From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Hubbard Subject: [PATCH 16/19] vfio, mm: pin_user_pages (FOLL_PIN) and put_user_page() conversion Date: Sun, 24 Nov 2019 20:20:08 -0800 Message-ID: <20191125042011.3002372-17-jhubbard@nvidia.com> References: <20191125042011.3002372-1-jhubbard@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from hqemgate14.nvidia.com (hqemgate14.nvidia.com [216.228.121.143]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9A5FE89DED for ; Mon, 25 Nov 2019 04:20:15 +0000 (UTC) In-Reply-To: <20191125042011.3002372-1-jhubbard@nvidia.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Andrew Morton Cc: Michal Hocko , Jan Kara , kvm@vger.kernel.org, linux-doc@vger.kernel.org, David Airlie , Dave Chinner , dri-devel@lists.freedesktop.org, LKML , linux-mm@kvack.org, Paul Mackerras , linux-kselftest@vger.kernel.org, Ira Weiny , Jonathan Corbet , linux-rdma@vger.kernel.org, Michael Ellerman , Christoph Hellwig , Jason Gunthorpe , Vlastimil Babka , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , linux-media@vger.kernel.org, Shuah Khan , John Hubbard , linux-block@vger.kernel.org, =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Al Viro , Dan Williams List-Id: dri-devel@lists.freedesktop.org MS4gQ2hhbmdlIHZmaW8gZnJvbSBnZXRfdXNlcl9wYWdlc19yZW1vdGUoKSwgdG8KcGluX3VzZXJf cGFnZXNfcmVtb3RlKCkuCgoyLiBCZWNhdXNlIGFsbCBGT0xMX1BJTi1hY3F1aXJlZCBwYWdlcyBt dXN0IGJlIHJlbGVhc2VkIHZpYQpwdXRfdXNlcl9wYWdlKCksIGFsc28gY29udmVydCB0aGUgcHV0 X3BhZ2UoKSBjYWxsIG92ZXIgdG8KcHV0X3VzZXJfcGFnZXNfZGlydHlfbG9jaygpLgoKTm90ZSB0 aGF0IHRoaXMgZWZmZWN0aXZlbHkgY2hhbmdlcyB0aGUgY29kZSdzIGJlaGF2aW9yIGluCnZmaW9f aW9tbXVfdHlwZTEuYzogcHV0X3BmbigpOiBpdCBub3cgdWx0aW1hdGVseSBjYWxscwpzZXRfcGFn ZV9kaXJ0eV9sb2NrKCksIGluc3RlYWQgb2Ygc2V0X3BhZ2VfZGlydHkoKS4gVGhpcyBpcwpwcm9i YWJseSBtb3JlIGFjY3VyYXRlLgoKQXMgQ2hyaXN0b3BoIEhlbGx3aWcgcHV0IGl0LCAic2V0X3Bh Z2VfZGlydHkoKSBpcyBvbmx5IHNhZmUgaWYgd2UgYXJlCmRlYWxpbmcgd2l0aCBhIGZpbGUgYmFj a2VkIHBhZ2Ugd2hlcmUgd2UgaGF2ZSByZWZlcmVuY2Ugb24gdGhlIGlub2RlIGl0CmhhbmdzIG9m Zi4iIFsxXQoKWzFdIGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL3IvMjAxOTA3MjMxNTM2NDAuR0I3 MjBAbHN0LmRlCgpUZXN0ZWQtYnk6IEFsZXggV2lsbGlhbXNvbiA8YWxleC53aWxsaWFtc29uQHJl