Return-Path: Received: from sydfw.pronto.com.au ([202.9.16.110]:41412 "EHLO NSWSMTP.pronto.com.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750822Ab1FHEMm (ORCPT ); Wed, 8 Jun 2011 00:12:42 -0400 From: Tristan Ball To: "J. Bruce Fields" , Wendy Cheng CC: "linux-nfs@vger.kernel.org" Subject: RE: NFS Sync with External Journal Date: Wed, 8 Jun 2011 03:57:13 +0000 Message-ID: <3FA034197108F04082D2AE1401CE0F3832AB05C6@VICMAILBOX.pronto.com.au> References: <3FA034197108F04082D2AE1401CE0F3832A9B34E@VICMAILBOX.pronto.com.au> <20110607232313.GG13911@fieldses.org> In-Reply-To: <20110607232313.GG13911@fieldses.org> Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 VGhlIHRlc3Qgd2FzOg0KDQpJb3pvbmUgLUkgMCAtciA2NGsgLXMgMkcgLXcNCg0KQWN0dWFsbHks IEkgc3RhcnRlZCB3aXRoIGEgbXVjaCBsYXJnZXIgdGVzdCBzdWl0ZSwgYW5kIEknbSBhY3R1YWxs eSBtb3N0IGludGVyZXN0ZWQgaW4gc21hbGwgcmFuZG9tIHdyaXRlIGxhdGVuY3ksIHJhdGhlciB0 aGFuIG92ZXJhbGwgdGhyb3VnaHB1dCwgYnV0IHRoZSBzZXF1ZW50aWFsIHdyaXRlcyB0ZXN0IG1h a2UgdGhlIGZpbGUgc3lzdGVtIHZzIGxvZyB3aGl0ZSBiZWhhdmlvdXIgb2J2aW91cyB2aWEgaW9z dGF0LiBJdCBhbHNvIHNlZW1zIHRoYXQgaW4gbXkgZW52aXJvbm1lbnQsIHRoZSBkaXNrIHdyaXRl IGxhdGVuY3kgYWN0dWFsbHkgbGltaXRzIHRocm91Z2hwdXQgc2xpZ2h0bHksIHByZXN1bWFibHkg YmVjYXVzZSB0aGUgZGVsYXkgaW4gc3luY2luZyBlYWNoIHdyaXRlIGRlbGF5cyByZXNwb25zZXMg YmFjayB0byB0aGUgY2xpZW50Pw0KDQpNeSBpbml0aWFsIHRlc3Qgd2FzIHdpdGggYSB3aXRoIGEg cGFpciBvZiBzdHJpcGVkIGRyaXZlcyBjYXBhYmxlIG9mIGFib3V0IDEzMC0xNjBNQi9zZWMgb24g bG9jYWwgd3JpdGVzICh0aGV5J3JlIDU0MDBycG0gbGFwdG9wIGRyaXZlcykuDQoNClNvbWUgc2xp Z2h0IHR1bmluZyAocmVtb3ZpbmcgdGhlIHJzaXplL3dzaXplIHBhcmFtZXRlcnMsIGFuZCBpbmNy ZWFzaW5nIHRoZSBbcnx3XW1lbV9kZWZhdWx0L21heCBwYXJhbWV0ZXJzIGdldHMgdGhlIE5GUyBz cGVlZCB1cCB0byBhYm91dCA4MG1iL3NlYyBvbiB3cml0ZXMuDQoNCkRvaW5nIHRoZSBleGFjdCBz YW1lIHRlc3Qgb24gYSBmaWxlc3lzdGVtIGJhY2tlZCBvbnRvIHNvbWUgU1NEJ3MgIGdldHMgbWUg dXAgdG8gYWJvdXQgMTAwLTEwNU1CIHNlYywgYWx0aG91Z2ggdGhlIHdyaXRlIGxhdGVuY3kgb24g dGhlc2UgaXMgbXVjaCBsb3dlciB0aGFuIHRoZSA1NDAwIGRpc2tzLg0KDQpJJ2xsIGdldCBiYWNr IHRvIHlvdSBvbiB0aGUgZXh0MyBtYWlsaW5nIGxpc3QgcmVzcG9uc2VzLCBJJ20gZ29pbmcgdG8g cmVkbyBteSB0ZXN0cyBvbiBleHQ0IGZpcnN0Lg0KDQpSZWdhcmRzLA0KICAgICAgICBUcmlzdGFu