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([2601:647:4802:9070:1be2:3dfb:f0b7:cc27]) by smtp.gmail.com with ESMTPSA id c4sm1961741pjq.7.2020.10.02.09.03.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Oct 2020 09:03:27 -0700 (PDT) Subject: Re: [PATCH 10/20] nvme: freeze the queue over ->lba_shift updates From: Sagi Grimberg To: Christoph Hellwig References: <20200928123502.435373-1-hch@lst.de> <20200928123502.435373-11-hch@lst.de> <39b98188-2803-2f49-e225-8d3fbe3bfb1f@grimberg.me> <20200929183214.GD12948@lst.de> Message-ID: <73932a4a-8618-5058-3d1d-434cf934aa18@grimberg.me> Date: Fri, 2 Oct 2020 09:03:26 -0700 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-20201002_120332_456233_56E2E595 X-CRM114-Status: GOOD ( 14.33 ) 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: Keith Busch , Jens Axboe , Damien Le Moal , linux-nvme@lists.infradead.org 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+Pj4gRW5zdXJlIHRoYXQgdGhlcmUgY2FuJ3QgYmUgYW55IEkvTyBpbiBmbGlnaHQgd2VudCB3 ZSBjaGFuZ2UgdGhlIGRpc2sKPj4+PiBnZW9tZXRyeSBpbiBudm1lX3VwZGF0ZV9uc19pbmZvLCBt b3N0IG5vdGFibGUgdGhlIExCQSBzaXplIGJ5IGxpZnRpbmcKPj4+PiB0aGUgcXVldWUgZnJlZSBm cm9tIG52bWVfdXBkYXRlX2Rpc2tfaW5mbyBpbnRvIHRoZSBjYWxsZXIKPj4+Cj4+PiBUaGUgcXVl dWUgaXMgZnJvemVuIG9uIHRoZSBxdWV1ZSBsb2dpY2FsIGJsb2NrIHNpemUsIHdoeSBzaG91bGQK Pj4+IHdlIGNhcmUgYWJvdXQgSS9PIHdoaWxlIG5zLT5sYmFfc2hpZnQ/Cj4+Cj4+IEJlY2F1c2Ug d2UgdXNlIGl0IGZvciBhbGwga2luZHMgb2YgY2FsY3VsYXRpb25zIGluIHRoZSBJL08gcGF0aC7C oCBCeQo+PiBtb3ZpbmcgYWxsIGFzc2lnbm1lbnRzIGludG8gdGhlIGZyb3plbiBxdWV1ZSBjcml0 aWNhbCBzZWN0aW9ucyB3ZQo+PiBhdm9pZCBhbGwgcG9zc2libHkgaW5jb25zaXN0ZW5jaWVzLgo+ IAo+IEknZCB0aGluayB0aGF0IGl0IHdvdWxkIGJlIGJldHRlciB0byBuZXZlciB1c2UgbnMtPmxi YV9zaGlmdCBidXQgcmF0aGVyCj4gdGhlIHJlcXVlc3QgcXVldWUgYmxvY2sgc2l6ZSBhbmQga2Vl cCB0aGUgcXVldWUgZnJlZXplIHNwYW4gb25seQo+IHRoYXQgbXV0YXRpb24uCgo/CgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1udm1lIG1haWxp bmcgbGlzdApMaW51eC1udm1lQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJh ZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1udm1lCg==