Re: [PATCH v2] blk-mq: Fix race between resetting the timer and completion handling
From: Bart Van Assche <hidden>
Date: 2018-02-21 22:55:25
T24gV2VkLCAyMDE4LTAyLTIxIGF0IDExOjIxIC0wODAwLCB0akBrZXJuZWwub3JnIHdyb3RlOg0K PiBIZWxsbywgQmFydC4NCj4gDQo+IE9uIFdlZCwgRmViIDIxLCAyMDE4IGF0IDA2OjUzOjA1UE0g KzAwMDAsIEJhcnQgVmFuIEFzc2NoZSB3cm90ZToNCj4gPiBPbiBTdW4sIDIwMTgtMDItMTggYXQg MDU6MTEgLTA4MDAsIHRqQGtlcm5lbC5vcmcgd3JvdGU6DQo+ID4gPiBPbiBXZWQsIEZlYiAxNCwg MjAxOCBhdCAwNDo1ODo1NlBNICswMDAwLCBCYXJ0IFZhbiBBc3NjaGUgd3JvdGU6DQo+ID4gPiA+ IFdpdGggdGhpcyBwYXRjaCBhcHBsaWVkIHRoZSB0ZXN0cyBJIHJhbiBzbyBmYXIgcGFzcy4NCj4g PiA+IA0KPiA+ID4gQWgsIGdyZWF0IHRvIGhlYXIuICBUaGFua3MgYSBsb3QgZm9yIHRlc3Rpbmcu ICBDYW4geW91IHBsZWFzZSB2ZXJpZnkNCj4gPiA+IHRoZSBmb2xsb3dpbmc/ICBJdCdzIHRoZSBz YW1lIGFwcHJvYWNoIGJ1dCB3aXRoIFJDVSBzeW5jIGJhdGNoaW5nLg0KPiA+IA0KPiA+IEhlbGxv IFRlanVuLA0KPiA+IA0KPiA+IEFmdGVyIGhhdmluZyBtZXJnZWQga2VybmVsIHY0LjE2LXJjMiBp bnRvIG15IGtlcm5lbCB0cmVlIGFuZCBhZnRlciBoYXZpbmcNCj4gPiBhcHBsaWVkIHBhdGNoICJB dm9pZCB0aGF0IEFUQSBlcnJvciBoYW5kbGluZyBoYW5ncyINCj4gPiAoaHR0cHM6Ly93d3cubWFp bC1hcmNoaXZlLmNvbS9saW51eC1zY3NpQHZnZXIua2VybmVsLm9yZy9tc2c3MTE0NS5odG1sKSBJ DQo+ID4gaGF2ZSBub3QgYmVlbiBhYmxlIHRvIHJlcHJvZHVjZSB0aGUgcmVwb3J0ZWQgY3Jhc2gg LSBuZWl0aGVyIHdpdGggdGhlIHBhdGNoDQo+ID4gYXBwbGllZCB0aGF0IHdhcyBwb3N0ZWQgb24g RmVicnVhcnkgMTN0aCBub3Igd2l0aG91dCB0aGF0IHBhdGNoLiBUaGlzIG1ha2VzDQo+ID4gbWUg d29uZGVyIHdoZXRoZXIgd2Ugc2hvdWxkIGRyb3AgdGhlIGRpc2N1c3NlZCBwYXRjaGVzIHVubGVz cyBzb21lb25lIGNvbWVzDQo+ID4gdXAgd2l0aCBhIHJlcHJvZHVjaWJsZSB0ZXN0IGNhc2U/DQo+ IA0KPiBJdCBpcyBhbiBhY3R1YWwgYnVnIGluIHRoYXQgd2UgYWN0dWFsbHkgY2FuIG92ZXJyaWRl IHRoZSB0aW1lciBzZXR0aW5nDQo+IG9mIHRoZSBuZXh0IHJlcXVlc3QgaW5zdGFuY2UuICBHaXZl biB0aGF0IHRoZSByYWNlIHdpbmRvdyBpc24ndCB0aGF0DQo+IGxhcmdlLCBpdCBtYWtlcyBzZW5z ZSB0aGF0IHRoZSByZXByb2R1Y2liaWxpdHkgaXMgYWZmZWN0ZWQgYnkNCj4gYnV0dGVyZmxpZXMu ICBJIHRoaW5rIGl0IG1ha2VzIHNlbnNlIHRvIGZpeCB0aGUgYnVnLiAgQW55IGNoYW5jZSB5b3UN Cj4gY2FuIHRlc3QgdGhlIG5ldyBwYXRjaCBvbiB0b3Agb2YgdGhlIHJlcHJvZHVjaWJsZSBzZXR1 cD8NCg0KSGVsbG8gVGVqdW4sDQoNClNpbmNlIEkgaGFkIG5vdCBzYXZlZCBhbnkgb2YgdGhlIHRy ZWVzIHRoYXQgSSBoYWQgdXNlZCBkdXJpbmcgbXkgdGVzdHMgSSBwaWNrZWQNCnNldmVyYWwgdHJl ZXMgZnJvbSB0aGUgImdpdCByZWZsb2ciIG91dHB1dCBhbmQgdHJpZWQgdG8gcmVwcm9kdWNlIHRo ZSBjcmFzaCB0aGF0DQpJIGhhZCByZXBvcnRlZCB3aXRoIHRoZXNlIHRyZWVzLiBVbmZvcnR1bmF0 ZWx5IHNvIGZhciB3aXRob3V0IHN1Y2Nlc3MuDQoNCkJhcnQuDQoNCg0K