From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: Re: [PATCH] drm/i915/userptr: Acquire the page lock around set_page_dirty() Date: Tue, 09 Jul 2019 00:45:12 +0000 Message-ID: <20190709004513.002A62173C@mail.kernel.org> References: <20190708140327.26825-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id ABF2C89D61 for ; Tue, 9 Jul 2019 00:45:13 +0000 (UTC) In-Reply-To: <20190708140327.26825-1-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Sasha Levin , Chris Wilson , intel-gfx@lists.freedesktop.org Cc: stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org SGksCgpbVGhpcyBpcyBhbiBhdXRvbWF0ZWQgZW1haWxdCgpUaGlzIGNvbW1pdCBoYXMgYmVlbiBw cm9jZXNzZWQgYmVjYXVzZSBpdCBjb250YWlucyBhICJGaXhlczoiIHRhZywKZml4aW5nIGNvbW1p dDogNWNjOWVkNGI5YTdhIGRybS9pOTE1OiBJbnRyb2R1Y2UgbWFwcGluZyBvZiB1c2VyIHBhZ2Vz IGludG8gdmlkZW8gbWVtb3J5ICh1c2VycHRyKSBpb2N0bC4KClRoZSBib3QgaGFzIHRlc3RlZCB0 aGUgZm9sbG93aW5nIHRyZWVzOiB2NS4xLjE2LCB2NC4xOS41NywgdjQuMTQuMTMyLCB2NC45LjE4 NCwgdjQuNC4xODQuCgp2NS4xLjE2OiBCdWlsZCBPSyEKdjQuMTkuNTc6IEJ1aWxkIE9LIQp2NC4x NC4xMzI6IEJ1aWxkIE9LIQp2NC45LjE4NDogRmFpbGVkIHRvIGFwcGx5ISBQb3NzaWJsZSBkZXBl bmRlbmNpZXM6CiAgICAwZTcwNDQ3NjA1ZjQgKCJkcm0vaTkxNTogTW92ZSBjb21tb24gY29kZSBv dXQgb2YgaTkxNV9ncHVfZXJyb3IuYyIpCiAgICAxYjM2NTk1ZmZiMzUgKCJkcm0vaTkxNTogU2hv dyBSSU5HIHJlZ2lzdGVycyB0aHJvdWdoIGRlYnVnZnMiKQogICAgMjc1ZjAzOWRiNTZmICgiZHJt L2k5MTU6IE1vdmUgdXNlciBmYXVsdCB0cmFja2luZyB0byBhIHNlcGFyYXRlIGxpc3QiKQogICAg MzU5NGEzZTIxZjFmICgiZHJtL2k5MTU6IFJlbW92ZSBzdXBlcmZsdW91cyBsb2NraW5nIGFyb3Vu ZCB1c2VyZmF1bHRfbGlzdCIpCiAgICAzYjNmMTY1MGIxY2EgKCJkcm0vaTkxNTogQWxsb2NhdGUg aW50ZWxfZW5naW5lX2NzIHN0cnVjdHVyZSBvbmx5IGZvciB0aGUgZW5hYmxlZCBlbmdpbmVzIikK ICAgIDdjMTA4ZmQ4ZmVhYyAoImRybS9pOTE1OiBNb3ZlIGZlbmNlIGNhbmNlbGxhdGlvbiB0byBy dW50aW1lIHN1c3BlbmQiKQogICAgOGJhYTFmMDRiOWVkICgiZHJtL2k5MTU6IFVwZGF0ZSBkZWJ1 Z2ZzIGRlc2NyaWJlX29iaigpIHRvIHNob3cgZmF1bHQtbWFwcGFibGUiKQogICAgOTZkNzc2MzQ1 Mjc3ICgiZHJtL2k5MTU6IFVzZSBhIHJhZGl4dHJlZSBmb3IgcmFuZG9tIGFjY2VzcyB0byB0aGUg b2JqZWN0J3MgYmFja2luZyBzdG9yYWdlIikKICAgIDljODcwZDAzNjc0ZiAoImRybS9pOTE1OiBV c2UgUlBNIGFzIHRoZSBiYXJyaWVyIGZvciBjb250cm9sbGluZyB1c2VyIG1tYXAgYWNjZXNzIikK ICAgIGE0ZjVlYTY0ZjBhOCAoImRybS9pOTE1OiBSZWZhY3RvciBvYmplY3QgcGFnZSBBUEkiKQog