From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Mason Subject: Re: [PATCH] io_uring: add support for barrier fsync Date: Tue, 9 Apr 2019 18:42:55 +0000 Message-ID: <5BF7FDDE-212E-4F9A-9B50-26BDA99E952A@fb.com> References: <7c7276e4-8ffa-495a-6abf-926a58ee899e@kernel.dk> <20190409181742.GA24925@infradead.org> <5f8d9644-9e8f-c9d2-611e-4b144c62539c@kernel.dk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <5f8d9644-9e8f-c9d2-611e-4b144c62539c@kernel.dk> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Jens Axboe Cc: Christoph Hellwig , linux-fsdevel , "linux-block@vger.kernel.org" , "linux-api@vger.kernel.org" , "linux-kernel@vger.kernel.org" List-Id: linux-api@vger.kernel.org T24gOSBBcHIgMjAxOSwgYXQgMTQ6MjMsIEplbnMgQXhib2Ugd3JvdGU6DQoNCj4gT24gNC85LzE5 IDEyOjE3IFBNLCBDaHJpc3RvcGggSGVsbHdpZyB3cm90ZToNCj4+IE9uIFR1ZSwgQXByIDA5LCAy MDE5IGF0IDEwOjI3OjQzQU0gLTA2MDAsIEplbnMgQXhib2Ugd3JvdGU6DQo+Pj4gSXQncyBhIHF1 aXRlIGNvbW1vbiB1c2UgY2FzZSB0byBpc3N1ZSBhIGJ1bmNoIG9mIHdyaXRlcywgdGhlbiBhbiAN Cj4+PiBmc3luYw0KPj4+IG9yIGZkYXRhc3luYyB3aGVuIHRoZXkgY29tcGxldGUuIFNpbmNlIGlv X3VyaW5nIGRvZXNuJ3QgZ3VhcmFudGVlIA0KPj4+IGFueQ0KPj4+IHR5cGUgb2Ygb3JkZXJpbmcs IHRoZSBhcHBsaWNhdGlvbiBtdXN0IHRyYWNrIGlzc3VlZCB3cml0ZXMgYW5kIHdhaXQNCj4+PiB3 aXRoIHRoZSBmc3luYyBpc3N1ZSB1bnRpbCB0aGV5IGhhdmUgY29tcGxldGVkLg0KPj4+DQo+Pj4g QWRkIGFuIElPUklOR19GU1lOQ19CQVJSSUVSIGZsYWcgdGhhdCBoZWxwcyB3aXRoIHRoaXMgc28g dGhlIA0KPj4+IGFwcGxpY2F0aW9uDQo+Pj4gZG9lc24ndCBoYXZlIHRvIGRvIHRoaXMgbWFudWFs bHkuIElmIHRoaXMgZmxhZyBpcyBzZXQgZm9yIHRoZSBmc3luYw0KPj4+IHJlcXVlc3QsIHdlIHdv bid0IGlzc3VlIGl0IHVudGlsIHBlbmRpbmcgSU8gaGFzIGFscmVhZHkgY29tcGxldGVkLg0KPj4N Cj4+IEkgdGhpbmsgd2UgbmVlZCBhIG11Y2ggbW9yZSBkZXRhaWxlZCBleHBsYW5hdGlvbiBvZiB0 aGUgc2VtYW50aWNzLA0KPj4gcHJlZmVyYWJseSBpbiBtYW4gcGFnZSBmb3JtYXQuDQo+Pg0KPj4g