From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: [PATCH 3/5] drm/i915: Fix struct mutex vs. RPS lock inversion Date: Thu, 11 Feb 2016 10:27:30 +0000 Message-ID: <1455186452-13691-4-git-send-email-tvrtko.ursulin@linux.intel.com> References: <1455186452-13691-1-git-send-email-tvrtko.ursulin@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 5437B8A10B for ; Thu, 11 Feb 2016 02:27:43 -0800 (PST) In-Reply-To: <1455186452-13691-1-git-send-email-tvrtko.ursulin@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Intel-gfx@lists.freedesktop.org Cc: Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org RnJvbTogVHZydGtvIFVyc3VsaW4gPHR2cnRrby51cnN1bGluQGludGVsLmNvbT4KClJQUyBsb2Nr IG11c3QgYmUgdGFrZW4gYmVmb3JlIHRoZSBzdHJ1Y3RfbXV0ZXggdG8gYXZvaWQKbG9ja2luZyBp bnZlcnNpb24uIFNvIHN0b3AgZ3JhYmJpbmcgaXQgZm9yIHRoZSB3aG9sZQpwb3dlcnNhdmUgaW5p dGlhbGl6YXRpb24gYW5kIGluc3RlYWQgb25seSB0YWtlIGl0IGR1cmluZwp0aGUgc2VjdGlvbnMg d2hpY2ggbmVlZCBpdC4KCkFsc28sIHN0cnVjdF9tdXRleCBpcyBub3QgbmVlZGVkIGFueSBtb3Jl IHNpbmNlIGRlZGljYXRlZApSUFMgbG9jayB3YXMgYWRkZWQgaW46CgogICBjb21taXQgNGZjNjg4 Y2U3OTc3MjQ5NjUwM2QyMjI2M2Q2MWIwNzFhOGZiNTk2ZQogICBBdXRob3I6IEplc3NlIEJhcm5l cyA8amJhcm5lc0B2aXJ0dW91c2dlZWsub3JnPgogICBEYXRlOiAgIEZyaSBOb3YgMiAxMToxNDow MSAyMDEyIC0wNzAwCgogICAgICAgZHJtL2k5MTU6IHByb3RlY3QgUlBTL1JDNiByZWxhdGVkIGFj Y2Vzc2VzIChpbmNsdWRpbmcgUENVKSB3aXRoIGEgbmV3IG11dGV4CgpCYXNlZCBvbiBwcm90b3R5 cGUgcGF0Y2ggYnkgQ2hyaXMgV2lsc29uIGFuZCBhIHN1YnNlcXVlbnQKbWFpbGluZyBsaXN0IGRp c2N1c3Npb24gaW52b2x2aW5nIFZpbGxlLCBJbXJlLCBDaHJpcyBhbmQKRGFuaWVsLgoKdjI6IE1v cmUgZGV0YWlscyBpbiB0aGUgY29tbWl0LgoKdjM6IFVzZSBkcm1fZ2VtX29iamVjdF91bnJlZmVy ZW5jZV91bmxvY2tlZC4gKENocmlzIFdpbHNvbikKClNpZ25lZC1vZmYtYnk6IFR2cnRrbyBVcnN1 bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+CkNjOiBDaHJpcyBXaWxzb24gPGNocmlzQGNo cmlzLXdpbHNvbi5jby51az4KQ2M6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51 eC5pbnRlbC5jb20+CkNjOiBJbXJlIERlYWsgPGltcmUuZGVha0BpbnRlbC5jb20+CkNjOiBEYW5p ZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgpSZXZpZXdlZC1ieTogQ2hyaXMgV2ls c29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfZGlzcGxheS5jIHwgNCAtLS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5j ICAgICAgfCA5ICsrKystLS0tLQogMiBmaWxlcyBjaGFuZ2VkLCA0IGluc2VydGlvbnMoKyksIDkg ZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlz cGxheS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCmluZGV4IDU3ZTQ2 NWVkMDg4Yi4uYTBmM2UzOTlhMmQ5IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9kaXNwbGF5LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5j CkBAIC0xNTk3Niw5ICsxNTk3Niw3IEBAIHZvaWQgaW50ZWxfbW9kZXNldF9nZW1faW5pdChzdHJ1 Y3QgZHJtX2RldmljZSAqZGV2KQogCXN0cnVjdCBkcm1faTkxNV9nZW1fb2JqZWN0ICpvYmo7CiAJ aW50IHJldDsKIAotCW11dGV4X2xvY2soJmRldi0+c3RydWN0X211dGV4KTsKIAlpbnRlbF9pbml0 