From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Obitotskiy, Aleksey" Subject: Re: [PATCH] md: Prevent IO hold during accessing to failed raid5 array Date: Fri, 29 Jul 2016 09:07:43 +0000 Message-ID: <1469783178.2660.21.camel@intel.com> References: <1468589067-1966-1-git-send-email-aleksey.obitotskiy@intel.com> <20160719224603.GB79792@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20160719224603.GB79792@kernel.org> Content-Language: en-US Content-ID: <746348CDEE76BD42BE63130EFED1DE8B@intel.com> Sender: linux-raid-owner@vger.kernel.org To: "shli@kernel.org" Cc: "linux-raid@vger.kernel.org" List-Id: linux-raid.ids SGVsbG8sDQoNCkkgd291bGQgbGlrZSB0byBrbm93IHdoYXQgdGhlIHN0YXR1cyBvZiB0aGlzIHBh dGNoLg0KTWF5YmUgSSBzaG91bGQgcHJvdmlkZSBtb3JlIGluZm8gYWJvdXQ/DQoNClJlZ2FyZHMs DQpBbGVrc2V5DQoNCk9uIFR1ZSwgMjAxNi0wNy0xOSBhdCAxNTo0NiAtMDcwMCwgU2hhb2h1YSBM aSB3cm90ZToNCj4gT24gRnJpLCBKdWwgMTUsIDIwMTYgYXQgMDM6MjQ6MjdQTSArMDIwMCwgQWxl eGV5IE9iaXRvdHNraXkgd3JvdGU6DQo+ID4gDQo+ID4gQWZ0ZXIgYXJyYXkgZW50ZXJzIGluIGZh aWxlZCBzdGF0ZSAoZS5nLiBudW1iZXIgb2YgZmFpbGVkIGRyaXZlcw0KPiA+IGJlY29tZXMgbW9y ZSB0aGVuIGFjY2VwdGVkIGZvciByYWlkNSBsZXZlbCkgaXQgc2V0cyBlcnJvciBmbGFncw0KPiA+ IChvbmUgb2YgdGhpcyBmbGFncyBpcyBNRF9DSEFOR0VfUEVORElORykuIFRoaXMgZmxhZyBwcmV2 ZW50cyB0bw0KPiA+IGZpbmlzaCBhbGwgbmV3IG9yIG5vbi1maW5pc2hlZCBJT3MgdG8gYXJyYXkg YW5kIGhvbGQgdGhlbSBpbg0KPiA+IHBlbmRpbmcgc3RhdGUuIEluIHNvbWUgY2FzZXMgdGhpcyBj YW4gbGVhZHMgdG8gZGVhZGxvY2sgc2l0dWF0aW9uLg0KPiA+IA0KPiA+IEZvciBleGFtcGxlIHVk ZXYgaGFuZGxlIGFycmF5IHN0YXRlIGNoYW5nZXMgKGRyaXZlcyBiZWNvbWVzIGZhdWx0eSkNCj4g PiBhbmQgYmxraWQgc3RhcnRlZCBidXQgdW5hYmxlIHRvIGZpbmlzaCByZWFkcyBkdWUgdG8gSU8g aG9sZC4NCj4gPiBBdCB0aGUgc2FtZSB0aW1lIHdlIHVuYWJsZSB0byBnZXQgZXhjbHVzaXZlIGFj Y2VzcyB0byBhcnJheQ0KPiA+ICh0byBzdG9wIGFycmF5IGluIG91ciBjYXNlKSBiZWNhdXNlIGFu b3RoZXIgZXh0ZXJuYWwgYXBwbGljYXRpb24NCj4gPiBzdGlsbCB1c2UgdGhpcyBhcnJheSAoYmxr aWQgaW4gb3VyIGNhc2UpLg0KPiA+IA0KPiA+IEZpeCBtYWtlcyBwb3NzaWJsZSB0byByZXR1cm4g SU8gd2l0aCBlcnJvcnMgaW1tZWRpYXRlbHkuDQo+ID4gU28gZXh0ZXJuYWwgYXBwbGljYXRpb24g Y2FuIGZpbmlzaCB3b3JraW5nIHdpdGggYXJyYXkgYW5kDQo+ID4gZ2l2ZSBleGNsdXNpdmUgYWNj ZXNzIHRvIG90aGVyIGFwcGxpY2F0aW9ucy4NCj4gPiANCj4gPiBTaWduZWQtb2ZmLWJ5OiBBbGV4 ZXkgT2JpdG90c2tpeSA8YWxla3NleS5vYml0b3Rza2l5QGludGVsLmNvbT4NCj4gPiAtLS0NCj4g PiDCoGRyaXZlcnMvbWQvcmFpZDUuYyB8IDQgKysrLQ0KPiA+IMKgMSBmaWxlIGNoYW5nZWQsIDMg aW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQ0KPiA+IA0KPiA+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL21kL3JhaWQ1LmMgYi9kcml2ZXJzL21kL3JhaWQ1LmMNCj4gPiBpbmRleCA2YzExNDlkLi45 OTQ3MWI2IDEwMDY0NA0KPiA+IC0tLSBhL2RyaXZlcnMvbWQvcmFpZDUuYw0KPiA+ICsrKyBiL2Ry aXZlcnMvbWQvcmFpZDUuYw0KPiA+IEBAIC00NjkyLDcgKzQ2OTIsOSBAQCBmaW5pc2g6DQo+ID4g wqAJfQ0KPiA+IMKgDQo+ID4gwqAJaWYgKCFiaW9fbGlzdF9lbXB0eSgmcy5yZXR1cm5fYmkpKSB7 DQo+ID4gLQkJaWYgKHRlc3RfYml0KE1EX0NIQU5HRV9QRU5ESU5HLCAmY29uZi0+bWRkZXYtDQo+ ID4gPmZsYWdzKSkgew0KPiA+ICsJCWlmICh0ZXN0X2JpdChNRF9DSEFOR0VfUEVORElORywgJmNv bmYtPm1kZGV2LQ0KPiA+ID5mbGFncykgJiYNCj4gPiArCQkJCShzLmZhaWxlZCA8PSBjb25mLT5t YXhfZGVncmFkZWQgfHwNCj4gPiArCQkJCQljb25mLT5tZGRldi0+ZXh0ZXJuYWwgPT0NCj4gPiAw KSkgew0KPiA+IMKgCQkJc3Bpbl9sb2NrX2lycSgmY29uZi0+ZGV2aWNlX2xvY2spOw0KPiA+IMKg CQkJYmlvX2xpc3RfbWVyZ2UoJmNvbmYtPnJldHVybl9iaSwNCj4gPiAmcy5yZXR1cm5fYmkpOw0K PiA+IMKgCQkJc3Bpbl91bmxvY2tfaXJxKCZjb25mLT5kZXZpY2VfbG9jayk7