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 51A54C43141 for ; Fri, 15 Nov 2019 05:54:20 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 332BE20715 for ; Fri, 15 Nov 2019 05:54:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 332BE20715 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 399696E1F4; Fri, 15 Nov 2019 05:53:59 +0000 (UTC) Received: from hqemgate16.nvidia.com (hqemgate16.nvidia.com [216.228.121.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id DD5A16E0D0 for ; Fri, 15 Nov 2019 05:53:45 +0000 (UTC) Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 14 Nov 2019 21:53:45 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Thu, 14 Nov 2019 21:53:45 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Thu, 14 Nov 2019 21:53:45 -0800 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 15 Nov 2019 05:53:45 +0000 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 15 Nov 2019 05:53:44 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Fri, 15 Nov 2019 05:53:44 +0000 Received: from blueforge.nvidia.com (Not Verified[10.110.48.28]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 14 Nov 2019 21:53:44 -0800 From: John Hubbard To: Andrew Morton Subject: [PATCH v5 13/24] mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() Date: Thu, 14 Nov 2019 21:53:29 -0800 Message-ID: <20191115055340.1825745-14-jhubbard@nvidia.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191115055340.1825745-1-jhubbard@nvidia.com> References: <20191115055340.1825745-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1573797225; bh=3Py2O4K3WxT2/yPBKlFkEQrJEl3zr7dYM5uV5CiR5XQ=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:X-NVConfidentiality: Content-Type:Content-Transfer-Encoding; b=jdDiMyOEnP5eS1dOwRa2jVdSS1JADRygXXtTBBrghLFWcktsSAG4zexhxuX145e0w pWJkCO7bdrf2vAJcyQyroZlgEotuVY90GZt1Pf73slvWp9mZhADHAAxueKCWo4OJdL sI7P4gO+GQlkDBBXIhUdaJdstjtAIXbu+Ltu2qbcG2sF+XD8vhPUV7G5ggv/X8hjlt ALKlTpXWQGxaTUsPsbu9f9D6w86IxdWKrevknv93BclPBB7xuVOfduVX2Gx6Pik54W gd0WmvqfjK6WKXTDrVRrqqzj8JU9+6c4sS3BIlpkWsE5ehhWC7cGvvPsF4Nri5tIgR twRKx/v4ZhSXw== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 , Mauro Carvalho Chehab , Magnus Karlsson , Jens Axboe , netdev@vger.kernel.org, Alex Williamson , linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "David S . 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: <20191115055329.x5T4uAQ1sORFNTbXtbh0ARiQ10K7YPF71m-dmYoSBs0@z> Q29udmVydCBwcm9jZXNzX3ZtX2FjY2VzcyB0byB1c2UgdGhlIG5ldyBwaW5fdXNlcl9wYWdlc19y ZW1vdGUoKQpjYWxsLCB3aGljaCBzZXRzIEZPTExfUElOLiBTZXR0aW5nIEZPTExfUElOIGlzIG5v dyByZXF1aXJlZCBmb3IKY29kZSB0aGF0IHJlcXVpcmVzIHRyYWNraW5nIG9mIHBpbm5lZCBwYWdl cy4KCkFsc28sIHJlbGVhc2UgdGhlIHBhZ2VzIHZpYSBwdXRfdXNlcl9wYWdlKigpLgoKQWxzbywg cmVuYW1lICJwYWdlcyIgdG8gInBpbm5lZF9wYWdlcyIsIGFzIHRoaXMgbWFrZXMgZm9yCmVhc2ll ciByZWFkaW5nIG9mIHByb2Nlc3Nfdm1fcndfc2luZ2xlX3ZlYygpLgoKUmV2aWV3ZWQtYnk6IErD qXLDtG1lIEdsaXNzZSA8amdsaXNzZUByZWRoYXQuY29tPgpSZXZpZXdlZC1ieTogSXJhIFdlaW55 IDxpcmEud2VpbnlAaW50ZWwuY29tPgpTaWduZWQtb2ZmLWJ5OiBKb2huIEh1YmJhcmQgPGpodWJi