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([2601:647:4802:9070:3d48:4849:d506:e578]) by smtp.gmail.com with ESMTPSA id l11sm9461111wrt.23.2021.01.28.19.37.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Jan 2021 19:37:37 -0800 (PST) Subject: Re: [PATCH v4 4/5] nvme-rdma: avoid IO error for nvme native multipath To: Chao Leng , linux-nvme@lists.infradead.org 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: Sagi Grimberg Message-ID: Date: Thu, 28 Jan 2021 19:37:33 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210128_223739_253452_9633261A X-CRM114-Status: GOOD ( 14.40 ) 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 Cj4+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9udm1lL2hvc3QvcmRtYS5jIGIvZHJpdmVycy9udm1l L2hvc3QvcmRtYS5jCj4+PiBpbmRleCBiN2NlNGYyMjFkOTkuLjY2YjY5NzQ2MWJkOSAxMDA2NDQK Pj4+IC0tLSBhL2RyaXZlcnMvbnZtZS9ob3N0L3JkbWEuYwo+Pj4gKysrIGIvZHJpdmVycy9udm1l L2hvc3QvcmRtYS5jCj4+PiBAQCAtMjA4NCw4ICsyMDg0LDEzIEBAIHN0YXRpYyBibGtfc3RhdHVz X3QgbnZtZV9yZG1hX3F1ZXVlX3JxKHN0cnVjdCAKPj4+IGJsa19tcV9od19jdHggKmhjdHgsCj4+ Pgo+Pj4gwqDCoMKgwqDCoMKgwqDCoCBlcnIgPSBudm1lX3JkbWFfcG9zdF9zZW5kKHF1ZXVlLCBz cWUsIHJlcS0+c2dlLCByZXEtPm51bV9zZ2UsCj4+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgcmVxLT5tciA/ICZyZXEtPnJlZ193ci53ciA6IE5VTEwp Owo+Pj4gLcKgwqDCoMKgwqDCoCBpZiAodW5saWtlbHkoZXJyKSkKPj4+ICvCoMKgwqDCoMKgwqAg aWYgKHVubGlrZWx5KGVycikpIHsKPj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIGlm IChlcnIgPT0gLUVJTykgewo+Pj4gK8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgIG52bWVfY29tcGxldGVfZmFpbGVkX3JxKHJxLCAKPj4+IE5WTUVfU0NfSE9TVF9Q QVRIX0VSUk9SKTsKPj4KPj4gSSB3YXMgdGhpbmtpbmcgYWJvdXQ6Cj4+IC0tIAo+PiDCoMKgwqDC oMKgwqDCoMKgIGVyciA9IG52bWVfcmRtYV9wb3N0X3NlbmQocXVldWUsIHNxZSwgcmVxLT5zZ2Us IHJlcS0+bnVtX3NnZSwKPj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgIHJlcS0+bXIgPyAmcmVxLT5yZWdfd3Iud3IgOiBOVUxMKTsKPj4gwqDCoMKgwqDC oMKgwqDCoCBpZiAodW5saWtlbHkoZXJyKSkgewo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoCBpZiAoZXJyID09IC1FSU8pIHsKPj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgIC8qCj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgICogRmFpbCB0aGUgcmV1cWVzdCBzbyB1cHBlciBsYXllciBj YW4gCj4+IGZhaWxvdmVyIEkvTwo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoCAqIGlmIGFub3RoZXIgcGF0aCBpcyBhdmFpbGFibGUKPj4gwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgKi8KPj4gwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHJlcS0+c3RhdHVzID0g TlZNRV9TQ19IT1NUX1BBVEhfRVJST1I7Cj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoCBudm1lX3JkbWFfY29tcGxldGVfcnEocnEpOwo+PiDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIEJMS19TVFNf T0s7TmVlZCB0byBkbyBjbGVhbi4gc28gY2FuIAo+PiBub3QgZGlyZWN0bHkgcmV0dXJuLgoKVGhl IGNvbXBsZXRpb24gcGF0aCBjbGVhbnMgdXAgdGhvdWdoCgo+Pgo+PiDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoCB9Cj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIGdv dG8gZXJyX3VubWFwOwo+PiDCoMKgwqDCoMKgwqDCoMKgIH0KPj4gLS0gCj4+IC4KPiAKPiBfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IExpbnV4LW52bWUg bWFpbGluZyBsaXN0Cj4gTGludXgtbnZtZUBsaXN0cy5pbmZyYWRlYWQub3JnCj4gaHR0cDovL2xp c3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1udm1lCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1udm1lIG1haWxpbmcg bGlzdApMaW51eC1udm1lQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVh ZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1udm1lCg==