ICAgZDYzNjk1MWVjMDFiICgiZHJtL2k5MTU6IENsZWFudXAgaW5zdGRvbmUgY29sbGVjdGlvbiIp CiAgICBmOGE3ZmRlNDU2MTAgKCJkcm0vaTkxNTogRGVmZXIgYWN0aXZlIHJlZmVyZW5jZSB1bnRp bCByZXF1aXJlZCIpCgp2NC40LjE4NDogRmFpbGVkIHRvIGFwcGx5ISBQb3NzaWJsZSBkZXBlbmRl bmNpZXM6CiAgICAwOWNiZmVhZjFhNWEgKCJtbSwgZnM6IGdldCByaWQgb2YgUEFHRV9DQUNIRV8q IGFuZCBwYWdlX2NhY2hlX3tnZXQscmVsZWFzZX0gbWFjcm9zIikKICAgIDBhNzk4ZWI5MmU2ZCAo ImRybS9pOTE1OiBSZWZhY3RvciBkdXBsaWNhdGUgb2JqZWN0IHZtYXAgZnVuY3Rpb25zIikKICAg IDBiNTM3MjcyN2JlMyAoImRybS9pOTE1L2NtZHBhcnNlcjogVXNlIGNhY2hlZCB2bWFwcGluZ3Mi KQogICAgMGU3NDllNTQyNDRlICgiZGF4OiBpbmNyZWFzZSBncmFudWxhcml0eSBvZiBkYXhfY2xl YXJfYmxvY2tzKCkgb3BlcmF0aW9ucyIpCiAgICAwZWI5NzNkMzFkMGEgKCJkcm0vaTkxNTogQ2Fj aGUgcmluZ2J1ZmZlciBHVFQgVk1BIikKICAgIDQzMzk0YzdkMGQzNiAoImRybS9pOTE1OiBFeHRy YWN0IGk5MTVfZ2VtX29ial9wcmVwYXJlX3NobWVtX3dyaXRlKCkiKQogICAgNDQyMGNmZDNmNTFj ICgic3RhZ2luZzogbHVzdHJlOiBmb3JtYXQgcHJvcGVybHkgYWxsIGNvbW1lbnQgYmxvY2tzIGZv ciBMTmV0IGNvcmUiKQogICAgNTJkYjQwMGZjZDUwICgicG1lbSwgZGF4OiBjbGVhbiB1cCBjbGVh cl9wbWVtKCkiKQogICAgNWZkODgzMzdkMjA5ICgic3RhZ2luZzogbHVzdHJlOiBmaXggYWxsIGNv bmRpdGlvbmFsIGNvbXBhcmlzb24gdG8gemVybyBpbiBMTmV0IGxheWVyIikKICAgIDg1ZDEyMjVl YzA2NiAoImRybS9pOTE1OiBJbnRyb2R1Y2UgJiB1c2UgbmV3IGxpZ2h0d2VpZ2h0IFNHTCBpdGVy YXRvcnMiKQogICAgYTE4ODIyMmI2ZWQyICgibmV0OiBSZW5hbWUgTkVUSUZfRl9BTExfQ1NVTSB0 byBORVRJRl9GX0NTVU1fTUFTSyIpCiAgICBhNGY1ZWE2NGYwYTggKCJkcm0vaTkxNTogUmVmYWN0 b3Igb2JqZWN0IHBhZ2UgQVBJIikKICAgIGIyZTBkMTYyNWUxOSAoImRheDogZml4IGxpZmV0aW1l IG9mIGluLWtlcm5lbCBkYXggbWFwcGluZ3Mgd2l0aCBkYXhfbWFwX2F0b21pYygpIikKICAgIGI5 YmNkMTRhMmI5MSAoImRybS9pOTE1OiBFeHRyYWN0IGNoZWNraW5nIGZvciBiYWNraW5nIHN0cnVj dCBwYWdlcyB0byBhIGhlbHBlciIpCiAgICBkMWE1ZjJiNGQ4YTEgKCJibG9jazogdXNlIERBWCBm b3IgcGFydGl0aW9uIHRhYmxlIHJlYWRzIikKICAgIGRlZjBjNWY2YjBjZCAoImRybS9pOTE1OiBN YXAgdGhlIHJpbmdidWZmZXIgdXNpbmcgV0Igb24gTExDIG1hY2hpbmVzIikKICAgIGUxMDYyNGY4 YzA5NyAoInBtZW06IGZhaWwgaW8tcmVxdWVzdHMgdG8ga25vd24gYmFkIGJsb2NrcyIpCgoKTk9U RTogVGhlIHBhdGNoIHdpbGwgbm90IGJlIHF1ZXVlZCB0byBzdGFibGUgdHJlZXMgdW50aWwgaXQg aXMgdXBzdHJlYW0uCgpIb3cgc2hvdWxkIHdlIHByb2NlZWQgd2l0aCB0aGlzIHBhdGNoPwoKLS0K VGhhbmtzLApTYXNoYQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1n Zng=