YXJkQG52aWRpYS5jb20+Ci0tLQogbW0vcHJvY2Vzc192bV9hY2Nlc3MuYyB8IDI4ICsrKysrKysr KysrKysrKy0tLS0tLS0tLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCAxNSBpbnNlcnRpb25zKCspLCAx MyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9tbS9wcm9jZXNzX3ZtX2FjY2Vzcy5jIGIvbW0v cHJvY2Vzc192bV9hY2Nlc3MuYwppbmRleCAzNTdhYTdiZWY2YzAuLmZkMjBhYjY3NWI4NSAxMDA2 NDQKLS0tIGEvbW0vcHJvY2Vzc192bV9hY2Nlc3MuYworKysgYi9tbS9wcm9jZXNzX3ZtX2FjY2Vz cy5jCkBAIC00MiwxMiArNDIsMTEgQEAgc3RhdGljIGludCBwcm9jZXNzX3ZtX3J3X3BhZ2VzKHN0 cnVjdCBwYWdlICoqcGFnZXMsCiAJCWlmIChjb3B5ID4gbGVuKQogCQkJY29weSA9IGxlbjsKIAot CQlpZiAodm1fd3JpdGUpIHsKKwkJaWYgKHZtX3dyaXRlKQogCQkJY29waWVkID0gY29weV9wYWdl X2Zyb21faXRlcihwYWdlLCBvZmZzZXQsIGNvcHksIGl0ZXIpOwotCQkJc2V0X3BhZ2VfZGlydHlf bG9jayhwYWdlKTsKLQkJfSBlbHNlIHsKKwkJZWxzZQogCQkJY29waWVkID0gY29weV9wYWdlX3Rv X2l0ZXIocGFnZSwgb2Zmc2V0LCBjb3B5LCBpdGVyKTsKLQkJfQorCiAJCWxlbiAtPSBjb3BpZWQ7 CiAJCWlmIChjb3BpZWQgPCBjb3B5ICYmIGlvdl9pdGVyX2NvdW50KGl0ZXIpKQogCQkJcmV0dXJu IC1FRkFVTFQ7CkBAIC05Niw3ICs5NSw3IEBAIHN0YXRpYyBpbnQgcHJvY2Vzc192bV9yd19zaW5n bGVfdmVjKHVuc2lnbmVkIGxvbmcgYWRkciwKIAkJZmxhZ3MgfD0gRk9MTF9XUklURTsKIAogCXdo aWxlICghcmMgJiYgbnJfcGFnZXMgJiYgaW92X2l0ZXJfY291bnQoaXRlcikpIHsKLQkJaW50IHBh Z2VzID0gbWluKG5yX3BhZ2VzLCBtYXhfcGFnZXNfcGVyX2xvb3ApOworCQlpbnQgcGlubmVkX3Bh Z2VzID0gbWluKG5yX3BhZ2VzLCBtYXhfcGFnZXNfcGVyX2xvb3ApOwogCQlpbnQgbG9ja2VkID0g MTsKIAkJc2l6ZV90IGJ5dGVzOwogCkBAIC0xMDYsMTQgKzEwNSwxNSBAQCBzdGF0aWMgaW50IHBy b2Nlc3Nfdm1fcndfc2luZ2xlX3ZlYyh1bnNpZ25lZCBsb25nIGFkZHIsCiAJCSAqIGN1cnJlbnQv Y3VycmVudC0+bW0KIAkJICovCiAJCWRvd25fcmVhZCgmbW0tPm1tYXBfc2VtKTsKLQkJcGFnZXMg PSBnZXRfdXNlcl9wYWdlc19yZW1vdGUodGFzaywgbW0sIHBhLCBwYWdlcywgZmxhZ3MsCi0JCQkJ CSAgICAgIHByb2Nlc3NfcGFnZXMsIE5VTEwsICZsb2NrZWQpOworCQlwaW5uZWRfcGFnZXMgPSBw aW5fdXNlcl9wYWdlc19yZW1vdGUodGFzaywgbW0sIHBhLCBwaW5uZWRfcGFnZXMsCisJCQkJCQkg ICAgIGZsYWdzLCBwcm9jZXNzX3BhZ2VzLAorCQkJCQkJICAgICBOVUxMLCAmbG9ja2VkKTsKIAkJ aWYgKGxvY2tlZCkKIAkJCXVwX3JlYWQoJm1tLT5tbWFwX3NlbSk7Ci0JCWlmIChwYWdlcyA8PSAw KQorCQlpZiAocGlubmVkX3BhZ2VzIDw9IDApCiAJCQlyZXR1cm4gLUVGQVVMVDsKIAotCQlieXRl cyA9IHBhZ2VzICogUEFHRV9TSVpFIC0gc3RhcnRfb2Zmc2V0OworCQlieXRlcyA9IHBpbm5lZF9w YWdlcyAqIFBBR0VfU0laRSAtIHN0YXJ0X29mZnNldDsKIAkJaWYgKGJ5dGVzID4gbGVuKQogCQkJ Ynl0ZXMgPSBsZW47CiAKQEAgLTEyMiwxMCArMTIyLDEyIEBAIHN0YXRpYyBpbnQgcHJvY2Vzc192 bV9yd19zaW5nbGVfdmVjKHVuc2lnbmVkIGxvbmcgYWRkciwKIAkJCQkJIHZtX3dyaXRlKTsKIAkJ bGVuIC09IGJ5dGVzOwogCQlzdGFydF9vZmZzZXQgPSAwOwotCQlucl9wYWdlcyAtPSBwYWdlczsK LQkJcGEgKz0gcGFnZXMgKiBQQUdFX1NJWkU7Ci0JCXdoaWxlIChwYWdlcykKLQkJCXB1dF9wYWdl KHByb2Nlc3NfcGFnZXNbLS1wYWdlc10pOworCQlucl9wYWdlcyAtPSBwaW5uZWRfcGFnZXM7CisJ CXBhICs9IHBpbm5lZF9wYWdlcyAqIFBBR0VfU0laRTsKKworCQkvKiBJZiB2bV93cml0ZSBpcyBz ZXQsIHRoZSBwYWdlcyBuZWVkIHRvIGJlIG1hZGUgZGlydHk6ICovCisJCXB1dF91c2VyX3BhZ2Vz X2RpcnR5X2xvY2socHJvY2Vzc19wYWdlcywgcGlubmVkX3BhZ2VzLAorCQkJCQkgIHZtX3dyaXRl KTsKIAl9CiAKIAlyZXR1cm4gcmM7Ci0tIAoyLjI0LjAKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVs QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==