From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jianpeng Ma" Subject: [PATCH 3/3] raid5: Fix to_read/to_write judgement. Date: Sat, 22 Sep 2012 10:22:58 +0800 Message-ID: <201209221022560932318@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 SW4gZnVuYyBhbmFseXNlX3N0cmlwZSwgaXQgYWRkZWQgdG9fcmVhZC90b193cml0ZSBieQ0Kc2gt PmRldltpXS0+dG9yZWFkL3Rvd3JpdGUuDQpJZiBzdHJpcGUgZmFpbGVkLCBpbiBmdW5jIGhhbmRs ZV9mYWlsZWRfc3RyaXBlIGl0IGRlY3JlYXNlZA0KdG9fcmVhZC90b193cml0ZSBhbHNvIGJ5IHNo LT5kZXZbaV0tPnRvcmVhZC90b3dyaXRlLg0KQnV0IGJldHdlZW4gZnVuYyBhbmFseXNlX3N0cmlw ZSBhbmQgaGFuZGxlX2ZhaWxlZF9zdHJpcGUsIHRvcmVhZC90b3dyaXRlDQpjYW4gY2hhbmdlLlNv IHRoZSB0b19yZWFkL3RvX3dyaXRlIG1heWJlIGxlc3MgemVyby4NCkZvciBleGFtcGxlLCBpZiB0 b193cml0ZSB3YXMgbGVzcyB6ZXJvLGl0IG1heSBpbnRyb2R1Y2UgYSBidWcgaW4gZnVuYyBhc3lu Y194b3I6DQonQlVHX09OKHNyY19jbnQgPD0gMSk7Jy4NClNvIGFmdGVyIGhhbmRsZV9mYWlsZWRf c3RyaXBlLGl0IHNob3VsZCB1c2UgJ3RvX3JlYWQvdG9fd3JpdGUgPiAwJyBpbnN0ZWFkDQpvZiBq dWRnaW5nICd0b19yZWFkL3RvX3dyaXRlJy4NCg0KU2lnbmVkLW9mZi1ieTogSmlhbnBlbmcgTWEg PG1hamlhbnBlbmdAZ21haWwuY29tPg0KLS0tDQogZHJpdmVycy9tZC9yYWlkNS5jIHwgICAgOCAr KysrLS0tLQ0KIDEgZmlsZSBjaGFuZ2VkLCA0IGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25zKC0p DQoNCmRpZmYgLS1naXQgYS9kcml2ZXJzL21kL3JhaWQ1LmMgYi9kcml2ZXJzL21kL3JhaWQ1LmMN CmluZGV4IGE1NmFhNWIuLjU1NGNhOWUgMTAwNjQ0DQotLS0gYS9kcml2ZXJzL21kL3JhaWQ1LmMN CisrKyBiL2RyaXZlcnMvbWQvcmFpZDUuYw0KQEAgLTI2NDEsNyArMjY0MSw3IEBAIHN0YXRpYyBp bnQgZmV0Y2hfYmxvY2soc3RydWN0IHN0cmlwZV9oZWFkICpzaCwgc3RydWN0IHN0cmlwZV9oZWFk X3N0YXRlICpzLA0KIAkgICAgIChzLT5mYWlsZWQgPj0gMiAmJiBmZGV2WzFdLT50b3JlYWQpIHx8 DQogCSAgICAgKHNoLT5yYWlkX2NvbmYtPmxldmVsIDw9IDUgJiYgcy0+ZmFpbGVkICYmIGZkZXZb MF0tPnRvd3JpdGUgJiYNCiAJICAgICAgIXRlc3RfYml0KFI1X09WRVJXUklURSwgJmZkZXZbMF0t PmZsYWdzKSkgfHwNCi0JICAgICAoc2gtPnJhaWRfY29uZi0+bGV2ZWwgPT0gNiAmJiBzLT5mYWls ZWQgJiYgcy0+dG9fd3JpdGUpKSkgew0KKwkgICAgIChzaC0+cmFpZF9jb25mLT5sZXZlbCA9PSA2 ICYmIHMtPmZhaWxlZCAmJiBzLT50b193cml0ZSA+IDApKSkgew0KIAkJLyogd2Ugd291bGQgbGlr ZSB0byBnZXQgdGhpcyBibG9jaywgcG9zc2libHkgYnkgY29tcHV0aW5nIGl0LA0KIAkJICogb3Ro ZXJ3aXNlIHJlYWQgaXQgaWYgdGhlIGJhY2tpbmcgZGlzayBpcyBpbnN5bmMNCiAJCSAqLw0KQEAg LTM0NzEsOCArMzQ3MSw4IEBAIHN0YXRpYyB2b2lkIGhhbmRsZV9zdHJpcGUoc3RydWN0IHN0cmlw ZV9oZWFkICpzaCkNCiAJICogcGFyaXR5LCBvciB0byBzYXRpc2Z5IHJlcXVlc3RzDQogCSAqIG9y IHRvIGxvYWQgYSBibG9jayB0aGF0IGlzIGJlaW5nIHBhcnRpYWxseSB3cml0dGVuLg0KIAkgKi8N Ci0JaWYgKHMudG9fcmVhZCB8fCBzLm5vbl9vdmVyd3JpdGUNCi0JICAgIHx8IChjb25mLT5sZXZl bCA9PSA2ICYmIHMudG9fd3JpdGUgJiYgcy5mYWlsZWQpDQorCWlmIChzLnRvX3JlYWQgPiAwIHx8 IHMubm9uX292ZXJ3cml0ZQ0KKwkgICAgfHwgKGNvbmYtPmxldmVsID09IDYgJiYgcy50b193cml0 ZSA+IDAgJiYgcy5mYWlsZWQpDQogCSAgICB8fCAocy5zeW5jaW5nICYmIChzLnVwdG9kYXRlICsg cy5jb21wdXRlIDwgZGlza3MpKQ0KIAkgICAgfHwgcy5yZXBsYWNpbmcNCiAJICAgIHx8IHMuZXhw YW5kaW5nKQ0KQEAgLTM1MTksNyArMzUxOSw3IEBAIHN0YXRpYyB2b2lkIGhhbmRsZV9zdHJpcGUo c3RydWN0IHN0cmlwZV9oZWFkICpzaCkNCiAJICogMi8gQSAnY2hlY2snIG9wZXJhdGlvbiBpcyBp biBmbGlnaHQsIGFzIGl0IG1heSBjbG9iYmVyIHRoZSBwYXJpdHkNCiAJICogICAgYmxvY2suDQog CSAqLw0KLQlpZiAocy50b193cml0ZSAmJiAhc2gtPnJlY29uc3RydWN0X3N0YXRlICYmICFzaC0+ Y2hlY2tfc3RhdGUpDQorCWlmIChzLnRvX3dyaXRlID4gMCAmJiAhc2gtPnJlY29uc3RydWN0X3N0 YXRlICYmICFzaC0+Y2hlY2tfc3RhdGUpDQogCQloYW5kbGVfc3RyaXBlX2RpcnR5aW5nKGNvbmYs IHNoLCAmcywgZGlza3MpOw0KIA0KIAkvKiBtYXliZSB3ZSBuZWVkIHRvIGNoZWNrIGFuZCBwb3Nz aWJseSBmaXggdGhlIHBhcml0eSBmb3IgdGhpcyBzdHJpcGUNCi0tIA0KMS43LjkuNQ0K