From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jianpeng Ma" Subject: [PATCH] md: Add two chances to update sync/recovery checkpoint Date: Sat, 15 Sep 2012 16:59:34 +0800 Message-ID: <201209151659317342260@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Return-path: Sender: linux-raid-owner@vger.kernel.org To: Neil Brown Cc: linux-raid List-Id: linux-raid.ids QWNjb3JkaW5nIGNvbW1pdCA5N2U0ZjQyZDYyYmFkYjBmOWZiYzI3YzAxM2U4OSxpdCBoYXMgMTYg dGltZXMgdG8gdXBkYXRlDQpjaGVja3BvaW50IG9mIHN5bmMvcmVjb3ZlcnkgaW4gZnVuYyBtZF9k b19zeW5jKCkuDQpCZWNhdXNlIHRoZSB0aGUgc2l6ZSBvZiBIREQgYmVjYW1lIGxhcmdlcix0aGUg dGltZSBvZiBzeW5jL3JlY292ZXJ5IG1heQ0KdGFrZW4gbG9uZyB0aW1lcy5TbyB0aGUgMS8xNiBv ZiB0aW1lIG1heWJlIGhhbGYgaG91ciBvciBtb3JlLg0KU28gaXQgc2hvdWxkIGFkZCBjaGFuY2Ug dG8gdXBkYXRlIGNoZWNrcG9pbnQuDQpUaGVyZSBhcmUgcGxhY2VzIHdoaWNoIGNhbiB1cGRhdGUg Y2hlY2twb2ludCBpbiBtZF9kb19zeW5jLg0KMTogSWYgY2FsbCBjb25kX3Jlc2NoZWQgYW5kIHJl YWxseSBzY2hlZA0KMjogSWYgY3Vycl9zcGVlZCBpcyBsYXJnZXIgdGhhbiBtYXhfc3luY19zcGVk ZA0KSWYgYWJvdmUgY29uZGl0aW9ucyBhcmUgb2ssIHdlIGNhbiB0cnkgdG8gdXBkYXRlIGNoZWNr cG9pbnQuDQoNClNpZ25lZC1vZmYtYnk6IEppYW5wZW5nIE1hIDxtYWppYW5wZW5nQGdtYWlsLmNv bT4NCi0tLQ0KIGRyaXZlcnMvbWQvbWQuYyB8ICAgMTYgKysrKysrKysrKysrKysrLQ0KIDEgZmls ZSBjaGFuZ2VkLCAxNSBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0pDQoNCmRpZmYgLS1naXQg YS9kcml2ZXJzL21kL21kLmMgYi9kcml2ZXJzL21kL21kLmMNCmluZGV4IDNmNjIwM2EuLmM3OTkz ZDYgMTAwNjQ0DQotLS0gYS9kcml2ZXJzL21kL21kLmMNCisrKyBiL2RyaXZlcnMvbWQvbWQuYw0K QEAgLTc0OTYsNyArNzQ5NiwxNCBAQCB2b2lkIG1kX2RvX3N5bmMoc3RydWN0IG1kZGV2ICptZGRl dikNCiAJCSAqIGFib3V0IG5vdCBvdmVybG9hZGluZyB0aGUgSU8gc3Vic3lzdGVtLiAodGhpbmdz IGxpa2UgYW4NCiAJCSAqIGUyZnNjayBiZWluZyBkb25lIG9uIHRoZSBSQUlEIGFycmF5IHNob3Vs ZCBleGVjdXRlIGZhc3QpDQogCQkgKi8NCi0JCWNvbmRfcmVzY2hlZCgpOw0KKwkJaWYgKGNvbmRf cmVzY2hlZCgpKQ0KKwkJCWlmICghdGVzdF9iaXQoTURfUkVDT1ZFUllfUkVTSEFQRSwgJm1kZGV2 LT5yZWNvdmVyeSkgJiYNCisJCQkJCW1kZGV2LT5jdXJyX3Jlc3luY19jb21wbGV0ZWQgIT0gaiAm Jg0KKwkJCQkJYXRvbWljX3JlYWQoJm1kZGV2LT5yZWNvdmVyeV9hY3RpdmUpID09IDApIHsNCisJ CQkJbWRkZXYtPmN1cnJfcmVzeW5jX2NvbXBsZXRlZCA9IGo7DQorCQkJCXNldF9iaXQoTURfQ0hB TkdFX0NMRUFOLCAmbWRkZXYtPmZsYWdzKTsNCisJCQkJc3lzZnNfbm90aWZ5KCZtZGRldi0+a29i aiwgTlVMTCwgInN5bmNfY29tcGxldGVkIik7DQorCQkJfQ0KIA0KIAkJY3VycnNwZWVkID0gKCh1 bnNpZ25lZCBsb25nKShpb19zZWN0b3JzLW1kZGV2LT5yZXN5bmNfbWFya19jbnQpKS8yDQogCQkJ LygoamlmZmllcy1tZGRldi0+cmVzeW5jX21hcmspL0haICsxKSArMTsNCkBAIC03NTA1LDYgKzc1 MTIsMTMgQEAgdm9pZCBtZF9kb19zeW5jKHN0cnVjdCBtZGRldiAqbWRkZXYpDQogCQkJaWYgKChj dXJyc3BlZWQgPiBzcGVlZF9tYXgobWRkZXYpKSB8fA0KIAkJCQkJIWlzX21kZGV2X2lkbGUobWRk ZXYsIDApKSB7DQogCQkJCW1zbGVlcCg1MDApOw0KKwkJCQlpZiAoIXRlc3RfYml0KE1EX1JFQ09W RVJZX1JFU0hBUEUsICZtZGRldi0+cmVjb3ZlcnkpICYmDQorCQkJCQltZGRldi0+Y3Vycl9yZXN5 bmNfY29tcGxldGVkICE9IGogJiYNCisJCQkJCWF0b21pY19yZWFkKCZtZGRldi0+cmVjb3Zlcnlf YWN0aXZlKSA9PSAwKSB7DQorCQkJCQltZGRldi0+Y3Vycl9yZXN5bmNfY29tcGxldGVkID0gajsN CisJCQkJCXNldF9iaXQoTURfQ0hBTkdFX0NMRUFOLCAmbWRkZXYtPmZsYWdzKTsNCisJCQkJCXN5 c2ZzX25vdGlmeSgmbWRkZXYtPmtvYmosIE5VTEwsICJzeW5jX2NvbXBsZXRlZCIpOw0KKwkJCQl9 DQogCQkJCWdvdG8gcmVwZWF0Ow0KIAkJCX0NCiAJCX0NCi0tIA0KMS43LjkuNQ0K