DQoNCg0KDQpUcmlzdGFuIEJhbGwgLSBIb3N0ZWQgU2VydmljZXMgTWFuYWdlciBWSUMNClByb250 byBIb3N0ZWQgU2VydmljZXMNCjIwIExha2VzaWRlIERyaXZlLCBCdXJ3b29kIEVhc3QsIFZJQyAz MTUxLCBBdXN0cmFsaWENClBob25lOiArNjEgMyA5ODg3IDc3NzAgfCBFbWFpbDogdHJpc3RhbmJA cHJvbnRvLmNvbS5hdQ0KTW9iaWxlOiArNjEgNDA4IDM5NyA0NzMNCnd3dy5wcm9udG8uY29tLmF1 DQoNCg0KLS0tTGVnYWwgTm90aWNlLS0tDQpUaGUgZW1haWwgbWVzc2FnZSBhbmQgYW55IGF0dGFj aG1lbnRzIGFyZSBjb25maWRlbnRpYWwgYW5kIHN1YmplY3QgdG8gY29weXJpZ2h0LiBJZiB5b3Ug YXJlIG5vdCB0aGUgaW50ZW5kZWQgcmVjaXBpZW50LCBhbnkgdXNlLCBpbnRlcmZlcmVuY2Ugd2l0 aCwgZGlzY2xvc3VyZSBvciBjb3B5aW5nIG9mIHRoaXMgbWF0ZXJpYWwgaXMgdW5hdXRob3Jpc2Vk IGFuZCBwcm9oaWJpdGVkLiBObyBwYXJ0IG1heSBiZSByZXByb2R1Y2VkLCBhZGFwdGVkIG9yIHRy YW5zbWl0dGVkIHdpdGhvdXQgdGhlIHdyaXR0ZW4gcGVybWlzc2lvbiBvZiB0aGUgY29weXJpZ2h0 IG93bmVyLiBJZiB5b3UgaGF2ZSByZWNlaXZlZCB0aGlzIGVtYWlsIGluIGVycm9yLCBwbGVhc2Ug aW1tZWRpYXRlbHkgYWR2aXNlIHRoZSBzZW5kZXIgYnkgcmV0dXJuIGVtYWlsIGFuZCBkZWxldGUg dGhlIG1lc3NhZ2UgZnJvbSB5b3VyIHN5c3RlbS4gQmVmb3JlIG9wZW5pbmcgb3IgdXNpbmcgYXR0 YWNobWVudHMsIGNoZWNrIGZvciB2aXJ1c2VzIGFuZCBkZWZlY3RzLiBPdXIgbGlhYmlsaXR5IGlz IGxpbWl0ZWQgdG8gcmUtc3VwcGx5aW5nIGFueSBhZmZlY3RlZCBhdHRhY2htZW50cy4NCg0KLS0t LS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCkZyb206IEouIEJydWNlIEZpZWxkcyBbbWFpbHRvOmJm aWVsZHNAZmllbGRzZXMub3JnXQ0KU2VudDogV2VkbmVzZGF5LCA4IEp1bmUgMjAxMSA5OjIzIEFN DQpUbzogV2VuZHkgQ2hlbmcNCkNjOiBUcmlzdGFuIEJhbGw7IGxpbnV4LW5mc0B2Z2VyLmtlcm5l bC5vcmcNClN1YmplY3Q6IFJlOiBORlMgU3luYyB3aXRoIEV4dGVybmFsIEpvdXJuYWwNCg0KT24g TW9uLCBKdW4gMDYsIDIwMTEgYXQgMDE6MTI6NTFQTSAtMDcwMCwgV2VuZHkgQ2hlbmcgd3JvdGU6 DQo+IFlvdSdsbCBwcm9iYWJseSBnZXQgYmV0dGVyIGFuc3dlcihzKSBmcm9tIGV4dDMgdXNlciBt YWlsaW5nIGxpc3QgLi4uLg0KPiBpdCBpcyBtb3JlIGFib3V0IGhvdyBqb3VybmFsaW5nIHdvcmtz IGZvciB0aGUgc3BlY2lmaWMgZmlsZSBzeXN0ZW0uDQoNClllcywgdGhvdWdoIGxlYXZlIGxpbnV4 LW5mcyBvbiB0aGUgY2M6IGFzIEknZCBiZSBpbnRlcmVzdGVkIHdoYXQgeW91IGZpbmQgb3V0Lg0K DQo+IEluIGV4dDMgY2FzZSwgSSBiZWxpZXZlICJzeW5jIiBmb3JjZXMgZGF0YSBnZXR0aW5nIGZs dXNoZWQgdG8gdGhlIGZpbGUNCj4gc3lzdGVtICpyZWdhcmRsZXNzKiB3aGljaCBqb3VybmFsIG1v ZGUgaXMgY2hvc2VuLiBVc2luZyBhbiBleHRlcm5hbA0KPiBqb3VybmFsIGRldmljZSwgcGFydGlj