From mboxrd@z Thu Jan 1 00:00:00 1970 From: jglisse@redhat.com Subject: [PATCH] dma-buf: fix debugfs versus rcu and fence dumping v2 Date: Thu, 6 Dec 2018 10:47:04 -0500 Message-ID: <20181206154704.5366-1-jglisse@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2BE456E602 for ; Thu, 6 Dec 2018 15:47:14 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: linux-kernel@vger.kernel.org Cc: Daniel Vetter , dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , stable@vger.kernel.org, =?UTF-8?q?St=C3=A9phane=20Marchesin?= , =?UTF-8?q?Christian=20K=C3=B6nig?= , linux-media@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org RnJvbTogSsOpcsO0bWUgR2xpc3NlIDxqZ2xpc3NlQHJlZGhhdC5jb20+CgpUaGUgZGVidWdmcyB0 YWtlIHJlZmVyZW5jZSBvbiBmZW5jZSB3aXRob3V0IGRyb3BwaW5nIHRoZW0uIEFsc28gdGhlCnJj dSBzZWN0aW9uIGFyZSBub3Qgd2VsbCBiYWxhbmNlLiBGaXggYWxsIHRoYXQgLi4uCgpDaGFuZ2Vk IHNpbmNlIHYxOgogICAgLSBtb3ZlZCBmb2JqIGxvZ2ljIGFyb3VuZCB0byBiZSByY3Ugc2FmZQoK U2lnbmVkLW9mZi1ieTogSsOpcsO0bWUgR2xpc3NlIDxqZ2xpc3NlQHJlZGhhdC5jb20+CkNjOiBD aHJpc3RpYW4gS8O2bmlnIDxjaHJpc3RpYW4ua29lbmlnQGFtZC5jb20+CkNjOiBEYW5pZWwgVmV0 dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgpDYzogU3VtaXQgU2Vtd2FsIDxzdW1pdC5zZW13 YWxAbGluYXJvLm9yZz4KQ2M6IGxpbnV4LW1lZGlhQHZnZXIua2VybmVsLm9yZwpDYzogZHJpLWRl dmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpDYzogbGluYXJvLW1tLXNpZ0BsaXN0cy5saW5hcm8u b3JnCkNjOiBTdMOpcGhhbmUgTWFyY2hlc2luIDxtYXJjaGV1QGNocm9taXVtLm9yZz4KQ2M6IHN0 YWJsZUB2Z2VyLmtlcm5lbC5vcmcKLS0tCiBkcml2ZXJzL2RtYS1idWYvZG1hLWJ1Zi5jIHwgMjEg KysrKysrKysrKysrKysrKy0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMTYgaW5zZXJ0aW9ucygrKSwg NSBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS1idWYvZG1hLWJ1Zi5jIGIv ZHJpdmVycy9kbWEtYnVmL2RtYS1idWYuYwppbmRleCAxMzg4NDQ3NGQxNTguLjk2ODhkOTk4OTRk NiAxMDA2NDQKLS0tIGEvZHJpdmVycy9kbWEtYnVmL2RtYS1idWYuYworKysgYi9kcml2ZXJzL2Rt YS1idWYvZG1hLWJ1Zi5jCkBAIC0xMDQ4LDI3ICsxMDQ4LDM4IEBAIHN0YXRpYyBpbnQgZG1hX2J1 Zl9kZWJ1Z19zaG93KHN0cnVjdCBzZXFfZmlsZSAqcywgdm9pZCAqdW51c2VkKQogCQl3aGlsZSAo dHJ1ZSkgewogCQkJc2VxID0gcmVhZF9zZXFjb3VudF9iZWdpbigmcm9iai0+c2VxKTsKIAkJCXJj dV9yZWFkX2xvY2soKTsKLQkJCWZvYmogPSByY3VfZGVyZWZlcmVuY2Uocm9iai0+ZmVuY2UpOwot CQkJc2hhcmVkX2NvdW50ID0gZm9iaiA/IGZvYmotPnNoYXJlZF9jb3VudCA6IDA7CiAJCQlmZW5j ZSA9IHJjdV9kZXJlZmVyZW5jZShyb2JqLT5mZW5jZV9leGNsKTsKKwkJCWZlbmNlID0gZG1hX2Zl bmNlX2dldF9yY3UoZmVuY2UpOwogCQkJaWYgKCFyZWFkX3NlcWNvdW50X3JldHJ5KCZyb2JqLT5z ZXEsIHNlcSkpCiAJCQkJYnJlYWs7CiAJCQlyY3VfcmVhZF91bmxvY2soKTsKIAkJfQotCi0JCWlm IChmZW5jZSkKKwkJaWYgKGZlbmNlKSB7CiAJCQlzZXFfcHJpbnRmKHMsICJcdEV4Y2x1c2l2ZSBm ZW5jZTogJXMgJXMgJXNzaWduYWxsZWRcbiIsCiAJCQkJICAgZmVuY2UtPm9wcy0+Z2V0X2RyaXZl cl9uYW1lKGZlbmNlKSwKIAkJCQkgICBmZW5jZS0+b3BzLT5nZXRfdGltZWxpbmVfbmFtZShmZW5j ZSksCiAJCQkJICAgZG1hX2ZlbmNlX2lzX3NpZ25hbGVkKGZlbmNlKSA/ICIiIDogInVuIik7Ci0J CWZvciAoaSA9IDA7IGkgPCBzaGFyZWRfY291bnQ7IGkrKykgeworCQkJZG1hX2ZlbmNlX3B1dChm ZW5jZSk7CisJCX0KKworCQlyY3VfcmVhZF9sb2NrKCk7CisJCWZvYmogPSByY3VfZGVyZWZlcmVu Y2Uocm9iai0+ZmVuY2UpOworCQlzaGFyZWRfY291bnQgPSBmb2JqID8gZm9iai0+c2hhcmVkX2Nv dW50IDogMDsKKwkJZm9yIChpID0gMCwgZmVuY2UgPSBOVUxMOyBpIDwgc2hhcmVkX2NvdW50OyBp KyspIHsKIAkJCWZlbmNlID0gcmN1X2RlcmVmZXJlbmNlKGZvYmotPnNoYXJlZFtpXSk7CiAJCQlp ZiAoIWRtYV9mZW5jZV9nZXRfcmN1KGZlbmNlKSkKIAkJCQljb250aW51ZTsKKwkJCXJjdV9yZWFk X3VubG9jaygpOworCiAJCQlzZXFfcHJpbnRmKHMsICJcdFNoYXJlZCBmZW5jZTogJXMgJXMgJXNz aWduYWxsZWRcbiIsCiAJCQkJICAgZmVuY2UtPm9wcy0+Z2V0X2RyaXZlcl9uYW1lKGZlbmNlKSwK IAkJCQkgICBmZW5jZS0+b3BzLT5nZXRfdGltZWxpbmVfbmFtZShmZW5jZSksCiAJCQkJICAgZG1h X2ZlbmNlX2lzX3NpZ25hbGVkKGZlbmNlKSA/ICIiIDogInVuIik7CisJCQlkbWFfZmVuY2VfcHV0 KGZlbmNlKTsKKworCQkJcmN1X3JlYWRfbG9jaygpOworCQkJZm9iaiA9IHJjdV9kZXJlZmVyZW5j ZShyb2JqLT5mZW5jZSk7CisJCQlzaGFyZWRfY291bnQgPSBmb2JqID8gZm9iai0+c2hhcmVkX2Nv dW50IDogMDsKIAkJfQogCQlyY3VfcmVhZF91bmxvY2soKTsKIAotLSAKMi4xNy4yCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGlu ZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVl ZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK