From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH] drm/i915: Protect i915_active iterators from the shrinker Date: Mon, 11 Feb 2019 11:13:12 +0000 Message-ID: <86b7d1e0-8d6d-f9a2-a3d2-bb9014785af0@linux.intel.com> References: <20190208134704.23039-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8DC7C6E17F for ; Mon, 11 Feb 2019 11:13:03 +0000 (UTC) In-Reply-To: <20190208134704.23039-1-chris@chris-wilson.co.uk> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Ck9uIDA4LzAyLzIwMTkgMTM6NDcsIENocmlzIFdpbHNvbiB3cm90ZToKPiBJZiB3ZSBhbGxvY2F0 ZSB3aGlsZSBpdGVyYXRpbmcgdGhlIHJidHJlZSBvZiBhY3RpdmUgbm9kZXMsIHdlIG1heSBoaXQK PiB0aGUgc2hyaW5rZXIgYW5kIHNvIHJldGlyZSB0aGUgaTkxNV9hY3RpdmUgcmVhcCB0aGUgcmJ0 cmVlLiBNb2RpZnlpbmcKPiB0aGUgcmJ0cmVlIGFzIHdlIGl0ZXJhdGUgaXMgbm90IGdvb2QgYmVo YXZpb3VyLCBzbyBhY3F1aXJlIHRoZQo+IGk5MTVfYWN0aXZlIGZpcnN0IHRvIGtlZXAgdGhlIHRy ZWUgaW50YWN0IHdoZW5ldmVyIHdlIGFsbG9jYXRlLgo+IAo+IEZpeGVzOiBhNDIzNzVhZjBhMzAg KCJkcm0vaTkxNTogUmVsZWFzZSB0aGUgYWN0aXZlIHRyYWNrZXIgdHJlZSB1cG9uIGlkbGluZyIp Cj4gU2lnbmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+ Cj4gQ2M6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+Cj4gQ2M6IEpv b25hcyBMYWh0aW5lbiA8am9vbmFzLmxhaHRpbmVuQGxpbnV4LmludGVsLmNvbT4KPiAtLS0KPiAg IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfYWN0aXZlLmMgfCAzNiArKysrKysrKysrKysrKysr KysrKystLS0tLS0tLS0KPiAgIDEgZmlsZSBjaGFuZ2VkLCAyNSBpbnNlcnRpb25zKCspLCAxMSBk ZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9h Y3RpdmUuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfYWN0aXZlLmMKPiBpbmRleCAyMTVi NmZmOGFhNzMuLmRiN2JiNWJkNWFkZCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkx NS9pOTE1X2FjdGl2ZS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9hY3RpdmUu Ywo+IEBAIC0xNjMsMTcgKzE2MywyNSBAQCBpbnQgaTkxNV9hY3RpdmVfcmVmKHN0cnVjdCBpOTE1 X2FjdGl2ZSAqcmVmLAo+ICAgCQkgICAgc3RydWN0IGk5MTVfcmVxdWVzdCAqcnEpCj4gICB7Cj4g ICAJc3RydWN0IGk5MTVfYWN0aXZlX3JlcXVlc3QgKmFjdGl2ZTsKPiArCWludCBlcnIgPSAwOwo+ ICsKPiArCS8qIFByZXZlbnQgcmVhcGluZyBpbiBjYXNlIHdlIG1hbGxvYy93YWl0IHdoaWxlIGJ1 aWxkaW5nIHRoZSB0cmVlICovCj4gKwlpOTE1X2FjdGl2ZV9hY3F1aXJlKHJlZik7Cj4gICAKPiAg