X2d0X3Bvd2Vyc2F2ZShkZXYpOwotCW11dGV4X3VubG9jaygmZGV2LT5zdHJ1Y3RfbXV0ZXgpOwog CiAJaW50ZWxfbW9kZXNldF9pbml0X2h3KGRldik7CiAKQEAgLTE2MDU4LDkgKzE2MDU2LDcgQEAg dm9pZCBpbnRlbF9tb2Rlc2V0X2NsZWFudXAoc3RydWN0IGRybV9kZXZpY2UgKmRldikKIAogCWlu dGVsX2NsZWFudXBfb3ZlcmxheShkZXYpOwogCi0JbXV0ZXhfbG9jaygmZGV2LT5zdHJ1Y3RfbXV0 ZXgpOwogCWludGVsX2NsZWFudXBfZ3RfcG93ZXJzYXZlKGRldik7Ci0JbXV0ZXhfdW5sb2NrKCZk ZXYtPnN0cnVjdF9tdXRleCk7CiAKIAlpbnRlbF90ZWFyZG93bl9nbWJ1cyhkZXYpOwogfQpkaWZm IC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX3BtLmMKaW5kZXggMzc5ZWFiZTA5M2NiLi44ZTg2OWYxODM0MDQgMTAwNjQ0 Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKKysrIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfcG0uYwpAQCAtNTIyOSw4ICs1MjI5LDYgQEAgc3RhdGljIHZvaWQgY2hl cnJ5dmlld19zZXR1cF9wY3R4KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCiAJdTMyIHBjYnI7CiAJ aW50IHBjdHhfc2l6ZSA9IDMyKjEwMjQ7CiAKLQlXQVJOX09OKCFtdXRleF9pc19sb2NrZWQoJmRl di0+c3RydWN0X211dGV4KSk7Ci0KIAlwY2JyID0gSTkxNV9SRUFEKFZMVl9QQ0JSKTsKIAlpZiAo KHBjYnIgPj4gVkxWX1BDQlJfQUREUl9TSElGVCkgPT0gMCkgewogCQlEUk1fREVCVUdfRFJJVkVS KCJCSU9TIGRpZG4ndCBzZXQgdXAgUENCUiwgZml4aW5nIHVwXG4iKTsKQEAgLTUyNTIsNyArNTI1 MCw3IEBAIHN0YXRpYyB2b2lkIHZhbGxleXZpZXdfc2V0dXBfcGN0eChzdHJ1Y3QgZHJtX2Rldmlj ZSAqZGV2KQogCXUzMiBwY2JyOwogCWludCBwY3R4X3NpemUgPSAyNCoxMDI0OwogCi0JV0FSTl9P TighbXV0ZXhfaXNfbG9ja2VkKCZkZXYtPnN0cnVjdF9tdXRleCkpOworCW11dGV4X2xvY2soJmRl di0+c3RydWN0X211dGV4KTsKIAogCXBjYnIgPSBJOTE1X1JFQUQoVkxWX1BDQlIpOwogCWlmIChw Y2JyKSB7CkBAIC01MjgwLDcgKzUyNzgsNyBAQCBzdGF0aWMgdm9pZCB2YWxsZXl2aWV3X3NldHVw X3BjdHgoc3RydWN0IGRybV9kZXZpY2UgKmRldikKIAlwY3R4ID0gaTkxNV9nZW1fb2JqZWN0X2Ny ZWF0ZV9zdG9sZW4oZGV2LCBwY3R4X3NpemUpOwogCWlmICghcGN0eCkgewogCQlEUk1fREVCVUco Im5vdCBlbm91Z2ggc3RvbGVuIHNwYWNlIGZvciBQQ1RYLCBkaXNhYmxpbmdcbiIpOwotCQlyZXR1 cm47CisJCWdvdG8gb3V0OwogCX0KIAogCXBjdHhfcGFkZHIgPSBkZXZfcHJpdi0+bW0uc3RvbGVu X2Jhc2UgKyBwY3R4LT5zdG9sZW4tPnN0YXJ0OwpAQCAtNTI4OSw2ICs1Mjg3LDcgQEAgc3RhdGlj IHZvaWQgdmFsbGV5dmlld19zZXR1cF9wY3R4KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCiBvdXQ6 CiAJRFJNX0RFQlVHX0RSSVZFUigiUENCUjogMHglMDh4XG4iLCBJOTE1X1JFQUQoVkxWX1BDQlIp KTsKIAlkZXZfcHJpdi0+dmx2X3BjdHggPSBwY3R4OworCW11dGV4X3VubG9jaygmZGV2LT5zdHJ1 Y3RfbXV0ZXgpOwogfQogCiBzdGF0aWMgdm9pZCB2YWxsZXl2aWV3X2NsZWFudXBfcGN0eChzdHJ1 Y3QgZHJtX2RldmljZSAqZGV2KQpAQCAtNTI5OCw3ICs1Mjk3LDcgQEAgc3RhdGljIHZvaWQgdmFs bGV5dmlld19jbGVhbnVwX3BjdHgoc3RydWN0IGRybV9kZXZpY2UgKmRldikKIAlpZiAoV0FSTl9P TighZGV2X3ByaXYtPnZsdl9wY3R4KSkKIAkJcmV0dXJuOwogCi0JZHJtX2dlbV9vYmplY3RfdW5y ZWZlcmVuY2UoJmRldl9wcml2LT52bHZfcGN0eC0+YmFzZSk7CisJZHJtX2dlbV9vYmplY3RfdW5y ZWZlcmVuY2VfdW5sb2NrZWQoJmRldl9wcml2LT52bHZfcGN0eC0+YmFzZSk7CiAJZGV2X3ByaXYt PnZsdl9wY3R4ID0gTlVMTDsKIH0KIAotLSAKMS45LjEKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4 QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=