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dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=LJncelTzrp9AqEXqxzfQQ+G5uYsWGAEctlVknBJUoGM=; b=ik301uFprwEO2LfIg9xEstBQW SWQkXg4pNo+8xU0bzA6lIKkRRiOIl/O/pBeNwurKSOcT/QbSCILZfuABOH1/+16tbOGyZyN4ebt7W RvQ++kRXAAyRfmjflDF1pYcPx5oiBRi8l5jcGAt/PDDlsvIvahSMxOXcVGGfXqVMuBjjC+A0jY0wG msPq2s7UjvM67R6xVVbfNN50GStnBt74uscWVLMpckd3gbn+hLbpuRcdteUuL/4J4lySKNKuFW/0y YdJqf4Kwph/5gyyIZXFFNSEN4Hg9LxIsMUKf0InjAQk+pJHWSZ1me3wCkqMO2We8dBR1+kJoa1GfP HZJe7+wrw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l5Knu-00038d-UR; Fri, 29 Jan 2021 03:50:38 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l5Knr-00037r-Ss for linux-nvme@lists.infradead.org; Fri, 29 Jan 2021 03:50:38 +0000 Received: from DGGEMM401-HUB.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4DRjy33vMHz5MVr; Fri, 29 Jan 2021 11:49:15 +0800 (CST) Received: from dggema772-chm.china.huawei.com (10.1.198.214) by DGGEMM401-HUB.china.huawei.com (10.3.20.209) with Microsoft SMTP Server (TLS) id 14.3.498.0; Fri, 29 Jan 2021 11:50:29 +0800 Received: from [10.169.42.93] (10.169.42.93) by dggema772-chm.china.huawei.com (10.1.198.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2106.2; Fri, 29 Jan 2021 11:50:28 +0800 Subject: Re: [PATCH v4 4/5] nvme-rdma: avoid IO error for nvme native multipath To: Sagi Grimberg , References: <20210126081539.13320-1-lengchao@huawei.com> <20210126081539.13320-5-lengchao@huawei.com> <5a368693-65fd-1bdf-924a-f90df7f59b2a@grimberg.me> <9c30b18a-6fdd-be1c-f3bc-1d44c35ae274@huawei.com> <29ccc5e0-66e9-93db-e9b9-09012f1c8fe2@huawei.com> <1651456a-3251-77db-42c9-fc1a2d2c5c13@grimberg.me> From: Chao Leng Message-ID: <871fd11a-b4e7-aa63-97f0-be483b3e1f9e@huawei.com> Date: Fri, 29 Jan 2021 11:50:28 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Originating-IP: [10.169.42.93] X-ClientProxiedBy: dggeme714-chm.china.huawei.com (10.1.199.110) To dggema772-chm.china.huawei.com (10.1.198.214) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210128_225037_041732_4107A513 X-CRM114-Status: GOOD ( 11.14 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kbusch@kernel.org, axboe@fb.com, linux-block@vger.kernel.org, hch@lst.de, axboe@kernel.dk Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org CgpPbiAyMDIxLzEvMjkgMTE6MzcsIFNhZ2kgR3JpbWJlcmcgd3JvdGU6Cj4gCj4+Pj4gZGlmZiAt LWdpdCBhL2RyaXZlcnMvbnZtZS9ob3N0L3JkbWEuYyBiL2RyaXZlcnMvbnZtZS9ob3N0L3JkbWEu Ywo+Pj4+IGluZGV4IGI3Y2U0ZjIyMWQ5OS4uNjZiNjk3NDYxYmQ5IDEwMDY0NAo+Pj4+IC0tLSBh L2RyaXZlcnMvbnZtZS9ob3N0L3JkbWEuYwo+Pj4+ICsrKyBiL2RyaXZlcnMvbnZtZS9ob3N0L3Jk bWEuYwo+Pj4+IEBAIC0yMDg0LDggKzIwODQsMTMgQEAgc3RhdGljIGJsa19zdGF0dXNfdCBudm1l