QmFycmllciBhdCBsZWFzdCBpbiBMaW51eCB0cmFkaXRpb25hbGx5IG1lYW5zIGFsbCBwcmV2aW91 c2x5IA0KPj4gc3VibWl0dGVkDQo+PiByZXF1ZXN0cyBoYXZlIGZpbmlzaGVkIGFuZCBubyBuZXcg b25lcyBhcmUgc3RhcnRlZCB1bnRpbCB0aGUNCj4+IGJhcnJpZXIgcmVxdWVzdCBmaW5pc2hlcywg d2hpY2ggaXMgdmVyeSBoZWF2eSBoYW5kZWQuICBJcyB0aGF0IHdoYXQNCj4+IHRoaXMgaXMgc3Vw cG9zZWQgdG8gZG8/ICBJZiBub3Qgd2hhdCBhcmUgdGhlIGV4YWN0IGd1YXJhbnRlZXMgdnMNCj4+ IG9yZGVyaW5nIGFuZCBvciBiYXJyaWVyIHNlbWFudGljcz8NCj4NCj4gVGhlIHBhdGNoIGRlc2Ny aXB0aW9uIGlzbid0IHRoYXQgZ3JlYXQsIGFuZCBtYXliZSB0aGUgbmFtaW5nIGlzbid0IA0KPiB0 aGF0DQo+IGludHVpdGl2ZSBlaXRoZXIuIFRoZSB3YXkgaXQncyBpbXBsZW1lbnRlZCwgdGhlIGZz eW5jIHdpbGwgTk9UIGJlIA0KPiBpc3N1ZWQNCj4gdW50aWwgcHJldmlvdXNseSBpc3N1ZWQgSU9z IGhhdmUgY29tcGxldGVkLiBUaGF0IG1lYW5zIGJvdGggcmVhZHMgYW5kDQo+IHdyaXRlcywgc2lu Y2UgdGhlcmUncyBubyB3YXkgdG8gd2FpdCBmb3IganVzdCBvbmUuICBJbiB0ZXJtcyBvZg0KPiBz ZW1hbnRpY3MsIGFueSBwcmV2aW91c2x5IHN1Ym1pdHRlZCB3cml0ZXMgd2lsbCBoYXZlIGNvbXBs ZXRlZCBiZWZvcmUNCj4gdGhpcyBmc3luYyBpcyBpc3N1ZWQuIFRoZSBiYXJyaWVyIGZzeW5jIGhh cyBubyBvcmRlcmluZyB3cnQgZnV0dXJlDQo+IHdyaXRlcywgbm8gb3JkZXJpbmcgaXMgaW1wbGll ZCB0aGVyZS4gSGVuY2U6DQo+DQo+IFcxLCBXMiwgVzMsIEZTWU5DX1dfQkFSUklFUiwgVzQsIFc1 DQo+DQo+IFcxLi4zIHdpbGwgaGF2ZSBiZWVuIGNvbXBsZXRlZCBieSB0aGUgaGFyZHdhcmUgc2lk ZSBiZWZvcmUgd2Ugc3RhcnQNCj4gRlNZTkNfV19CQVJSSUVSLiBXZSBkb24ndCB3YWl0IHdpdGgg aXNzdWluZyBXNC4uNSB1bnRpbCBhZnRlciB0aGUgDQo+IGZzeW5jDQo+IGNvbXBsZXRlcywgbm8g b3JkZXJpbmcgaXMgcHJvdmlkZWQgdGhlcmUuDQoNCkxvb2tpbmcgYXQgdGhlIHBhdGNoLCB3aHkg aXMgZnN5bmMgc3BlY2lhbD8gIFNlZW1zIGxpa2UgeW91IGNvdWxkIGFkZCANCnRoaXMgb3JkZXJp bmcgYml0IHRvIGFueSB3cml0ZT8NCg0KV2hpbGUgeW91J3JlIGhlcmUsIGRvIHlvdSB3YW50IHRv IGFkZCBhIHdheSB0byBGVUEvY2FjaGUgZmx1c2g/ICANCkJhc2ljYWxseSB0aGUgcmVzdCBvZiB3 aGF0IHVzZXIgbGFuZCB3b3VsZCBuZWVkIHRvIG1ha2UgdGhlaXIgb3duIA0Kd3JpdGUtYmFjay1j YWNoZS1zYWZlIGltcGxlbWVudGF0aW9uLg0KDQotY2hyaXMNCg==