ZGhhdC5jb20+CkFja2VkLWJ5OiBBbGV4IFdpbGxpYW1zb24gPGFsZXgud2lsbGlhbXNvbkByZWRo YXQuY29tPgpTaWduZWQtb2ZmLWJ5OiBKb2huIEh1YmJhcmQgPGpodWJiYXJkQG52aWRpYS5jb20+ Ci0tLQogZHJpdmVycy92ZmlvL3ZmaW9faW9tbXVfdHlwZTEuYyB8IDcgKysrLS0tLQogMSBmaWxl IGNoYW5nZWQsIDMgaW5zZXJ0aW9ucygrKSwgNCBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9k cml2ZXJzL3ZmaW8vdmZpb19pb21tdV90eXBlMS5jIGIvZHJpdmVycy92ZmlvL3ZmaW9faW9tbXVf dHlwZTEuYwppbmRleCBiODAwZmM5YTAyNTEuLjE4YmZjMmZjOGU2ZCAxMDA2NDQKLS0tIGEvZHJp dmVycy92ZmlvL3ZmaW9faW9tbXVfdHlwZTEuYworKysgYi9kcml2ZXJzL3ZmaW8vdmZpb19pb21t dV90eXBlMS5jCkBAIC0zMDksOSArMzA5LDggQEAgc3RhdGljIGludCBwdXRfcGZuKHVuc2lnbmVk IGxvbmcgcGZuLCBpbnQgcHJvdCkKIHsKIAlpZiAoIWlzX2ludmFsaWRfcmVzZXJ2ZWRfcGZuKHBm bikpIHsKIAkJc3RydWN0IHBhZ2UgKnBhZ2UgPSBwZm5fdG9fcGFnZShwZm4pOwotCQlpZiAocHJv dCAmIElPTU1VX1dSSVRFKQotCQkJU2V0UGFnZURpcnR5KHBhZ2UpOwotCQlwdXRfcGFnZShwYWdl KTsKKworCQlwdXRfdXNlcl9wYWdlc19kaXJ0eV9sb2NrKCZwYWdlLCAxLCBwcm90ICYgSU9NTVVf V1JJVEUpOwogCQlyZXR1cm4gMTsKIAl9CiAJcmV0dXJuIDA7CkBAIC0zMjksNyArMzI4LDcgQEAg c3RhdGljIGludCB2YWRkcl9nZXRfcGZuKHN0cnVjdCBtbV9zdHJ1Y3QgKm1tLCB1bnNpZ25lZCBs b25nIHZhZGRyLAogCQlmbGFncyB8PSBGT0xMX1dSSVRFOwogCiAJZG93bl9yZWFkKCZtbS0+bW1h cF9zZW0pOwotCXJldCA9IGdldF91c2VyX3BhZ2VzX3JlbW90ZShOVUxMLCBtbSwgdmFkZHIsIDEs IGZsYWdzIHwgRk9MTF9MT05HVEVSTSwKKwlyZXQgPSBwaW5fdXNlcl9wYWdlc19yZW1vdGUoTlVM TCwgbW0sIHZhZGRyLCAxLCBmbGFncyB8IEZPTExfTE9OR1RFUk0sCiAJCQkJICAgIHBhZ2UsIE5V TEwsIE5VTEwpOwogCWlmIChyZXQgPT0gMSkgewogCQkqcGZuID0gcGFnZV90b19wZm4ocGFnZVsw XSk7Ci0tIAoyLjI0LjAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9w Lm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1k ZXZlbA== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B45EC33CA3 for ; 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Miller" , Mike Kravetz Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Message-ID: <20191125042008.DvO7wtW-DmjIeF0pbPJng98-XwF6gqlxiJ3j8mntepA@z> MS4gQ2hhbmdlIHZmaW8gZnJvbSBnZXRfdXNlcl9wYWdlc19yZW1vdGUoKSwgdG8KcGluX3VzZXJf cGFnZXNfcmVtb3RlKCkuCgoyLiBCZWNhdXNlIGFsbCBGT0xMX1BJTi1hY3F1aXJlZCBwYWdlcyBt dXN0IGJlIHJlbGVhc2VkIHZpYQpwdXRfdXNlcl9wYWdlKCksIGFsc28gY29udmVydCB0aGUgcHV0 X3BhZ2UoKSBjYWxsIG92ZXIgdG8KcHV0X3VzZXJfcGFnZXNfZGlydHlfbG9jaygpLgoKTm90ZSB0 aGF0IHRoaXMgZWZmZWN0aXZlbHkgY2hhbmdlcyB0aGUgY29kZSdzIGJlaGF2aW9yIGluCnZmaW9f aW9tbXVfdHlwZTEuYzogcHV0X3BmbigpOiBpdCBub3cgdWx0aW1hdGVseSBjYWxscwpzZXRfcGFn ZV9kaXJ0eV9sb2NrKCksIGluc3RlYWQgb2Ygc2V0X3BhZ2VfZGlydHkoKS4gVGhpcyBpcwpwcm9i YWJseSBtb3JlIGFjY3VyYXRlLgoKQXMgQ2hyaXN0b3BoIEhlbGx3aWcgcHV0IGl0LCAic2V0X3Bh Z2VfZGlydHkoKSBpcyBvbmx5IHNhZmUgaWYgd2UgYXJlCmRlYWxpbmcgd2l0aCBhIGZpbGUgYmFj a2VkIHBhZ2Ugd2hlcmUgd2UgaGF2ZSByZWZlcmVuY2Ugb24gdGhlIGlub2RlIGl0CmhhbmdzIG9m Zi4iIFsxXQoKWzFdIGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL3IvMjAxOTA3MjMxNTM2NDAuR0I3 MjBAbHN0LmRlCgpUZXN0ZWQtYnk6IEFsZXggV2lsbGlhbXNvbiA8YWxleC53aWxsaWFtc29uQHJl ZGhhdC5jb20+CkFja2VkLWJ5OiBBbGV4IFdpbGxpYW1zb24gPGFsZXgud2lsbGlhbXNvbkByZWRo YXQuY29tPgpTaWduZWQtb2ZmLWJ5OiBKb2huIEh1YmJhcmQgPGpodWJiYXJkQG52aWRpYS5jb20+ Ci0tLQogZHJpdmVycy92ZmlvL3ZmaW9faW9tbXVfdHlwZTEuYyB8IDcgKysrLS0tLQogMSBmaWxl IGNoYW5nZWQsIDMgaW5zZXJ0aW9ucygrKSwgNCBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9k cml2ZXJzL3ZmaW8vdmZpb19pb21tdV90eXBlMS5jIGIvZHJpdmVycy92ZmlvL3ZmaW9faW9tbXVf dHlwZTEuYwppbmRleCBiODAwZmM5YTAyNTEuLjE4YmZjMmZjOGU2ZCAxMDA2NDQKLS0tIGEvZHJp dmVycy92ZmlvL3ZmaW9faW9tbXVfdHlwZTEuYworKysgYi9kcml2ZXJzL3ZmaW8vdmZpb19pb21t dV90eXBlMS5jCkBAIC0zMDksOSArMzA5LDggQEAgc3RhdGljIGludCBwdXRfcGZuKHVuc2lnbmVk IGxvbmcgcGZuLCBpbnQgcHJvdCkKIHsKIAlpZiAoIWlzX2ludmFsaWRfcmVzZXJ2ZWRfcGZuKHBm bikpIHsKIAkJc3RydWN0IHBhZ2UgKnBhZ2UgPSBwZm5fdG9fcGFnZShwZm4pOwotCQlpZiAocHJv dCAmIElPTU1VX1dSSVRFKQotCQkJU2V0UGFnZURpcnR5KHBhZ2UpOwotCQlwdXRfcGFnZShwYWdl KTsKKworCQlwdXRfdXNlcl9wYWdlc19kaXJ0eV9sb2NrKCZwYWdlLCAxLCBwcm90ICYgSU9NTVVf V1JJVEUpOwogCQlyZXR1cm4gMTsKIAl9CiAJcmV0dXJuIDA7CkBAIC0zMjksNyArMzI4LDcgQEAg c3RhdGljIGludCB2YWRkcl9nZXRfcGZuKHN0cnVjdCBtbV9zdHJ1Y3QgKm1tLCB1bnNpZ25lZCBs b25nIHZhZGRyLAogCQlmbGFncyB8PSBGT0xMX1dSSVRFOwogCiAJZG93bl9yZWFkKCZtbS0+bW1h cF9zZW0pOwotCXJldCA9IGdldF91c2VyX3BhZ2VzX3JlbW90ZShOVUxMLCBtbSwgdmFkZHIsIDEs IGZsYWdzIHwgRk9MTF9MT05HVEVSTSwKKwlyZXQgPSBwaW5fdXNlcl9wYWdlc19yZW1vdGUoTlVM TCwgbW0sIHZhZGRyLCAxLCBmbGFncyB8IEZPTExfTE9OR1RFUk0sCiAJCQkJICAgIHBhZ2UsIE5V TEwsIE5VTEwpOwogCWlmIChyZXQgPT0gMSkgewogCQkqcGZuID0gcGFnZV90b19wZm4ocGFnZVsw XSk7Ci0tIAoyLjI0LjAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9w Lm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1k ZXZlbA==