From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jianpeng Ma" Subject: Re: [patch 2/2 v3]raid5: create multiple threads to handle stripes Date: Sat, 11 Aug 2012 16:45:34 +0800 Message-ID: <201208111645321254409@gmail.com> References: <20120809085808.GB30111@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Return-path: Sender: linux-raid-owner@vger.kernel.org To: shli , linux-raid Cc: Neil Brown , Dan Williams List-Id: linux-raid.ids T24gMjAxMi0wOC0wOSAxNjo1OCBTaGFvaHVhIExpIDxzaGxpQGtlcm5lbC5vcmc+IFdyb3RlOg0K PlRoaXMgaXMgYSBuZXcgdGVtcHQgdG8gbWFrZSByYWlkNSBoYW5kbGUgc3RyaXBlcyBpbiBtdWx0 aXBsZSB0aHJlYWRzLCBhcw0KPnN1Z2dlc3RlZCBieSBOZWlsIHRvIGhhdmUgbWF4aXVtIGZsZXhp YmlsaXR5IGFuZCBiZXR0ZXIgbnVtYSBiaW5kaW5nLiBJdA0KPmJhc2ljYWxseSBpcyBhIGNvbWJp bmF0aW9uIG9mIG15IGZpcnN0IGFuZCBzZWNvbmQgZ2VuZXJhdGlvbiBwYXRjaGVzLiBCeQ0KPmRl ZmF1bHQsIG5vIG11bHRpcGxlIHRocmVhZCBpcyBlbmFibGVkIChhbGwgc3RyaXBlcyBhcmUgaGFu ZGxlZCBieSByYWlkNWQpLg0KPg0KPkFuIGV4YW1wbGUgdG8gZW5hYmxlIG11bHRpcGxlIHRocmVh ZHM6DQo+I2VjaG8gMyA+IC9zeXMvYmxvY2svbWQwL21kL2F1eHRocmVhZF9udW1iZXINCj5UaGlz IHdpbGwgY3JlYXRlIDMgYXV4aWxpYXJ5IHRocmVhZHMgdG8gaGFuZGxlIHN0cmlwZXMuIFRoZSB0 aHJlYWRzIGNhbiBydW4NCj5vbiBhbnkgY3B1cyBhbmQgaGFuZGxlIHN0cmlwZXMgcHJvZHVjZWQg YnkgYW55IGNwdXMuDQo+DQo+I2VjaG8gMS0zID4gL3N5cy9ibG9jay9tZDAvbWQvYXV4dGgwL2Nw dWxpc3QNCj5UaGlzIHdpbGwgYmluZCBhdXhpbGlhcnkgdGhyZWFkIDAgdG8gY3B1IDEtMywgYW5k IHRoaXMgdGhyZWFkIHdpbGwgb25seSBoYW5kbGUNCj5zdHJpcGVzIHByb2R1Y2VkIGJ5IGNwdSAx LTMuIFVzZXIgdG9vbCBjYW4gZnVydGhlciBjaGFuZ2UgdGhlIHRocmVhZCdzDQo+YWZmaW5pdHks IGJ1dCB0aGUgdGhyZWFkIGNhbiBvbmx5IGhhbmRsZSBzdHJpcGVzIHByb2R1Y2VkIGJ5IGNwdSAx LTMgdGlsbCB0aGUNCj5zeXNmcyBlbnRyeSBpcyBjaGFuZ2VkIGFnYWluLg0KPg0KPklmIHN0cmlw ZXMgcHJvZHVjZWQgYnkgYSBDUFUgYXJlbid0IGhhbmRsZWQgYnkgYW55IGF1eGlsaWFyeSB0aHJl YWQsIHN1Y2gNCj5zdHJpcGVzIHdpbGwgYmUgaGFuZGxlZCBieSByYWlkNWQuIE90aGVyd2lzZSwg cmFpZDVkIGRvZXNuJ3QgaGFuZGxlIGFueQ0KPnN0cmlwZXMuDQo+DQpJIHRlc3RlZCBhbmQgZm91 bmQgdHdvIHByb2JsZW0obWF5YmUgbm90KS4NCg0KMTpwcmludCBjcHVsaXN0IG9mIGF1eHRoLCB5 b3UgbWF5YmUgbG9zdCBwcmludCB0aGUgJ1xuJy4NCmRpZmYgLS1naXQgYS9kcml2ZXJzL21kL3Jh aWQ1LmMgYi9kcml2ZXJzL21kL3JhaWQ1LmMNCmluZGV4IDdjODE1MWEuLjM3MDBjZGMgMTAwNjQ0 DQotLS0gYS9kcml2ZXJzL21kL3JhaWQ1LmMNCisrKyBiL2RyaXZlcnMvbWQvcmFpZDUuYw0KQEAg LTQ5MTEsOSArNDkxMSwxMyBAQCBzdHJ1Y3QgcmFpZDVfYXV4dGhfc3lzZnMgew0KIHN0YXRpYyBz c2l6ZV90IHJhaWQ1X3Nob3dfdGhyZWFkX2NwdWxpc3Qoc3RydWN0IG1kZGV2ICptZGRldiwNCiAg ICAgICAgc3RydWN0IHJhaWQ1X2F1eHRoICp0aHJlYWQsIGNoYXIgKnBhZ2UpDQogew0KKyAgICAg ICBpbnQgbjsNCiAgICAgICAgaWYgKCFtZGRldi0+cHJpdmF0ZSkNCiAgICAgICAgICAgICAgICBy ZXR1cm4gMDsNCi0gICAgICAgcmV0dXJuIGNwdWxpc3Rfc2NucHJpbnRmKHBhZ2UsIFBBR0VfU0la RSwgJnRocmVhZC0+d29ya19tYXNrKTsNCisgICAgICAgbiA9IGNwdWxpc3Rfc2NucHJpbnRmKHBh Z2UsIFBBR0VfU0laRSAtIDIsICZ0aHJlYWQtPndvcmtfbWFzayk7DQorICAgICAgIHBhZ2Vbbisr XSA9ICdcbic7DQorICAgICAgIHBhZ2Vbbl0gPSAwOw0KKyAgICAgICByZXR1cm4gbjsNCiB9DQog DQogc3RhdGljIHNzaXplX3QNCg0KMjogVGVzdCAnZGQgaWY9L2Rldi96ZXJvIG9mPS9kZXYvbWQw IGJzPTJNICcsIHRoZSBwZXJmb3JtYW5jZSByZWdyZXNzIHJlbWFya2FibGUuDQphdXh0aHJlYWRf bnVtYmVyPTAsIDIwME1CL3M7DQphdXh0aHJlYWRfbnVtYmVyPTQsIDk1TUIvcy4NCg0K