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Fri, 14 Feb 2025 11:39:22 +0800 From: lizetao To: Keith Busch CC: Keith Busch , "io-uring@vger.kernel.org" , "axboe@kernel.dk" Subject: RE: [PATCHv2 0/6] ublk zero-copy support Thread-Topic: [PATCHv2 0/6] ublk zero-copy support Thread-Index: AQHbfB/vq06q5HS6S0+pcuuiJTiiHrNFWNrg//+LSYCAATaMUA== Date: Fri, 14 Feb 2025 03:39:22 +0000 Message-ID: <3a6ca1b138984c6bb8809237c30f98dd@huawei.com> References: <20250211005646.222452-1-kbusch@meta.com> <83fd69a8aa77450093acb1ada05c188f@huawei.com> In-Reply-To: Accept-Language: en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 SGksDQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogS2VpdGggQnVzY2gg PGtidXNjaEBrZXJuZWwub3JnPg0KPiBTZW50OiBGcmlkYXksIEZlYnJ1YXJ5IDE0LCAyMDI1IDEy OjA3IEFNDQo+IFRvOiBsaXpldGFvIDxsaXpldGFvMUBodWF3ZWkuY29tPg0KPiBDYzogS2VpdGgg QnVzY2ggPGtidXNjaEBtZXRhLmNvbT47IGlvLXVyaW5nQHZnZXIua2VybmVsLm9yZzsNCj4gYXhi b2VAa2VybmVsLmRrDQo+IFN1YmplY3Q6IFJlOiBbUEFUQ0h2MiAwLzZdIHVibGsgemVyby1jb3B5 IHN1cHBvcnQNCj4gDQo+IE9uIFRodSwgRmViIDEzLCAyMDI1IGF0IDAzOjEyOjQzUE0gKzAwMDAs IGxpemV0YW8gd3JvdGU6DQo+ID4gSSB0ZXN0ZWQgdGhpcyBwYXRjaCBzZXQuIFdoZW4gSSB1c2Ug bnVsbCBhcyB0aGUgZGV2aWNlLCB0aGUgdGVzdCByZXN1bHRzIGFyZSBsaWtlDQo+IHlvdXIgdjEu DQo+ID4gV2hlbiB0aGUgYnMgaXMgNGssIHRoZXJlIGlzIGEgc2xpZ2h0IGltcHJvdmVtZW50OyB3 aGVuIHRoZSBicyBpcyA2NGssIHRoZXJlIGlzDQo+IGEgc2lnbmlmaWNhbnQgaW1wcm92ZW1lbnQu DQo+ID4gSG93ZXZlciwgd2hlbiBJIHVzZWQgbG9vcCBhcyB0aGUgZGV2aWNlLCBJIGZvdW5kIHRo YXQgdGhlcmUgd2FzIG5vDQo+IGltcHJvdmVtZW50LCB3aGV0aGVyIHVzaW5nIDRrIG9yIDY0ay4g QXMgZm9sbG93Og0KPiA+DQo+ID4gICB1YmxrIGFkZCAtdCBsb29wIC1mIC4vdWJsay1sb29wLmlt Zw0KPiA+ICAgdWJsayBhZGQgLXQgbG9vcCAtZiAuL3VibGstbG9vcC16ZXJvY29weS5pbWcNCj4g Pg0KPiA+ICAgZmlvIC1maWxlbmFtZT0vZGV2L3VibGtiMCAtZGlyZWN0PTEgLXJ3PXJlYWQgLWlv ZGVwdGg9MSAtaW9lbmdpbmU9aW9fdXJpbmcNCj4gLWJzPTEyOGsgLXNpemU9NUcNCj4gPiAgICAg cmVhZDogSU9QUz0yMDE1LCBCVz0xMjZNaUIvcyAoMTMyTUIvcykoMTI2ME1pQi8xMDAwNW1zZWMp DQo+ID4NCj4gPiAgIGZpbyAtZmlsZW5hbWU9L2Rldi91YmxrYjEgLWRpcmVjdD0xIC1ydz1yZWFk IC1pb2RlcHRoPTEgLWlvZW5naW5lPWlvX3VyaW5nDQo+IC1icz0xMjhrIC1zaXplPTVHDQo+ID4g ICAgIHJlYWQ6IElPUFM9MTk5OCwgQlc9MTI1TWlCL3MgKDEzMU1CL3MpKDEyNTBNaUIvMTAwMDVt c2VjKQ0KPiA+DQo+ID4NCj4gPiBTbywgdGhpcyBwYXRjaCBzZXQgaXMgb3B0aW1pemVkIGZvciBu dWxsIHR5cGUgZGV2aWNlcz8gT3IgaWYgSSd2ZSBtaXNzZWQgYW55IGtleQ0KPiBpbmZvcm1hdGlv biwgcGxlYXNlIGxldCBtZSBrbm93Lg0KPiANCj4gV2hhdCBkbyB5b3UgZ2V0IGlmIGlmIHlvdSBy dW4geW91ciBmaW8gam9iIGRpcmVjdGx5IG9uIHlvdXIgdWJsay1sb29wLmltZyBmaWxlPw0KDQpJ IHRlc3QgaXQgZGlyZWN0bHkgb24gdWJsay1sb29wLmltZywgYW5kIHRoZSByZXN1bHQgaXMgYXMg Zm9sbG93Og0KICANCiAgZmlvIC1maWxlbmFtZT0uL3VibGstbG9vcC5pbWcgLWRpcmVjdD0xIC1y dz1yZWFkIC1pb2RlcHRoPTEgLWlvZW5naW5lPWlvX3VyaW5nIC1icz0xMjhrIC1zaXplPTVHDQog IHJlYWQ6IElPUFM9MTAwNSwgQlc9MTI2TWlCL3MgKDEzMk1CL3MpKDEyNThNaUIvMTAwMDltc2Vj KQ0KDQpGcm9tIHRoZSB0ZXN0IHJlc3VsdHMsIHRoaXMgc2VlbXMgdG8gYmUgbGltaXRlZCBieSB0 aGUgcGVyZm9ybWFuY2UgbGltaXRhdGlvbnMgb2YgdGhlIGZpbGUgc3lzdGVtDQp3aGVyZSAuL3Vi bGstbG9vcC5pbWcgaXMgbG9jYXRlZC4NCg0KPiBUaHJvdWdocHV0IHNob3VsZCBpbXByb3ZlIHVu dGlsIHlvdSd2ZSBzYXR1cmF0ZWQgdGhlIGJhY2tlbmQgZGV2aWNlLg0KPiBPbmNlIHlvdSBoaXQg dGhhdCBwb2ludCwgdGhlIHByaW1hcnkgYmVuZWZpdCBvZiB6ZXJvLWNvcHkgY29tZSBmcm9tIGRl Y3JlYXNlZA0KPiBtZW1vcnkgYW5kIENQVSB1dGlsaXphdGlvbnMuDQoNCi0tLQ0KTGkgWmV0YW8N Cg==