228144126.2864064-4-houtao@huaweicloud.com> From: Hou Tao Message-ID: <4eed238d-f6c1-f170-797f-5b4b172b59e4@huaweicloud.com> Date: Sat, 9 Mar 2024 12:27:44 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-CM-TRANSID:_Ch0CgC3w5tA5etlC_4kGQ--.6806S2 X-Coremail-Antispam: 1UD129KBjvdXoWrtFW3Gr1fKF48XF45Zr4rGrg_yoW3AFX_uF Wvkry5JayUG3WfAr4kAr1agwsrCayftF109343A3929F15GFWYvF1xXryFg3Z8Xa17Ar47 GrW3tan5trySgjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbxkYFVCjjxCrM7AC8VAFwI0_Gr0_Xr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxV AFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2 j2WlYx0E2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7x kEbVWUJVW8JwACjcxG0xvEwIxGrwACI402YVCY1x02628vn2kIc2xKxwCYjI0SjxkI62AI 1cAE67vIY487MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I 8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8 ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x 0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Gr0_Zr1lIxAIcVC2z280aVAFwI0_ Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU1 89N3UUUUU== X-CM-SenderInfo: xkrx3t3r6k3tpzhluzxrxghudrp/ Hi, On 3/1/2024 10:24 PM, Miklos Szeredi wrote: > On Wed, 28 Feb 2024 at 15:41, Hou Tao wrote: >> From: Hou Tao >> >> Factor out more common methods for bounce buffer of fuse args: >> >> 1) virtio_fs_argbuf_setup_sg: set-up sgs for bounce buffer >> 2) virtio_fs_argbuf_copy_from_in_arg: copy each in-arg to bounce buffer >> 3) virtio_fs_argbuf_out_args_offset: calc the start offset of out-arg >> 4) virtio_fs_argbuf_copy_to_out_arg: copy bounce buffer to each out-arg >> >> These methods will be used to implement bounce buffer backed by >> scattered pages which are allocated separatedly. > Why is req->argbuf not changed to being typed? Will update in next revision. Thanks for the suggestion. > > Thanks, > Miklos