From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: Re: [PATCH v8 03/10] md: Neither resync nor reshape while the system is frozen Date: Tue, 10 Oct 2017 23:33:06 +0000 Message-ID: <1507678384.2815.80.camel@wdc.com> References: <20171010210346.14574-1-bart.vanassche@wdc.com> <20171010210346.14574-4-bart.vanassche@wdc.com> <20171010223025.tda3lx64rdmugm54@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20171010223025.tda3lx64rdmugm54@kernel.org> Content-Language: en-US Content-ID: <781492102B26794FAA346C34B4DCF367@namprd04.prod.outlook.com> Sender: linux-scsi-owner@vger.kernel.org To: "shli@kernel.org" Cc: "linux-block@vger.kernel.org" , "jthumshirn@suse.de" , "linux-raid@vger.kernel.org" , "hch@lst.de" , "martin.petersen@oracle.com" , "axboe@kernel.dk" , "ming.lei@redhat.com" , "linux-scsi@vger.kernel.org" , "oleksandr@natalenko.name" , "hare@suse.com" List-Id: linux-raid.ids T24gVHVlLCAyMDE3LTEwLTEwIGF0IDE1OjMwIC0wNzAwLCBTaGFvaHVhIExpIHdyb3RlOg0KPiBP biBUdWUsIE9jdCAxMCwgMjAxNyBhdCAwMjowMzozOVBNIC0wNzAwLCBCYXJ0IFZhbiBBc3NjaGUg d3JvdGU6DQo+ID4gU29tZSBwZW9wbGUgdXNlIHRoZSBtZCBkcml2ZXIgb24gbGFwdG9wcyBhbmQg dXNlIHRoZSBzdXNwZW5kIGFuZA0KPiA+IHJlc3VtZSBmdW5jdGlvbmFsaXR5LiBTaW5jZSBpdCBp cyBlc3NlbnRpYWwgdGhhdCBzdWJtaXR0aW5nIG9mDQo+ID4gbmV3IEkvTyByZXF1ZXN0cyBzdG9w cyBiZWZvcmUgYSBoaWJlcm5hdGlvbiBpbWFnZSBpcyBjcmVhdGVkLA0KPiA+IGludGVycnVwdCB0 aGUgbWQgcmVzeW5jIGFuZCByZXNoYXBlIGFjdGlvbnMgaWYgdGhlIHN5c3RlbSBpcw0KPiA+IGJl aW5nIGZyb3plbi4gTm90ZTogdGhlIHJlc3luYyBhbmQgcmVzaGFwZSB3aWxsIHJlc3RhcnQgYWZ0 ZXINCj4gPiB0aGUgc3lzdGVtIGlzIHJlc3VtZWQgYW5kIGEgbWVzc2FnZSBzaW1pbGFyIHRvIHRo ZSBmb2xsb3dpbmcNCj4gPiB3aWxsIGFwcGVhciBpbiB0aGUgc3lzdGVtIGxvZzoNCj4gPiANCj4g PiBtZDogbWQwOiBkYXRhLWNoZWNrIGludGVycnVwdGVkLg0KPiANCj4gV2hlcmUgZG8gd2UgcmVz dGFydCByZXN5bmMgYW5kIHJlc2hhcGU/DQoNCkhlbGxvIFNoYW9odWEsDQoNCk15IHVuZGVyc3Rh bmRpbmcgb2YgdGhlIG1kIGRyaXZlciBpcyBhcyBmb2xsb3dzOg0KLSBCZWZvcmUgYW55IHdyaXRl IG9jY3VycywgbWRfd3JpdGVfc3RhcnQoKSBpcyBjYWxsZWQuIFRoYXQgZnVuY3Rpb24gY2xlYXJz DQogIG1kZGV2LT5zYWZlbW9kZSBhbmQgY2hlY2tzIG1kZGV2LT5pbl9zeW5jLiBJZiB0aGF0IHZh cmlhYmxlIGlzIHNldCwgaXQgaXMNCiAgY2xlYXJlZCBhbmQgbWRfd3JpdGVfc3RhcnQoKSB3YWtl cyB1cCBtZGRldi0+dGhyZWFkIGFuZCB3YWl0cyB1bnRpbCB0aGUNCiAgc3VwZXJibG9jayBoYXMg YmVlbiB3cml0dGVuIHRvIGRpc2suDQotIEFsbCBtZGRldi0+dGhyZWFkIGltcGxlbWVudGF0aW9u cyBjYWxsIG1kX2NoZWNrX3JlY292ZXJ5KCkuIFRoYXQgZnVuY3Rpb24NCiAgdXBkYXRlcyB0aGUg c3VwZXJibG9jayBieSBjYWxsaW5nIG1kX3VwZGF0ZV9zYigpIGlmIG5lZWRlZC4NCiAgbWRfY2hl Y2tfcmVjb3ZlcnkoKSBhbHNvIHN0YXJ0cyBhIHJlc3luYyB0aHJlYWQgaWYgdGhlIGFycmF5IGlz IG5vdCBpbg0KICBzeW5jLiBTZWUgYWxzbyB0aGUgY29tbWVudCBibG9jayBhYm92ZSBtZF9jaGVj a19yZWNvdmVyeSgpLg0KLSBtZF9kb19zeW5jKCkgcGVyZm9ybXMgdGhlIHJlc3luYy4gSWYgaXQg Y29tcGxldGVzIHN1Y2Nlc3NmdWxseSB0aGUNCiAgImluX3N5bmMiIHN0YXRlIGlzIHNldCAoc2V0 X2luX3N5bmMoKSkuIElmIGl0IGlzIGludGVycnVwdGVkIHRoZSAiaW5fc3luYyINCiAgc3RhdGUg aXMgbm90IG1vZGlmaWVkLg0KLSBzdXBlcl85MF9zeW5jKCkgc2V0cyB0aGUgTURfU0JfQ0xFQU4g ZmxhZyBpbiB0aGUgb24tZGlzayBzdXBlcmJsb2NrIGlmIHRoZQ0KICAiaW5fc3luYyIgZmxhZyBp cyBzZXQuDQoNCkluIG90aGVyIHdvcmRzOiBpZiB0aGUgYXJyYXkgaXMgaW4gc3luYyB0aGUgTURf U0JfQ0xFQU4gZmxhZyBpcyBzZXQgaW4gdGhlDQpvbi1kaXNrIHN1cGVyYmxvY2suIElmIGEgcmVz eW5jIGlzIG5lZWRlZCB0aGF0IGZsYWcgaXMgbm90IHNldC4gVGhlDQpNRF9TQl9DTEVBTiBmbGFn IGlzIGNoZWNrZWQgd2hlbiB0aGUgc3VwZXJibG9jayBpcyBsb2FkZWQuIElmIHRoYXQgZmxhZyBp cw0Kbm90IHNldCBhIHJlc3luYyBpcyBzdGFydGVkLg0KDQpCYXJ0Lg0K