X3JkbWFfcXVldWVfcnEoc3RydWN0IGJsa19tcV9od19jdHggKmhjdHgsCj4+Pj4KPj4+PiDCoMKg wqDCoMKgwqDCoMKgIGVyciA9IG52bWVfcmRtYV9wb3N0X3NlbmQocXVldWUsIHNxZSwgcmVxLT5z Z2UsIHJlcS0+bnVtX3NnZSwKPj4+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqAgcmVxLT5tciA/ICZyZXEtPnJlZ193ci53ciA6IE5VTEwpOwo+Pj4+IC3C oMKgwqDCoMKgwqAgaWYgKHVubGlrZWx5KGVycikpCj4+Pj4gK8KgwqDCoMKgwqDCoCBpZiAodW5s aWtlbHkoZXJyKSkgewo+Pj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIGlmIChlcnIg PT0gLUVJTykgewo+Pj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoCBudm1lX2NvbXBsZXRlX2ZhaWxlZF9ycShycSwgTlZNRV9TQ19IT1NUX1BBVEhfRVJST1Ip Owo+Pj4KPj4+IEkgd2FzIHRoaW5raW5nIGFib3V0Ogo+Pj4gLS0gCj4+PiDCoMKgwqDCoMKgwqDC oMKgIGVyciA9IG52bWVfcmRtYV9wb3N0X3NlbmQocXVldWUsIHNxZSwgcmVxLT5zZ2UsIHJlcS0+ bnVtX3NnZSwKPj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoCByZXEtPm1yID8gJnJlcS0+cmVnX3dyLndyIDogTlVMTCk7Cj4+PiDCoMKgwqDCoMKgwqDC oMKgIGlmICh1bmxpa2VseShlcnIpKSB7Cj4+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoCBpZiAoZXJyID09IC1FSU8pIHsKPj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoCAvKgo+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqAgKiBGYWlsIHRoZSByZXVxZXN0IHNvIHVwcGVyIGxheWVyIGNh biBmYWlsb3ZlciBJL08KPj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgICogaWYgYW5vdGhlciBwYXRoIGlzIGF2YWlsYWJsZQo+Pj4gwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKi8KPj4+IMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCByZXEtPnN0YXR1cyA9IE5W TUVfU0NfSE9TVF9QQVRIX0VSUk9SOwo+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgIG52bWVfcmRtYV9jb21wbGV0ZV9ycShycSk7Cj4+PiDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIEJMS19TVFNf T0s7TmVlZCB0byBkbyBjbGVhbi4gc28gY2FuIG5vdCBkaXJlY3RseSByZXR1cm4uCj4gCj4gVGhl IGNvbXBsZXRpb24gcGF0aCBjbGVhbnMgdXAgdGhvdWdoCm9rLCBpIHNlZS4KQnV0IHdlIG5lZWQg dG8gdXNlIHRoZSBuZXcgaGVscGVyIG52bWVfY29tcGxldGVfZmFpbGVkX3JxIHRvIGF2b2lkIGRv dWJsZSByZXF1ZXN0IGNvbXBsZXRpb24uCk9yIHdlIGNhbiBkbyBsaWtlIHRoaXM6CnJlcS0+c3Rh dHVzID0gTlZNRV9TQ19IT1NUX1BBVEhfRVJST1I7CmJsa19tcV9zZXRfcmVxdWVzdF9jb21wbGV0 ZShyZXEpOwpudm1lX3JkbWFfY29tcGxldGVfcnEocnEpOwo+IAo+Pj4KPj4+IMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgIH0KPj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgIGdvdG8gZXJyX3VubWFwOwo+Pj4gwqDCoMKgwqDCoMKgwqDCoCB9Cj4+PiAtLSAKPj4+IC4K Pj4KPj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPj4g TGludXgtbnZtZSBtYWlsaW5nIGxpc3QKPj4gTGludXgtbnZtZUBsaXN0cy5pbmZyYWRlYWQub3Jn Cj4+IGh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbnZt ZQo+IC4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkxp bnV4LW52bWUgbWFpbGluZyBsaXN0CkxpbnV4LW52bWVAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52bWUK