dWxhcmx5IG9uIFNTRCwgIGRvZXMgaGVscCBidXQgdGhlIHBlcmZvcm1hbmNlDQo+IGdhaW4gaXMg bGltaXRlZCBieSB0aGUgYW1vdW50IG9mIGRhdGEgdGhhdCBuZWVkcyB0byBiZSB3cml0dGVuIGlu dG8NCj4gdGhlIGZpbGUgc3lzdGVtIGl0c2VsZi4NCg0KPiA+IC9ldGMvZXhwb3J0czoNCj4gPiAv cGxhaW4gICAgICAgICAgKihydyxhc3luYyxub19zdWJ0cmVlX2NoZWNrLG5vX3Jvb3Rfc3F1YXNo KQ0KPiA+IC9zcGxpdCAgICAgICAgICAqKHJ3LGFzeW5jLG5vX3N1YnRyZWVfY2hlY2ssbm9fcm9v dF9zcXVhc2gpICMgKEZTDQo+ID4gd2l0aCBleHRlcm5hbCBKb3VybmFsKQ0KPiA+DQo+ID4gQ2xp ZW50IG1vdW50cyB3ZXJlIGRvbmUgc2ltcGx5IHdpdGggLW8gJ3J3LHJzaXplPTMyNzY4LHdzaXpl PTMyNzY4Jw0KPiA+DQo+ID4gQmVuY2htYXJrIHJlc3VsdHM6DQo+ID4gUGxhaW4gRXh0MywgZGF0 YT1vcmRlcmVkIGV4cG9ydD1zeW5jLCB3cml0ZSBzcGVlZCA1Ni02Mk1CL3NlYyBTcGxpdA0KPiA+ IEV4dDMsIGRhdGE9am91cm5hbCBleHBvcnQ9c3luYywgd3JpdGUgc3BlZWQgPSA0Ni01ME1CL3Nl Yw0KPiA+DQo+ID4gRm9yIHJlZmVyZW5jZToNCj4gPiBQbGFpbiBFeHQzLCBkYXRhPW9yZGVyZWQg ZXhwb3J0PWFzeW5jLCB3cml0ZSBzcGVlZCAxMTFNQi9zZWMgU3BsaXQNCj4gPiBFeHQzLCBkYXRh PWpvdXJuYWwgZXhwb3J0PWFzeW5jLCB3cml0ZSBzcGVlZCAxMTBNQi9zZWMNCg0KV2hhdCBleGFj dGx5IGlzIHlvdXIgdGVzdD8NCg0KRm9yIHN1ZmZpY2llbnRseSBsYXJnZSBzZXF1ZW50aWFsIHdy aXRlcywgSSB3b3VsZG4ndCBhY3R1YWxseSBoYXZlIGV4cGVjdGVkIHN5bmMgdnMuIGFzeW5jIHRv IG1ha2UgbXVjaCBkaWZmZXJlbmNlOiBldmVudHVhbGx5IHlvdSdyZSBsaW1pdGVkIGJ5IHRoZSBk cml2ZSBzcGVlZCAoSSdtIGFzc3VtaW5nIHlvdXIgZHJpdmUgZG9lcyB+NjBNQi9zIHdyaXRlIHRo cm91Z3B1dD8pLiAgQW5kIGluZGl2aWR1YWwgd3JpdGVzIChmb3IgTkZTIHYzIGFuZCBoaWdoZXIp IGFyZW4ndCBuZWNlc3NhcmlseSByZXF1aXJlZCB0byBiZSBzeW5jaHJvbm91cy4NCg0KQSBiZXR0 ZXIgdGVzdCB3b3VsZCBiZSBjcmVhdGluZyBvciBkZXN0cm95aW5nIGEgYnVuY2ggb2Ygc21hbGwg ZmlsZXMsIGFzIGNyZWF0ZSBhbmQgdW5saW5rIGFyZSBzeW5jaHJvbm91cyAodGhlIG5mcyBzZXJ2 ZXIgd29uJ3QgcmV0dXJuLCBpbiB0aGUgc3luYyBjYXNlLCBiZWZvcmUgZWFjaCBjcmVhdGUgYW5k IHVubGluayBhY3R1YWxseSBoaXRzIHRoZSBkaXNrKS4NCg0KLS1iLg0KTu+/ve+/ve+/ve+/ve+/ vXLvv73vv71577+977+977+9Yu+/vVjvv73vv73Hp3bvv71e77+9Kd66ey5u77+9K++/ve+/ve+/ ve+/vXvvv73vv73vv70i77+977+9Xm7vv71y77+977+977+9eu+/vRrvv73vv71o77+977+977+9 77+9Ju+/ve+/vR7vv71H77+977+977+9aO+/vQMo77+96ZqO77+93aJqIu+/ve+/vRrvv70bbe+/ ve+/ve+/ve+/ve+/vXrvv73elu+/ve+/ve+/vWbvv73vv73vv71o77+977+977+9fu+/vW3vv70=