From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 1/4] mm: Check if mmu notifier callbacks are allowed to fail Date: Tue, 18 Jun 2019 17:22:15 +0200 Message-ID: <20190618152215.GG12905@phenom.ffwll.local> References: <20190520213945.17046-1-daniel.vetter@ffwll.ch> <20190521154411.GD3836@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-ed1-x541.google.com (mail-ed1-x541.google.com [IPv6:2a00:1450:4864:20::541]) by gabe.freedesktop.org (Postfix) with ESMTPS id C24DC6E17E for ; Tue, 18 Jun 2019 15:22:19 +0000 (UTC) Received: by mail-ed1-x541.google.com with SMTP id r12so20103548edo.5 for ; Tue, 18 Jun 2019 08:22:19 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20190521154411.GD3836@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jerome Glisse Cc: Michal Hocko , Daniel Vetter , Intel Graphics Development , LKML , DRI Development , Linux MM , Paolo Bonzini , David Rientjes , Daniel Vetter , Andrew Morton , Christian =?iso-8859-1?Q?K=F6nig?= List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCBNYXkgMjEsIDIwMTkgYXQgMTE6NDQ6MTFBTSAtMDQwMCwgSmVyb21lIEdsaXNzZSB3 cm90ZToKPiBPbiBNb24sIE1heSAyMCwgMjAxOSBhdCAxMTozOTo0MlBNICswMjAwLCBEYW5pZWwg VmV0dGVyIHdyb3RlOgo+ID4gSnVzdCBhIGJpdCBvZiBwYXJhbm9pYSwgc2luY2UgaWYgd2Ugc3Rh cnQgcHVzaGluZyB0aGlzIGRlZXAgaW50bwo+ID4gY2FsbGNoYWlucyBpdCdzIGhhcmQgdG8gc3Bv dCBhbGwgcGxhY2VzIHdoZXJlIGFuIG1tdSBub3RpZmllcgo+ID4gaW1wbGVtZW50YXRpb24gbWln aHQgZmFpbCB3aGVuIGl0J3Mgbm90IGFsbG93ZWQgdG8uCj4gPiAKPiA+IEluc3BpcmVkIGJ5IHNv bWUgY29uZnVzaW9uIHdlIGhhZCBkaXNjdXNzaW5nIGk5MTUgbW11IG5vdGlmaWVycyBhbmQKPiA+ IHdoZXRoZXIgd2UgY291bGQgdXNlIHRoZSBuZXdseS1pbnRyb2R1Y2VkIHJldHVybiB2YWx1ZSB0 byBoYW5kbGUgc29tZQo+ID4gY29ybmVyIGNhc2VzLiBVbnRpbCB3ZSByZWFsaXplZCB0aGF0IHRo ZXNlIGFyZSBvbmx5IGZvciB3aGVuIGEgdGFzawo+ID4gaGFzIGJlZW4ga2lsbGVkIGJ5IHRoZSBv b20gcmVhcGVyLgo+ID4gCj4gPiBBbiBhbHRlcm5hdGl2ZSBhcHByb2FjaCB3b3VsZCBiZSB0byBz cGxpdCB0aGUgY2FsbGJhY2sgaW50byB0d28KPiA+IHZlcnNpb25zLCBvbmUgd2l0aCB0aGUgaW50 IHJldHVybiB2YWx1ZSwgYW5kIHRoZSBvdGhlciB3aXRoIHZvaWQKPiA+IHJldHVybiB2YWx1ZSBs aWtlIGluIG9sZGVyIGtlcm5lbHMuIEJ1dCB0aGF0J3MgYSBsb3QgbW9yZSBjaHVybiBmb3IKPiA+ IGZhaXJseSBsaXR0bGUgZ2FpbiBJIHRoaW5rLgo+ID4gCj4gPiBTdW1tYXJ5IGZyb20gdGhlIG0t bCBkaXNjdXNzaW9uIG9uIHdoeSB3ZSB3YW50IHNvbWV0aGluZyBhdCB3YXJuaW5nCj4gPiBsZXZl bDogVGhpcyBhbGxvd3MgYXV0b21hdGVkIHRvb2xpbmcgaW4gQ0kgdG8gY2F0Y2ggYnVncyB3aXRo b3V0Cj4gPiBodW1hbnMgaGF2aW5nIHRvIGxvb2sgYXQgZXZlcnl0aGluZy4gSWYgd2UganVzdCB1 cGdyYWRlIHRoZSBleGlzdGluZwo+ID4gcHJfaW5mbyB0byBhIHByX3dhcm4sIHRoZW4gd2UnbGwg aGF2ZSBmYWxzZSBwb3NpdGl2ZXMuIEFuZCBhcy1pcywgbm8KPiA+IG9uZSB3aWxsIGV2ZXIgc3Bv dCB0aGUgcHJvYmxlbSBzaW5jZSBpdCdzIGxvc3QgaW4gdGhlIG1hc3NpdmUgYW1vdW50cwo+ID4g b2Ygb3ZlcmFsbCBkbWVzZyBub2lzZS4KPiA+IAo+ID4gdjI6IERyb3AgdGhlIGZ1bGwgV0FSTl9P TiBiYWNrdHJhY2UgaW4gZmF2b3VyIG9mIGp1c3QgYSBwcl93YXJuIGZvcgo+ID4gdGhlIHByb2Js ZW1hdGljIGNhc2UgKE1pY2hhbCBIb2NrbykuCj4gPiAKPiA+IHYzOiBSZWJhc2Ugb24gdG9wIG9m IEdsaXNzZSdzIGFyZyByZXdvcmsuCj4gPiAKPiA+IHY0OiBNb3JlIHJlYmFzZSBvbiB0b3Agb2Yg R2xpc3NlIHJld29ya2luZyBldmVyeXRoaW5nLgo+ID4gCj4gPiBDYzogQW5kcmV3IE1vcnRvbiA8 YWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZz4KPiA+IENjOiBNaWNoYWwgSG9ja28gPG1ob2Nrb0Bz dXNlLmNvbT4KPiA+IENjOiAiQ2hyaXN0aWFuIEvDtm5pZyIgPGNocmlzdGlhbi5rb2VuaWdAYW1k LmNvbT4KPiA+IENjOiBEYXZpZCBSaWVudGplcyA8cmllbnRqZXNAZ29vZ2xlLmNvbT4KPiA+IENj OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgo+ID4gQ2M6ICJKw6lyw7Rt ZSBHbGlzc2UiIDxqZ2xpc3NlQHJlZGhhdC5jb20+Cj4gPiBDYzogbGludXgtbW1Aa3ZhY2sub3Jn Cj4gPiBDYzogUGFvbG8gQm9uemluaSA8cGJvbnppbmlAcmVkaGF0LmNvbT4KPiA+IFJldmlld2Vk LWJ5OiBDaHJpc3RpYW4gS8O2bmlnIDxjaHJpc3RpYW4ua29lbmlnQGFtZC5jb20+Cj4gPiBTaWdu ZWQtb2ZmLWJ5OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGludGVsLmNvbT4KPiAKPiBS ZXZpZXdlZC1ieTogSsOpcsO0bWUgR2xpc3NlIDxqZ2xpc3NlQHJlZGhhdC5jb20+CgotbW0gZm9s a3MsIGlzIHRoaXMgKGVudGlyZSBzZXJpZXMgb2YgNCBwYXRjaGVzKSBwbGFubmVkIHRvIGxhbmQg aW4gdGhlIDUuMwptZXJnZSB3aW5kb3c/IE9yIGRvIHlvdSB3YW50IG1vcmUgcmV2aWV3cy90ZXN0 aW5nL3BvbGlzaD8KCkkgdGhpbmsgd2l0aCBhbGwgdGhlIGhtbSByZXdvcmsgZ29pbmcgb24sIGEg Yml0IG1vcmUgdmFsaWRhdGlvbiBhbmQgY2hlY2tzCmluIHRoaXMgdHJpY2t5IGFyZWEgd291bGQg aGVscC4KClRoYW5rcywgRGFuaWVsCgo+IAo+ID4gLS0tCj4gPiAgbW0vbW11X25vdGlmaWVyLmMg fCAzICsrKwo+ID4gIDEgZmlsZSBjaGFuZ2VkLCAzIGluc2VydGlvbnMoKykKPiA+IAo+ID4gZGlm ZiAtLWdpdCBhL21tL21tdV9ub3RpZmllci5jIGIvbW0vbW11X25vdGlmaWVyLmMKPiA+IGluZGV4 IGVlMzYwNjgwNzdiNi4uYzA1ZTQwNmE3Y2Q3IDEwMDY0NAo+ID4gLS0tIGEvbW0vbW11X25vdGlm aWVyLmMKPiA+ICsrKyBiL21tL21tdV9ub3RpZmllci5jCj4gPiBAQCAtMTgxLDYgKzE4MSw5IEBA IGludCBfX21tdV9ub3RpZmllcl9pbnZhbGlkYXRlX3JhbmdlX3N0YXJ0KHN0cnVjdCBtbXVfbm90 aWZpZXJfcmFuZ2UgKnJhbmdlKQo+ID4gIAkJCQlwcl9pbmZvKCIlcFMgY2FsbGJhY2sgZmFpbGVk IHdpdGggJWQgaW4gJXNibG9ja2FibGUgY29udGV4dC5cbiIsCj4gPiAgCQkJCQltbi0+b3BzLT5p bnZhbGlkYXRlX3JhbmdlX3N0YXJ0LCBfcmV0LAo+ID4gIAkJCQkJIW1tdV9ub3RpZmllcl9yYW5n ZV9ibG9ja2FibGUocmFuZ2UpID8gIm5vbi0iIDogIiIpOwo+ID4gKwkJCQlpZiAoIW1tdV9ub3Rp Zmllcl9yYW5nZV9ibG9ja2FibGUocmFuZ2UpKQo+ID4gKwkJCQkJcHJfd2FybigiJXBTIGNhbGxi YWNrIGZhaWx1cmUgbm90IGFsbG93ZWRcbiIsCj4gPiArCQkJCQkJbW4tPm9wcy0+aW52YWxpZGF0 ZV9yYW5nZV9zdGFydCk7Cj4gPiAgCQkJCXJldCA9IF9yZXQ7Cj4gPiAgCQkJfQo+ID4gIAkJfQo+ ID4gLS0gCj4gPiAyLjIwLjEKPiA+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCj4gZHJpLWRldmVsIG1haWxpbmcgbGlzdAo+IGRyaS1kZXZlbEBsaXN0 cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2RyaS1kZXZlbAoKLS0gCkRhbmllbCBWZXR0ZXIKU29mdHdhcmUgRW5naW5lZXIs IEludGVsIENvcnBvcmF0aW9uCmh0dHA6Ly9ibG9nLmZmd2xsLmNoCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50 ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeA==