From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 1/5] drm/prime: fix potential race in drm_gem_map_detach Date: Tue, 6 Mar 2018 10:39:38 +0100 Message-ID: <20180306093938.GR22212@phenom.ffwll.local> References: <20180227115000.4105-1-christian.koenig@amd.com> <1519811307.6253.5.camel@pengutronix.de> <3a4f9020-235d-ef05-a246-1ba920070f09@gmail.com> <20180306091541.GK22212@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-x230.google.com (mail-wm0-x230.google.com [IPv6:2a00:1450:400c:c09::230]) by gabe.freedesktop.org (Postfix) with ESMTPS id 33BC56E5E6 for ; Tue, 6 Mar 2018 09:39:42 +0000 (UTC) Received: by mail-wm0-x230.google.com with SMTP id e194so2409258wmd.3 for ; Tue, 06 Mar 2018 01:39:41 -0800 (PST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: christian.koenig@amd.com Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCBNYXIgMDYsIDIwMTggYXQgMTA6MzA6NTZBTSArMDEwMCwgQ2hyaXN0aWFuIEvDtm5p ZyB3cm90ZToKPiBBbSAwNi4wMy4yMDE4IHVtIDEwOjE1IHNjaHJpZWIgRGFuaWVsIFZldHRlcjoK PiA+IE9uIFdlZCwgRmViIDI4LCAyMDE4IGF0IDExOjI1OjU5QU0gKzAxMDAsIENocmlzdGlhbiBL w7ZuaWcgd3JvdGU6Cj4gPiA+IEFtIDI4LjAyLjIwMTggdW0gMTA6NDggc2NocmllYiBMdWNhcyBT dGFjaDoKPiA+ID4gPiBIaSBDaHJpc3RpYW4sCj4gPiA+ID4gCj4gPiA+ID4gQW0gRGllbnN0YWcs IGRlbiAyNy4wMi4yMDE4LCAxMjo0OSArMDEwMCBzY2hyaWViIENocmlzdGlhbiBLw7ZuaWc6Cj4g PiA+ID4gPiBVbnBpbiB0aGUgR0VNIG9iamVjdCBvbmx5IGFmdGVyIGZyZWVpbmcgdGhlIHNnIHRh YmxlLgo+ID4gPiA+IFdoYXQgaXMgdGhlIHJhY2UgdGhhdCBpcyBiZWluZyBmaXhlZCBoZXJlPyBU aGUgU0cgdGFibGUgaXMgcHJpdmF0ZSB0bwo+ID4gPiA+IHRoZSBpbXBvcnRlciBhbmQgdGhlIGlt cG9ydGVyIHNob3VsZCBob3BlZnVsbHkgb25seSBjYWxsIG1hcF9kZXRhY2ggaWYKPiA+ID4gPiBp dCBpcyBkb25lIHdpdGggYWxsIG9wZXJhdGlvbnMgdXNpbmcgdGhlIFNHIHRhYmxlLiBUaHVzIGl0 IHNob3VsZG4ndAo+ID4gPiA+IG1hdHRlciB0aGF0IHRoZSBTRyB0YWJsZSBtaWdodCBwb2ludCB0 byBtb3ZlZCBwYWdlcyBkdXJpbmcgZXhlY3V0aW9uIG9mCj4gPiA+ID4gdGhpcyBmdW5jdGlvbi4K PiA+ID4gRXhhY3RseSwgaXQgc2hvdWxkbid0IG1hdHRlci4gVGhpcyBpcyBqdXN0IGEgcHJlY2F1 dGlvbi4KPiA+ID4gCj4gPiA+IFdoZW4gdGhlIGRldmljZSBkcml2ZXIgaXMgYnVnZ3kgSSB3YW50 IHByb3BlciBlcnJvciBtZXNzYWdlcyBmcm9tIElPTU1VIGFuZAo+ID4gPiBub3QgYWNjZXNzaW5n IHBhZ2VzIHdoaWNoIG1pZ2h0IGFscmVhZHkgYmUgcmV1c2VkIGZvciBzb21ldGhpbmcgZWxzZS4K PiA+IFBsZWFzZSBhZGQgdGhpcyB0byB0aGUgY29tbWl0IG1lc3NhZ2UsIHJhdGhlciBjcnVjaWFs IHRvIHVuZGVyc3RhbmQgdGhlCj4gPiBtb3RpdmF0aW9uLiBXaXRoIHRoYXQgZml4ZWQgeW91IGNh biBoYXZlIG15Cj4gPiAKPiA+IFJldmlld2VkLWJ5OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwudmV0 dGVyQGZmd2xsLmNoPgo+ID4gCj4gPiBBbmQgcGxzIHB1c2ggdG8gZHJtLW1pc2MuCj4gCj4gQ2Fu IEkgdXNlIHN0YW5kYXJkIGdpdCBmb3IgdGhhdCBub3c/IEkgcmVhbGx5IGRvbid0IHdhbnQgdG8g bWVzcyB3aXRoIGRpbSBpbgo+IG15IGVudmlyb25tZW50LgoKUGluZyBBbGV4IHRvIHJ1biBpdCBm b3IgeW91IHBsZWFzZS4gSW4gYW4gaWRlYWwgd29ybGQgd2UnZCBydW4gYWxsIHRoYXQKc3R1ZmYg c2VydmVyLXNpZGUsIGJ1dCB0aGF0J3Mgbm90IGhhcHBlbmluZyBhbnl0aW1lIHNvb24uCgpBbHNv IGlmIHlvdSBoYXZlIGFueSBzcGVjaWZpYyBpc3N1ZXMgYWJvdXQgZGltIHN0b21waW5nIG92ZXIg eW91ciBzZXR1cCwKd2UnbGwgYmUgaGFwcHkgdG8gZml4IGl0LiBJZiB5b3Ugc2V0IHRoZSAocmVs YXRpdmUpIHBhdGhzIGNvcnJlY3RseSB5b3UKY2FuIGhpZGUgdGhlIHZhcmlvdXMgYWRkaXRpb25h bCBjaGVja291dHMgaXQgbmVlZHMgcmF0aGVyIHdlbGwuCi1EYW5pZWwKLS0gCkRhbmllbCBWZXR0 ZXIKU29mdHdhcmUgRW5naW5lZXIsIEludGVsIENvcnBvcmF0aW9uCmh0dHA6Ly9ibG9nLmZmd2xs LmNoCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1k ZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=