From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 2/3] mm, notifier: Catch sleeping/blocking for !blockable Date: Fri, 23 Nov 2018 09:46:09 +0100 Message-ID: <20181123084609.GH4266@phenom.ffwll.local> References: <20181122165106.18238-1-daniel.vetter@ffwll.ch> <20181122165106.18238-3-daniel.vetter@ffwll.ch> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: 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: "Koenig, Christian" Cc: Michal Hocko , Daniel Vetter , Intel Graphics Development , LKML , DRI Development , Linux MM , =?iso-8859-1?B?Suly9G1l?= Glisse , David Rientjes , Daniel Vetter , Andrew Morton List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBOb3YgMjIsIDIwMTggYXQgMDY6NTU6MTdQTSArMDAwMCwgS29lbmlnLCBDaHJpc3Rp YW4gd3JvdGU6Cj4gQW0gMjIuMTEuMTggdW0gMTc6NTEgc2NocmllYiBEYW5pZWwgVmV0dGVyOgo+ ID4gV2UgbmVlZCB0byBtYWtlIHN1cmUgaW1wbGVtZW50YXRpb25zIGRvbid0IGNoZWF0IGFuZCBk b24ndCBoYXZlIGEKPiA+IHBvc3NpYmxlIHNjaGVkdWxlL2Jsb2NraW5nIHBvaW50IGRlZXBseSBi dXJyaWVkIHdoZXJlIHJldmlldyBjYW4ndAo+ID4gY2F0Y2ggaXQuCj4gPgo+ID4gSSdtIG5vdCBz dXJlIHdoZXRoZXIgdGhpcyBpcyB0aGUgYmVzdCB3YXkgdG8gbWFrZSBzdXJlIGFsbCB0aGUKPiA+ IG1pZ2h0X3NsZWVwKCkgY2FsbHNpdGVzIHRyaWdnZXIsIGFuZCBpdCdzIGEgYml0IHVnbHkgaW4g dGhlIGNvZGUgZmxvdy4KPiA+IEJ1dCBpdCBnZXRzIHRoZSBqb2IgZG9uZS4KPiA+Cj4gPiBDYzog QW5kcmV3IE1vcnRvbiA8YWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZz4KPiA+IENjOiBNaWNoYWwg SG9ja28gPG1ob2Nrb0BzdXNlLmNvbT4KPiA+IENjOiBEYXZpZCBSaWVudGplcyA8cmllbnRqZXNA Z29vZ2xlLmNvbT4KPiA+IENjOiAiQ2hyaXN0aWFuIEvDtm5pZyIgPGNocmlzdGlhbi5rb2VuaWdA YW1kLmNvbT4KPiA+IENjOiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgo+ ID4gQ2M6ICJKw6lyw7RtZSBHbGlzc2UiIDxqZ2xpc3NlQHJlZGhhdC5jb20+Cj4gPiBDYzogbGlu dXgtbW1Aa3ZhY2sub3JnCj4gPiBTaWduZWQtb2ZmLWJ5OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwu dmV0dGVyQGludGVsLmNvbT4KPiA+IC0tLQo+ID4gICBtbS9tbXVfbm90aWZpZXIuYyB8IDggKysr KysrKy0KPiA+ICAgMSBmaWxlIGNoYW5nZWQsIDcgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigt KQo+ID4KPiA+IGRpZmYgLS1naXQgYS9tbS9tbXVfbm90aWZpZXIuYyBiL21tL21tdV9ub3RpZmll ci5jCj4gPiBpbmRleCA1OWUxMDI1ODlhMjUuLjRkMjgyY2ZiMjk2ZSAxMDA2NDQKPiA+IC0tLSBh L21tL21tdV9ub3RpZmllci5jCj4gPiArKysgYi9tbS9tbXVfbm90aWZpZXIuYwo+ID4gQEAgLTE4 NSw3ICsxODUsMTMgQEAgaW50IF9fbW11X25vdGlmaWVyX2ludmFsaWRhdGVfcmFuZ2Vfc3RhcnQo c3RydWN0IG1tX3N0cnVjdCAqbW0sCj4gPiAgIAlpZCA9IHNyY3VfcmVhZF9sb2NrKCZzcmN1KTsK PiA+ICAgCWhsaXN0X2Zvcl9lYWNoX2VudHJ5X3JjdShtbiwgJm1tLT5tbXVfbm90aWZpZXJfbW0t Pmxpc3QsIGhsaXN0KSB7Cj4gPiAgIAkJaWYgKG1uLT5vcHMtPmludmFsaWRhdGVfcmFuZ2Vfc3Rh cnQpIHsKPiA+IC0JCQlpbnQgX3JldCA9IG1uLT5vcHMtPmludmFsaWRhdGVfcmFuZ2Vfc3RhcnQo bW4sIG1tLCBzdGFydCwgZW5kLCBibG9ja2FibGUpOwo+ID4gKwkJCWludCBfcmV0Owo+ID4gKwo+ ID4gKwkJCWlmIChJU19FTkFCTEVEKENPTkZJR19ERUJVR19BVE9NSUNfU0xFRVApICYmICFibG9j a2FibGUpCj4gPiArCQkJCXByZWVtcHRfZGlzYWJsZSgpOwo+ID4gKwkJCV9yZXQgPSBtbi0+b3Bz LT5pbnZhbGlkYXRlX3JhbmdlX3N0YXJ0KG1uLCBtbSwgc3RhcnQsIGVuZCwgYmxvY2thYmxlKTsK PiA+ICsJCQlpZiAoSVNfRU5BQkxFRChDT05GSUdfREVCVUdfQVRPTUlDX1NMRUVQKSAmJiAhYmxv Y2thYmxlKQo+ID4gKwkJCQlwcmVlbXB0X2VuYWJsZSgpOwo+IAo+IEp1c3QgZm9yIHRoZSBzYWtl IG9mIGJldHRlciBkb2N1bWVudGluZyB0aGlzIGhvdyBhYm91dCBhZGRpbmcgdGhpcyB0byAKPiBp bmNsdWRlL2xpbnV4L2tlcm5lbC5oIHJpZ2h0IG5leHQgdG8gbWlnaHRfc2xlZXAoKToKPiAKPiAj ZGVmaW5lIGRpc2FsbG93X3NsZWVwaW5nX2lmKGNvbmQpwqDCoMKgIGZvcigoY29uZCkgPyBwcmVl bXB0X2Rpc2FibGUoKSA6IAo+ICh2b2lkKTA7IChjb25kKTsgcHJlZW1wdF9kaXNhYmxlKCkpCj4g Cj4gKEp1c3QgZnJvbSB0aGUgYmFjayBvZiBteSBoZWFkLCBtaWdodCBjb250YWluIHBlYW51dHMg YW5kL29yIGhpbnRzIG9mIAo+IGVycm9ycykuCgpJIHRoaW5rIHRoZXNlIG1hZ2ljIGZvciBibG9j a3MgYXJlbid0IHVzZWQgaW4gdGhlIGtlcm5lbC4gZ290byBicmVha3MKdGhlbSwgYW5kIHdlIHVz ZSBnb3RvIGEgbG90LiBJIHRoaW5rIGEgZGlzYWxsb3cvYWxsb3dfc2xlZXAoKSBwYWlyIHdpdGgK dGhlIGNvbmRpdGlvbmFsIHByZWVwdF9kaXNhYmxlL2VuYWJsZSgpIGNhbGxzIHdvdWxkIGJlIG5p Y2UgdGhvdWdoLiBJIGNhbgpkbyB0aGF0IGlmIHRoZSBvdmVyYWxsIGlkZWEgc3RpY2tzLgotRGFu aWVsCgo+IAo+IENocmlzdGlhbi4KPiAKPiA+ICAgCQkJaWYgKF9yZXQpIHsKPiA+ICAgCQkJCXBy X2luZm8oIiVwUyBjYWxsYmFjayBmYWlsZWQgd2l0aCAlZCBpbiAlc2Jsb2NrYWJsZSBjb250ZXh0 LlxuIiwKPiA+ICAgCQkJCQkJbW4tPm9wcy0+aW52YWxpZGF0ZV9yYW5nZV9zdGFydCwgX3JldCwK PiAKCi0tIApEYW5pZWwgVmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlv bgpodHRwOi8vYmxvZy5mZndsbC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9kcmktZGV2ZWwK