From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 3DEF335C181 for ; Mon, 23 Mar 2026 09:44:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774259067; cv=none; b=TUqunEYvkBX8ghO5gQRmKPkp/GngH2Xn+95SOfg26byUgzPFRK0GZVn1xxAUpW6tkpG9dYk3oMyKiVbSmX7TndNI4PLQlcfTtSntIXMK7Og9ki9YBe75J7VzKHoePYEg9mtb3wdXfi4b+MeFSvZmOAeGR7dQZ+nKjtmrLrAfYgY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774259067; c=relaxed/simple; bh=rJAdK/ogPRx5IKWx8AL6KURRAQlzWUx657ZfddCtzh0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=eQ4JkoV62n2dm4vjDmIxKn+WaBt1OFceD1KxJr48DEgiZB0l1Dcqc3JsoRt15dq+plMO3q7WBOfWVH4Cl6NaiCu0gWuQlAm3EUg/zNhUq80ov39lvt1wy0Oa4GOiHh2oMDKKnh/0mSp7rJX/e+HT9KQHQW57lfD9d6Q5tJk0FZs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: dc16db76269c11f1a21c59e7364eecb8-20260323 X-CTIC-Tags: HR_CC_CHARSET, HR_CC_CHARSET_NUM, HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NAME HR_CC_NO_NAME, HR_CHARSET, HR_CHARSET_NUM, HR_CTE_8B, HR_CTT_MISS HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME, HR_SJ_DIGIT_LEN HR_SJ_LANG, HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM, HR_SJ_PHRASE HR_SJ_PHRASE_LEN, HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT, HR_TO_NAME IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_EXISTED, SN_TRUSTED SN_EXISTED, SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS, CIE_BAD CIE_GOOD, CIE_GOOD_SPF, GTI_FG_BS, GTI_RG_INFO, GTI_C_BU AMN_GOOD, ABX_MISS_RDNS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.11,REQID:337ae9fa-fd2e-44d4-a02f-0eea6ed5c4da,IP:15, URL:0,TC:0,Content:-5,EDM:-20,RT:0,SF:-5,FILE:0,BULK:0,RULE:Release_Ham,AC TION:release,TS:-15 X-CID-INFO: VERSION:1.3.11,REQID:337ae9fa-fd2e-44d4-a02f-0eea6ed5c4da,IP:15,UR L:0,TC:0,Content:-5,EDM:-20,RT:0,SF:-5,FILE:0,BULK:0,RULE:EDM_GE969F26,ACT ION:release,TS:-15 X-CID-META: VersionHash:89c9d04,CLOUDID:3459a9c1411b80ab212c4f690e93f732,BulkI D:260323174418J3AROAJ5,BulkQuantity:0,Recheck:0,SF:17|19|38|66|78|102|127| 898,TC:nil,Content:0|15|50,EDM:1,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS:n il,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC :0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_AEC,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: dc16db76269c11f1a21c59e7364eecb8-20260323 X-User: liwang@kylinos.cn Received: from computer.. [(116.128.244.171)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 1571188595; Mon, 23 Mar 2026 17:44:17 +0800 From: Li Wang To: Stefan Hajnoczi , German Maglione , Vivek Goyal , Miklos Szeredi Cc: =?UTF-8?q?Eugenio=20P=C3=A9rez?= , virtualization@lists.linux.dev, linux-fsdevel@vger.kernel.org, Li Wang Subject: [PATCH 1/3] virtiofs: Only parse the out header if the request expects a reply in virtio_fs_request_complete() Date: Mon, 23 Mar 2026 17:43:15 +0800 Message-Id: <20260323094317.46302-1-liwang@kylinos.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The value of req->out.h may be undefined when FR_ISREPLY is not set. Signed-off-by: Li Wang --- fs/fuse/virtio_fs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c index 2f7485ffac52..dec2c5a30e4e 100644 --- a/fs/fuse/virtio_fs.c +++ b/fs/fuse/virtio_fs.c @@ -789,7 +789,8 @@ static void virtio_fs_request_complete(struct fuse_req *req, struct folio *folio; args = req->args; - copy_args_from_argbuf(args, req); + if (test_bit(FR_ISREPLY, &req->flags)) + copy_args_from_argbuf(args, req); if (args->out_pages && args->page_zeroing) { len = args->out_args[args->out_numargs - 1].size; -- 2.34.1