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Thu, 13 Feb 2025 22:04:28 +0800 From: lizetao To: Caleb Sander Mateos CC: "io-uring@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Jens Axboe , Pavel Begunkov Subject: RE: [PATCH] io_uring: use lockless_cq flag in io_req_complete_post() Thread-Topic: [PATCH] io_uring: use lockless_cq flag in io_req_complete_post() Thread-Index: AQHbfOhWd2OE9cuOPEKuwkCotYxPjrNFRZPg Date: Thu, 13 Feb 2025 14:04:28 +0000 Message-ID: References: <20250212005119.3433005-1-csander@purestorage.com> In-Reply-To: <20250212005119.3433005-1-csander@purestorage.com> 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 SGksDQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogQ2FsZWIgU2FuZGVy IE1hdGVvcyA8Y3NhbmRlckBwdXJlc3RvcmFnZS5jb20+DQo+IFNlbnQ6IFdlZG5lc2RheSwgRmVi cnVhcnkgMTIsIDIwMjUgODo1MSBBTQ0KPiBUbzogSmVucyBBeGJvZSA8YXhib2VAa2VybmVsLmRr PjsgUGF2ZWwgQmVndW5rb3YgPGFzbWwuc2lsZW5jZUBnbWFpbC5jb20+DQo+IENjOiBDYWxlYiBT YW5kZXIgTWF0ZW9zIDxjc2FuZGVyQHB1cmVzdG9yYWdlLmNvbT47IGlvLQ0KPiB1cmluZ0B2Z2Vy Lmtlcm5lbC5vcmc7IGxpbnV4LWtlcm5lbEB2Z2VyLmtlcm5lbC5vcmcNCj4gU3ViamVjdDogW1BB VENIXSBpb191cmluZzogdXNlIGxvY2tsZXNzX2NxIGZsYWcgaW4gaW9fcmVxX2NvbXBsZXRlX3Bv c3QoKQ0KPiANCj4gaW9fdXJpbmdfY3JlYXRlKCkgY29tcHV0ZXMgY3R4LT5sb2NrbGVzc19jcSBh czoNCj4gY3R4LT50YXNrX2NvbXBsZXRlIHx8IChjdHgtPmZsYWdzICYgSU9SSU5HX1NFVFVQX0lP UE9MTCkNCj4gDQo+IFNvIHVzZSBpdCB0byBzaW1wbGlmeSB0aGF0IGV4cHJlc3Npb24gaW4gaW9f cmVxX2NvbXBsZXRlX3Bvc3QoKS4NCj4gDQo+IFNpZ25lZC1vZmYtYnk6IENhbGViIFNhbmRlciBN YXRlb3MgPGNzYW5kZXJAcHVyZXN0b3JhZ2UuY29tPg0KPiAtLS0NCj4gIGlvX3VyaW5nL2lvX3Vy aW5nLmMgfCAyICstDQo+ICAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRp b24oLSkNCj4gDQo+IGRpZmYgLS1naXQgYS9pb191cmluZy9pb191cmluZy5jIGIvaW9fdXJpbmcv aW9fdXJpbmcuYyBpbmRleA0KPiBlYzk4YTBlYzZmMzQuLjBiZDk0NTk5ZGY4MSAxMDA2NDQNCj4g LS0tIGEvaW9fdXJpbmcvaW9fdXJpbmcuYw0KPiArKysgYi9pb191cmluZy9pb191cmluZy5jDQo+ IEBAIC04OTcsMTEgKzg5NywxMSBAQCBzdGF0aWMgdm9pZCBpb19yZXFfY29tcGxldGVfcG9zdChz dHJ1Y3QgaW9fa2lvY2INCj4gKnJlcSwgdW5zaWduZWQgaXNzdWVfZmxhZ3MpDQo+IA0KPiAgCS8q DQo+ICAJICogSGFuZGxlIHNwZWNpYWwgQ1Egc3luYyBjYXNlcyB2aWEgdGFza193b3JrLiBERUZF Ul9UQVNLUlVODQo+IHJlcXVpcmVzDQo+ICAJICogdGhlIHN1Ym1pdHRlciB0YXNrIGNvbnRleHQs IElPUE9MTCBwcm90ZWN0cyB3aXRoIHVyaW5nX2xvY2suDQo+ICAJICovDQo+IC0JaWYgKGN0eC0+ dGFza19jb21wbGV0ZSB8fCAoY3R4LT5mbGFncyAmIElPUklOR19TRVRVUF9JT1BPTEwpKSB7DQo+ ICsJaWYgKGN0eC0+bG9ja2xlc3NfY3EpIHsNCg0KV2hlbiB0aGUgY29tcGxldGlvbl9sb2NrIGlz IG5vdCBoZWxkLCB0aGUgcmVxIGNvbXBsZXRpb24gZXZlbnQgbmVlZHMgdG8gYmUgaGFuZGxlZCB0 aHJvdWdoDQp0aGUgdGFza193b3JrIG1lY2hhbmlzbSwgc28gdGhpcyBtb2RpZmljYXRpb24gbWFr ZXMgc2Vuc2UgdG8gbWUuDQoNCj4gIAkJcmVxLT5pb190YXNrX3dvcmsuZnVuYyA9IGlvX3JlcV90 YXNrX2NvbXBsZXRlOw0KPiAgCQlpb19yZXFfdGFza193b3JrX2FkZChyZXEpOw0KPiAgCQlyZXR1 cm47DQo+ICAJfQ0KPiANCj4gLS0NCj4gMi40NS4yDQo+IA0KDQpSZXZpZXdlZC1ieTogTGkgWmV0 YW8gPGxpemV0YW8xQGh1YXdlaS5jb20+DQoNCi0tLQ0KTGkgWmV0YW8NCg==