From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2091355-1517949598-2-3246800205189435783 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1517949598; b=wARd75GR4setrqslButxMnMKKRXwneXu8/ssbWV+C1y1irT 10SMkgXl2QMJ0QFdfGfo7a5+PbEfDG2IA9kiMrtRaAxg2j2PCxsuQDfjlwCI/mRF zBy2wtwpRa24ICsU+qeaogw6iSn4VWiZeigHlfWsIf6ZUaJ5nsQq6YtuMIld9zTK OOpcl2smZMvFgWsptGYObp3Bd+vMv1S3j8H2wnCispQi0s4VKyr3bCPUJwOEDjo3 RnAHdBKbqii4K063hk0n9UYZJoZ5Q4NYpMRwkebS21teVrRzWG/J8qZ22sB2P1Zt oYDDowGvjEcPZWRbcgcDxoha6eAgYwG1KcMg5HQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to:sender :list-id; s=arctest; t=1517949598; bh=keLuI1jc24SCAvYMVyFkCVMjuf B9xe3mhDR/wpjkIVo=; b=LYnlcyzWbmid5u2yWb76aUIN4XNEs2P489vzfDIgJp TZozKIASR5LHhgTB7GG3GYZJdiYi5b5fdjPI3fvUGm6lOmyKPT073spPeVbB5kSS O4pr9vPnqgEYwkxWpDpyG8QnvK+h6Cx4adU07C9sN+4XN2h53rlxLozs9vvkCb+o FQtL3Yz0l0YjwwMYI+c5sI3fS1R8TvGEnS9NYuSbp0pJmUEJrpsYSBaB3fU6kyVf i8yaeKlS+9wtE4lM2VdKd9Adn1nwwXsVyPFhfoLOVUrVtJv3iSa+vJD2rmsQrDaM ilvLflxaeDKs38pxi8ZO/YhxBO0nDvJPFV6sk8C0iDng== ARC-Authentication-Results: i=1; mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752885AbeBFUjz (ORCPT ); Tue, 6 Feb 2018 15:39:55 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:46640 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752720AbeBFUjy (ORCPT ); Tue, 6 Feb 2018 15:39:54 -0500 Date: Tue, 6 Feb 2018 12:39:53 -0800 From: Greg KH To: Theodore Ts'o Cc: Jin Qian , Andreas Dilger , Alexander Viro , Jeff Layton , "J. Bruce Fields" , linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Jin Qian , stable@vger.kernel.org Subject: Re: [PATCHv2 1/1] ext4: don't put symlink in pagecache into highmem Message-ID: <20180206203953.GC18045@kroah.com> References: <20180206190938.172792-1-jinqian@android.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180206190938.172792-1-jinqian@android.com> User-Agent: Mutt/1.9.3 (2018-01-21) Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Tue, Feb 06, 2018 at 11:09:37AM -0800, Jin Qian wrote: > From: Jin Qian > > partial backport from 21fc61c73c3903c4c312d0802da01ec2b323d174 upstream > to v4.4 to prevent virt_to_page on highmem. > > ext4_encrypted_follow_link uses kmap() for cpage > caddr = kmap(cpage); > > _ext4_fname_disk_to_usr calls virt_to_page on the kmapped address. > _ext4_fname_disk_to_usr() > ext4_fname_decrypt() > sg_init_one() > sg_init_one(&src_sg, iname->name, iname->len); > sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); > > Cc: stable@vger.kernel.org > Signed-off-by: Al Viro > Signed-off-by: Jin Qian > Signed-off-by: Jin Qian Ted, any objection to this patch? thanks, greg k-h