From mboxrd@z Thu Jan 1 00:00:00 1970 From: majianpeng Subject: [PATCH 2/2] raid5: For write performance, remove REQ_SYNC when write was odirect. Date: Mon, 16 Jul 2012 09:31:55 +0800 Message-ID: <201207160931507187344@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Cc: linux-raid , linux-fsdevel To: "Neil Brown" , viro Return-path: Sender: linux-raid-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org SW4gY29tbWl0IGU5Yzc0NjliYjRmNTAyZGFmYzA5MjE2NjIwMWJlYTFhZDVmYzBmYmY6DQpUZWp1 biBIZW8gaW50cm9kdWNlZCAiaW1wbG1lbnQgUkVRX0ZMVVNIL0ZVQSBzdXBwb3J0Ii4NCkJ1dCBm b3IgZGlyZWN0LXdyaXRlLWJsb2NrcywgaXQgbWF5YmUgZm9yIG90aGVyIHB1cnBvc2Ugd2hpY2gg bGlrZSB0aGUNCnJlZ3VsYXIgZmlsZS4NCkFuZCB0aGlzIGZsYWcgd2lsbCBzZXQgU1RSSVBFX1BS RVJFQURfQUNUSVZFIHdoaWNoIGRlY3JlYWVkIHRoZSBjaGFuZ2UNCnRvIGZ1bGwgd3JpdGUuDQoN CkJ1dCB0aGlzIHBhdGNoIHJlbW92ZSBSRVFfU1lOQyBvbmx5IGp1ZGdpbmcgdGhlIFdSSVRFX09E SVJFQ1QsaXQgd2lsbA0KY29udGFpbCByZWd1bGFyIGZpbGUuU28gaXQgbWF5YmUgbm90IGNvcnJl Y3RseS4NCkhvdyBjYW4gZGlmZmVyZW5jZSBvZHJpZWN0X3dyaXRlIGJldHdlZW4gcmVndWxhciBm aWxlIG9yIGJsb2NrIGZpbGU/DQoNClNpZ25lZC1vZmYtYnk6IEppYW5wZW5nIE1hIDxtYWppYW5w ZW5nQGdtYWlsLmNvbT4NCi0tLQ0KIGRyaXZlcnMvbWQvcmFpZDUuYyB8ICAgIDMgKysrDQogMSBm aWxlcyBjaGFuZ2VkLCAzIGluc2VydGlvbnMoKyksIDAgZGVsZXRpb25zKC0pDQoNCmRpZmYgLS1n aXQgYS9kcml2ZXJzL21kL3JhaWQ1LmMgYi9kcml2ZXJzL21kL3JhaWQ1LmMNCmluZGV4IDA0MzQ4 ZDcuLjhkMmQ0ZDEgMTAwNjQ0DQotLS0gYS9kcml2ZXJzL21kL3JhaWQ1LmMNCisrKyBiL2RyaXZl cnMvbWQvcmFpZDUuYw0KQEAgLTQwMTAsNiArNDAxMCw5IEBAIHN0YXRpYyB2b2lkIG1ha2VfcmVx dWVzdChzdHJ1Y3QgbWRkZXYgKm1kZGV2LCBzdHJ1Y3QgYmlvICogYmkpDQogCSAgICAgY2h1bmtf YWxpZ25lZF9yZWFkKG1kZGV2LGJpKSkNCiAJCXJldHVybjsNCiANCisJaWYgKGJpLT5iaV9ydyAm IFdSSVRFX09ESVJFQ1QpDQorCQliaS0+YmlfcncgJj0gflJFUV9TWU5DOw0KKw0KIAlsb2dpY2Fs X3NlY3RvciA9IGJpLT5iaV9zZWN0b3IgJiB+KChzZWN0b3JfdClTVFJJUEVfU0VDVE9SUy0xKTsN CiAJbGFzdF9zZWN0b3IgPSBiaS0+Ymlfc2VjdG9yICsgKGJpLT5iaV9zaXplPj45KTsNCiAJYmkt PmJpX25leHQgPSBOVUxMOw0KLS0gDQoxLjcuNS40DQo=