IAlhY3RpdmUgPSBhY3RpdmVfaW5zdGFuY2UocmVmLCB0aW1lbGluZSk7Cj4gLQlpZiAoSVNfRVJS KGFjdGl2ZSkpCj4gLQkJcmV0dXJuIFBUUl9FUlIoYWN0aXZlKTsKPiArCWlmIChJU19FUlIoYWN0 aXZlKSkgewo+ICsJCWVyciA9IFBUUl9FUlIoYWN0aXZlKTsKPiArCQlnb3RvIG91dDsKPiArCX0K PiAgIAo+ICAgCWlmICghaTkxNV9hY3RpdmVfcmVxdWVzdF9pc3NldChhY3RpdmUpKQo+ICAgCQly ZWYtPmNvdW50Kys7Cj4gICAJX19pOTE1X2FjdGl2ZV9yZXF1ZXN0X3NldChhY3RpdmUsIHJxKTsK PiAgIAo+ICAgCUdFTV9CVUdfT04oIXJlZi0+Y291bnQpOwo+IC0JcmV0dXJuIDA7Cj4gK291dDoK PiArCWk5MTVfYWN0aXZlX3JlbGVhc2UocmVmKTsKPiArCXJldHVybiBlcnI7Cj4gICB9Cj4gICAK PiAgIGJvb2wgaTkxNV9hY3RpdmVfYWNxdWlyZShzdHJ1Y3QgaTkxNV9hY3RpdmUgKnJlZikKPiBA QCAtMjIzLDE5ICsyMzEsMjUgQEAgaW50IGk5MTVfcmVxdWVzdF9hd2FpdF9hY3RpdmVfcmVxdWVz dChzdHJ1Y3QgaTkxNV9yZXF1ZXN0ICpycSwKPiAgIGludCBpOTE1X3JlcXVlc3RfYXdhaXRfYWN0 aXZlKHN0cnVjdCBpOTE1X3JlcXVlc3QgKnJxLCBzdHJ1Y3QgaTkxNV9hY3RpdmUgKnJlZikKPiAg IHsKPiAgIAlzdHJ1Y3QgYWN0aXZlX25vZGUgKml0LCAqbjsKPiAtCWludCByZXQ7Cj4gKwlpbnQg ZXJyID0gMDsKPiAgIAo+IC0JcmV0ID0gaTkxNV9yZXF1ZXN0X2F3YWl0X2FjdGl2ZV9yZXF1ZXN0 KHJxLCAmcmVmLT5sYXN0KTsKPiAtCWlmIChyZXQpCj4gLQkJcmV0dXJuIHJldDsKPiArCS8qIGF3 YWl0IGFsbG9jYXRlcyBhbmQgc28gd2UgbmVlZCB0byBhdm9pZCBoaXR0aW5nIHRoZSBzaHJpbmtl ciAqLwo+ICsJaWYgKGk5MTVfYWN0aXZlX2FjcXVpcmUocmVmKSkKPiArCQlnb3RvIG91dDsgLyog d2FzIGlkbGUgKi8KPiArCj4gKwllcnIgPSBpOTE1X3JlcXVlc3RfYXdhaXRfYWN0aXZlX3JlcXVl c3QocnEsICZyZWYtPmxhc3QpOwo+ICsJaWYgKGVycikKPiArCQlnb3RvIG91dDsKPiAgIAo+ICAg CXJidHJlZV9wb3N0b3JkZXJfZm9yX2VhY2hfZW50cnlfc2FmZShpdCwgbiwgJnJlZi0+dHJlZSwg bm9kZSkgewo+IC0JCXJldCA9IGk5MTVfcmVxdWVzdF9hd2FpdF9hY3RpdmVfcmVxdWVzdChycSwg Jml0LT5iYXNlKTsKPiAtCQlpZiAocmV0KQo+IC0JCQlyZXR1cm4gcmV0Owo+ICsJCWVyciA9IGk5 MTVfcmVxdWVzdF9hd2FpdF9hY3RpdmVfcmVxdWVzdChycSwgJml0LT5iYXNlKTsKPiArCQlpZiAo ZXJyKQo+ICsJCQlnb3RvIG91dDsKPiAgIAl9Cj4gICAKPiAtCXJldHVybiAwOwo+ICtvdXQ6Cj4g KwlpOTE1X2FjdGl2ZV9yZWxlYXNlKHJlZik7Cj4gKwlyZXR1cm4gZXJyOwo+ICAgfQo+ICAgCj4g ICAjaWYgSVNfRU5BQkxFRChDT05GSUdfRFJNX0k5MTVfREVCVUdfR0VNKQo+IAoKUmV2aWV3ZWQt Ynk6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+CgpSZWdhcmRzLAoK VHZydGtvCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCklu dGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw czovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=