Re: [PATCH] blk-mq: Make sure that the affected zone is unlocked if a request times out
From: Damien Le Moal <hidden>
Date: 2018-02-28 02:21:49
TWluZywNCg0KT24gMjAxOC8wMi8yNyAxNzozNSwgTWluZyBMZWkgd3JvdGU6DQo+IE9uIFR1ZSwg RmViIDI3LCAyMDE4IGF0IDA0OjI4OjMwUE0gLTA4MDAsIEJhcnQgVmFuIEFzc2NoZSB3cm90ZToN Cj4+IElmIGEgcmVxdWVzdCB0aW1lcyBvdXQgdGhlIC5jb21wbGV0ZWRfcmVxdWVzdCgpIG1ldGhv ZCBpcyBub3QgY2FsbGVkDQo+IA0KPiBJZiBCTEtfRUhfSEFORExFRCBpcyByZXR1cm5lZCBmcm9t IC50aW1lb3V0KCksIF9fYmxrX21xX2NvbXBsZXRlX3JlcXVlc3QoKQ0KPiBzaG91bGQgaGF2ZSBj YWxsZWQgLmNvbXBsZXRlZF9yZXF1ZXN0KCkuIE90aGVyd2lzZSwgc29tZXdoZXJlIG1heSBiZQ0K PiB3cm9uZyBhYm91dCB0aW1lb3V0IGhhbmRsaW5nLiBDb3VsZCB5b3UgaW52ZXN0aWdhdGUgd2h5 IC5jb21wbGV0ZWRfcmVxdWVzdA0KPiBpc24ndCBjYWxsZWQgdW5kZXIgdGhpcyBzaXR1YXRpb24/ DQoNCkFjdHVhbGx5LCB0aGUgY29tbWl0IG1lc3NhZ2UgaXMgYSBsaXR0bGUgbWlzbGVhZGluZy4g VGhlIHByb2JsZW0gaXMgbm90IG9ubHkgZm9yDQp0aW1lb3V0IGJ1dCBhbHNvIGZvciBjb21tYW5k cyBjb21wbGV0aW5nIHdpdGggYSBmYWlsdXJlLiBUaGlzIGlzIHZlcnkgZWFzeSB0bw0KcmVwcm9k dWNlIGJ5IHNpbXBseSBkb2luZyBhbiB1bmFsaWduZWQgd3JpdGUgdG8gYSBzZXF1ZW50aWFsIHpv bmUgb24gYW4gQVRBDQp6b25lZCBibG9jayBkZXZpY2UuIEluIHRoaXMgY2FzZSwgdGhlIHNjaGVk dWxlciAuY29tcGxldGVkX3JlcXVlc3QgbWV0aG9kIGlzIG5vdA0KY2FsbGVkLCB3aGljaCByZXN1 bHQgaW4gdGhlIHRhcmdldCB6b25lIG9mIHRoZSBmYWlsZWQgd3JpdGUgdG8gcmVtYWluIGxvY2tl ZC4NCg0KSGVuY2UgdGhlIGFkZGl0aW9uIG9mIGEgLmZpbmlzaF9yZXF1ZXN0IG1ldGhvZCBpbiBt cS1kZWFkbGluZSBwb2ludGluZyB0byB0aGUNCnNhbWUgZnVuY3Rpb24gYXMgLmNvbXBsZXRlZF9y ZXF1ZXN0IHRvIGVuc3VyZSB0aGF0IHRoZSBjb21tYW5kIHRhcmdldCB6b25lIGlzDQp1bmxvY2tl ZC4gVG8gZW5zdXJlIHRoYXQgdGhlIC5maW5pc2hfcmVxdWVzdCBtZXRob2QgaXMgY2FsbGVkLCB0 aGUgUlFGX0VMVlBSSVYNCmZsYWcgaXMgc2V0IHdoZW4gdGhlIHJlcXVlc3QgaXMgZGlzcGF0Y2hl ZCBhZnRlciB0aGUgdGFyZ2V0IHpvbmUgd2FzIGxvY2tlZC4NCg0KPj4gYW5kIHRoZSAuZmluaXNo X3JlcXVlc3QoKSBtZXRob2QgaXMgb25seSBjYWxsZWQgaWYgUlFGX0VMVlBSSVYgaGFzDQo+IA0K PiAuZmluaXNoX3JlcXVlc3QoKSBpcyBjb3VudGVyLXBhaXIgb2YgLnByZXBhcmVfcmVxdWVzdCgp LCBhbmQgYm90aA0KPiBhcmVuJ3QgaW1wbGVtZW50ZWQgYnkgbXEtZGVhZGxpbmUsIHNvIFJRRl9F TFZQUklWIG5lZWRuJ3QgdG8gYmUgc2V0LA0KPiBhbmQgdGhlIGN1cnJlbnQgcnVsZSBpcyB0aGF0 IHRoaXMgZmxhZyBpcyBtYW5hZ2VkIGJ5IGJsb2NrIGNvcmUuDQoNCkluZGVlZC4gU28gZG8geW91 IHRoaW5rIGl0IHdvdWxkIGJlIGJldHRlciB0byByYXRoZXIgZm9yY2UgYSBjYWxsIHRvDQouY29t cGxldGVkX3JlcXVlc3QgZm9yIGZhaWxlZCBjb21tYW5kIGluIEFUQSBjYXNlID8gQ3VycmVudGx5 LCBpdCBpcyBub3QgY2FsbGVkDQphZnRlciBhbGwgcmV0cmllcyBmb3IgdGhlIGNvbW1hbmQgZmFp bGVkLg0KDQo+IA0KPj4gYmVlbiBzZXQuIEhlbmNlIHRoaXMgcGF0Y2ggdGhhdCBzZXRzIFJRRl9F TFZQUklWIGFuZCB0aGF0IGFkZHMgYQ0KPj4gLmZpbmlzaF9yZXF1ZXN0KCkgbWV0aG9kLiBXaXRo b3V0IHRoaXMgcGF0Y2gsIGlmIGEgcmVxdWVzdCB0aW1lcyBvdXQNCj4+IHRoZSB6b25lIHRoYXQg cmVxdWVzdCBhcHBsaWVzIHRvIHJlbWFpbnMgbG9ja2VkIGZvcmV2ZXIgYW5kIG5vIGZ1cnRoZXIN Cj4+IHdyaXRlcyBhcmUgYWNjZXB0ZWQgZm9yIHRoYXQgem9uZS4NCj4+DQo+PiBGaXhlczogNTcw MGY2OTE3OGU5ICgibXEtZGVhZGxpbmU6IEludHJvZHVjZSB6b25lIGxvY2tpbmcgc3VwcG9ydCIp DQo+PiBTaWduZWQtb2ZmLWJ5OiBEYW1pZW4gTGUgTW9hbCA8ZGFtaWVuLmxlbW9hbEB3ZGMuY29t Pg0KPj4gU2lnbmVkLW9mZi1ieTogQmFydCBWYW4gQXNzY2hlIDxiYXJ0LnZhbmFzc2NoZUB3ZGMu Y29tPg0KPj4gQ2M6IEhhbm5lcyBSZWluZWNrZSA8aGFyZUBzdXNlLmNvbT4NCj4+IENjOiBNaW5n IExlaSA8bWluZy5sZWlAcmVkaGF0LmNvbT4NCj4+IC0tLQ0KPj4gIGJsb2NrL21xLWRlYWRsaW5l LmMgfCA4ICsrKysrKy0tDQo+PiAgMSBmaWxlIGNoYW5nZWQsIDYgaW5zZXJ0aW9ucygrKSwgMiBk ZWxldGlvbnMoLSkNCj4+DQo+PiBkaWZmIC0tZ2l0IGEvYmxvY2svbXEtZGVhZGxpbmUuYyBiL2Js b2NrL21xLWRlYWRsaW5lLmMNCj4+IGluZGV4IGM1NmYyMTFjODQ0MC4uNTVkNWI3YTAyZDYyIDEw MDY0NA0KPj4gLS0tIGEvYmxvY2svbXEtZGVhZGxpbmUuYw0KPj4gKysrIGIvYmxvY2svbXEtZGVh ZGxpbmUuYw0KPj4gQEAgLTM2Nyw3ICszNjcsOCBAQCBzdGF0aWMgc3RydWN0IHJlcXVlc3QgKl9f ZGRfZGlzcGF0Y2hfcmVxdWVzdChzdHJ1Y3QgZGVhZGxpbmVfZGF0YSAqZGQpDQo+PiAgCSAqIElm IHRoZSByZXF1ZXN0IG5lZWRzIGl0cyB0YXJnZXQgem9uZSBsb2NrZWQsIGRvIGl0Lg0KPj4gIAkg Ki8NCj4+ICAJYmxrX3JlcV96b25lX3dyaXRlX2xvY2socnEpOw0KPj4gLQlycS0+cnFfZmxhZ3Mg fD0gUlFGX1NUQVJURUQ7DQo+PiArCS8qIFNldCBSUUZfRUxWUFJJViB0byBlbnN1cmUgdGhhdCAu ZmluaXNoX3JlcXVlc3QoKSBnZXRzIGNhbGxlZCAqLw0KPj4gKwlycS0+cnFfZmxhZ3MgfD0gUlFG X1NUQVJURUQgfCBSUUZfRUxWUFJJVjsNCj4+ICAJcmV0dXJuIHJxOw0KPj4gIH0NCj4+ICANCj4+ IEBAIC01MzksNyArNTQwLDkgQEAgc3RhdGljIHZvaWQgZGRfaW5zZXJ0X3JlcXVlc3RzKHN0cnVj dCBibGtfbXFfaHdfY3R4ICpoY3R4LA0KPj4gICAqIEZvciB6b25lZCBibG9jayBkZXZpY2VzLCB3 cml0ZSB1bmxvY2sgdGhlIHRhcmdldCB6b25lIG9mDQo+PiAgICogY29tcGxldGVkIHdyaXRlIHJl cXVlc3RzLiBEbyB0aGlzIHdoaWxlIGhvbGRpbmcgdGhlIHpvbmUgbG9jaw0KPj4gICAqIHNwaW5s b2NrIHNvIHRoYXQgdGhlIHpvbmUgaXMgbmV2ZXIgdW5sb2NrZWQgd2hpbGUgZGVhZGxpbmVfZmlm b19yZXF1ZXN0KCkNCj4+IC0gKiB3aGlsZSBkZWFkbGluZV9uZXh0X3JlcXVlc3QoKSBhcmUgZXhl Y3V0aW5nLg0KPj4gKyAqIHdoaWxlIGRlYWRsaW5lX25leHRfcmVxdWVzdCgpIGFyZSBleGVjdXRp bmcuIFRoaXMgZnVuY3Rpb24gaXMgY2FsbGVkIHR3aWNlDQo+PiArICogZm9yIHJlcXVlc3RzIHRo YXQgY29tcGxldGUgaW4gYSBub3JtYWwgd2F5IGFuZCBvbmNlIGZvciByZXF1ZXN0cyB0aGF0IHRp bWUNCj4+ICsgKiBvdXQuDQo+PiAgICovDQo+PiAgc3RhdGljIHZvaWQgZGRfY29tcGxldGVkX3Jl cXVlc3Qoc3RydWN0IHJlcXVlc3QgKnJxKQ0KPj4gIHsNCj4+IEBAIC03NTcsNiArNzYwLDcgQEAg c3RhdGljIHN0cnVjdCBlbGV2YXRvcl90eXBlIG1xX2RlYWRsaW5lID0gew0KPj4gIAkJLmluc2Vy dF9yZXF1ZXN0cwk9IGRkX2luc2VydF9yZXF1ZXN0cywNCj4+ICAJCS5kaXNwYXRjaF9yZXF1ZXN0 CT0gZGRfZGlzcGF0Y2hfcmVxdWVzdCwNCj4+ICAJCS5jb21wbGV0ZWRfcmVxdWVzdAk9IGRkX2Nv bXBsZXRlZF9yZXF1ZXN0LA0KPj4gKwkJLmZpbmlzaF9yZXF1ZXN0CQk9IGRkX2NvbXBsZXRlZF9y ZXF1ZXN0LA0KPj4gIAkJLm5leHRfcmVxdWVzdAkJPSBlbHZfcmJfbGF0dGVyX3JlcXVlc3QsDQo+ PiAgCQkuZm9ybWVyX3JlcXVlc3QJCT0gZWx2X3JiX2Zvcm1lcl9yZXF1ZXN0LA0KPj4gIAkJLmJp b19tZXJnZQkJPSBkZF9iaW9fbWVyZ2UsDQo+PiAtLSANCj4+IDIuMTYuMg0KPj4NCj4gDQoNCg0K LS0gDQpEYW1pZW4gTGUgTW9hbA0KV2VzdGVybiBEaWdpdGFsIFJlc2VhcmNo