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Wong" , Jan Kara , Matthew Wilcox , cluster-devel , linux-fsdevel , Linux Kernel Mailing List , "ocfs2-devel@oss.oracle.com" Subject: RE: [PATCH v4 1/8] iov_iter: Introduce iov_iter_fault_in_writeable helper Thread-Topic: [PATCH v4 1/8] iov_iter: Introduce iov_iter_fault_in_writeable helper Thread-Index: AQHXgMWAppW/hO87w0mGvb576BwgJqtWjhtg Date: Tue, 27 Jul 2021 09:30:02 +0000 Message-ID: <03e0541400e946cf87bc285198b82491@AcuMS.aculab.com> References: <20210724193449.361667-1-agruenba@redhat.com> <20210724193449.361667-2-agruenba@redhat.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMjQgSnVseSAyMDIxIDIwOjUzDQo+IA0KPiBP biBTYXQsIEp1bCAyNCwgMjAyMSBhdCAxMjozNSBQTSBBbmRyZWFzIEdydWVuYmFjaGVyDQo+IDxh Z3J1ZW5iYUByZWRoYXQuY29tPiB3cm90ZToNCj4gPg0KPiA+ICtpbnQgaW92X2l0ZXJfZmF1bHRf aW5fd3JpdGVhYmxlKGNvbnN0IHN0cnVjdCBpb3ZfaXRlciAqaSwgc2l6ZV90IGJ5dGVzKQ0KPiA+ ICt7DQo+IC4uLg0KPiA+ICsgICAgICAgICAgICAgICAgICAgICAgIGlmIChmYXVsdF9pbl91c2Vy X3BhZ2VzKHN0YXJ0LCBsZW4sIHRydWUpICE9IGxlbikNCj4gPiArICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgIHJldHVybiAtRUZBVUxUOw0KPiANCj4gTG9va2luZyBhdCB0aGlzIG9uY2Ug bW9yZSwgSSB0aGluayB0aGlzIGlzIGxpa2VseSB3cm9uZy4NCj4gDQo+IFdoeT8NCj4gDQo+IEJl Y2F1c2UgYW55IHVzZXIgY2FuL3Nob3VsZCBvbmx5IGNhcmUgYWJvdXQgYXQgbGVhc3QgKnBhcnQq IG9mIHRoZQ0KPiBhcmVhIGJlaW5nIHdyaXRhYmxlLg0KPiANCj4gSW1hZ2luZSB0aGF0IHlvdSdy ZSBkb2luZyBhIGxhcmdlIHJlYWQuIElmIHRoZSAqZmlyc3QqIHBhZ2UgaXMNCj4gd3JpdGFibGUs IHlvdSBzaG91bGQgc3RpbGwgcmV0dXJuIHRoZSBwYXJ0aWFsIHJlYWQsIG5vdCAtRUZBVUxULg0K DQpNeSAyYy4uLg0KDQpJcyBpdCBhY3R1YWxseSB3b3J0aCBkb2luZyBhbnkgbW9yZSB0aGFuIGVu c3VyaW5nIHRoZSBmaXJzdCBieXRlDQpvZiB0aGUgYnVmZmVyIGlzIHBhZ2VkIGluIGJlZm9yZSBl bnRlcmluZyB0aGUgYmxvY2sgdGhhdCBoYXMNCnRvIGRpc2FibGUgcGFnZSBmYXVsdHM/DQoNCk1v c3Qgb2YgdGhlIGFsbCB0aGUgcGFnZXMgYXJlIHByZXNlbnQgc28gdGhlIElPIGNvbXBsZXRlcy4N Cg0KVGhlIHBhZ2VzIGNhbiBhbHdheXMgZ2V0IHVubWFwcGVkIChkdWUgdG8gcGFnZSBwcmVzc3Vy ZSBvcg0KYW5vdGhlciBhcHBsaWNhdGlvbiB0aHJlYWQgdW5tYXBwaW5nIHRoZW0pIHNvIHRoZXJl IG5lZWRzDQp0byBiZSBhIHJldHJ5IGxvb3AuDQpHaXZlbiB0aGUgY29zdCBvZiBhY3R1YWxseSBm YXVsdGluZyBpbiBhIHBhZ2UgZ29pbmcgYXJvdW5kDQp0aGUgb3V0ZXIgbG9vcCBtYXkgbm90IG1h dHRlci4NCkluZGVlZCwgaWYgYW4gYXBwbGljYXRpb24gaGFzIGp1c3QgbW1hcCgpZWQgaW4gYSB2 ZXJ5IGxhcmdlDQpmaWxlIGFuZCBpcyB0aGVuIGRvaW5nIGEgd3JpdGUoKSBmcm9tIGl0IHRoZW4g aXQgaXMgcXVpdGUNCmxpa2VseSB0aGF0IHRoZSBwYWdlcyBnb3QgdW5tYXBwZWQhDQoNCkNsZWFy bHkgdGhlcmUgbmVlZHMgdG8gYmUgZXh0cmEgY29kZSB0byBlbnN1cmUgcHJvZ3Jlc3MgaXMgbWFk ZS4NClRoaXMgbWlnaHQgYWN0dWFsbHkgcmVxdWlyZSB0aGUgdXNlIG9mICdib3VuY2UgYnVmZmVy cycNCmZvciByZWFsbHkgcHJvYmxlbWF0aWMgdXNlciByZXF1ZXN0cy4NCg0KSSBhbHNvIHdvbmRl ciB3aGF0IGFjdHVhbGx5IGhhcHBlbnMgZm9yIHBpcGVzIGFuZCBmaWZvcy4NCklJUkMgcmVhZHMg YW5kIHdyaXRlIG9mIHVwIHRvIFBJUEVfTUFYICh0eXBpY2FsbHkgNDA5NikNCmFyZSBleHBlY3Rl ZCB0byBiZSBhdG9taWMuDQpUaGlzIHNob3VsZCBiZSB0cnVlIGV2ZW4gaWYgdGhlcmUgYXJlIHBh Z2UgZmF1bHRzIHBhcnQgd2F5DQp0aHJvdWdoIHRoZSBjb3B5X3RvL2Zyb21fdXNlcigpLg0KDQpJ dCBoYXMgdG8gYmUgc2FpZCBJIGNhbid0IHNlZSBhbnkgcmVmZXJlbmNlIHRvIFBJUEVfTUFYDQpp biB0aGUgbGludXggbWFuIHBhZ2VzLCBidXQgSSdtIHN1cmUgaXQgaXMgaW4gdGhlIFBPU0lYL1RP Rw0Kc3BlYy4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJh bWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0 cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==