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{ "id": 807871, "url": "http://patchwork.ozlabs.org/api/covers/807871/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/cover/150412222686.10177.8031279869867070772.stgit@dwillia2-desk3.amr.corp.intel.com/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/projects/8/?format=api", "name": "Linux ext4 filesystem development", "link_name": "linux-ext4", "list_id": "linux-ext4.vger.kernel.org", "list_email": "linux-ext4@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<150412222686.10177.8031279869867070772.stgit@dwillia2-desk3.amr.corp.intel.com>", "list_archive_url": null, "date": "2017-08-30T19:43:47", "name": "[v3,0/4] fs, dax: lookup dax_device at mount time", "submitter": { "id": 347, "url": "http://patchwork.ozlabs.org/api/people/347/?format=api", "name": "Dan Williams", "email": "dan.j.williams@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/cover/150412222686.10177.8031279869867070772.stgit@dwillia2-desk3.amr.corp.intel.com/mbox/", "series": [ { "id": 694, "url": "http://patchwork.ozlabs.org/api/series/694/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=694", "date": "2017-08-30T19:43:47", "name": "fs, dax: lookup dax_device at mount time", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/694/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/807871/comments/", "headers": { "Return-Path": "<linux-ext4-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-ext4-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xjGLt5lQfz9sP5\n\tfor <patchwork-incoming@ozlabs.org>;\n\tThu, 31 Aug 2017 05:50:14 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751332AbdH3TuN (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tWed, 30 Aug 2017 15:50:13 -0400", "from mga09.intel.com ([134.134.136.24]:24288 \"EHLO mga09.intel.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1750941AbdH3TuM (ORCPT <rfc822;linux-ext4@vger.kernel.org>);\n\tWed, 30 Aug 2017 15:50:12 -0400", "from fmsmga004.fm.intel.com ([10.253.24.48])\n\tby orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t30 Aug 2017 12:50:11 -0700", "from dwillia2-desk3.jf.intel.com (HELO\n\tdwillia2-desk3.amr.corp.intel.com) ([10.54.39.125])\n\tby fmsmga004.fm.intel.com with ESMTP; 30 Aug 2017 12:50:11 -0700" ], "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.41,449,1498546800\"; d=\"scan'208\";a=\"306272800\"", "Subject": "[PATCH v3 0/4] fs, dax: lookup dax_device at mount time", "From": "Dan Williams <dan.j.williams@intel.com>", "To": "linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org", "Cc": "Jan Kara <jack@suse.cz>, linux-nvdimm@lists.01.org,\n\t\"Darrick J. Wong\" <darrick.wong@oracle.com>,\n\tAndreas Dilger <adilger.kernel@dilger.ca>,\n\tTheodore Ts'o <tytso@mit.edu>, Christoph Hellwig <hch@lst.de>", "Date": "Wed, 30 Aug 2017 12:43:47 -0700", "Message-ID": "<150412222686.10177.8031279869867070772.stgit@dwillia2-desk3.amr.corp.intel.com>", "User-Agent": "StGit/0.17.1-9-g687f", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Sender": "linux-ext4-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<linux-ext4.vger.kernel.org>", "X-Mailing-List": "linux-ext4@vger.kernel.org" }, "content": "Changes since v2 [1]:\n* Split fs_dax_get_by_bdev() to its own patch (Christoph)\n\n* Push dax_device reference management into <fs>_{fill,put}_super()\n rather than the generic vfs. (Christoph)\n\n[1]: https://lists.01.org/pipermail/linux-nvdimm/2017-August/012133.html\n\n---\n\nChristoph notes:\n\n I just noticed that we now do a fs_dax_get_by_host in every\n iomap_begin call for DAX. This function iterates a list, does a\n string compared and igrab. I really think we need to cache this in\n the superblock (possible even the fs superblock) similar to what we\n do for the block device.\n\nThis passes the libnvdimm unit tests.\n\n---\n\nDan Williams (4):\n dax: introduce a fs_dax_get_by_bdev() helper\n xfs: perform dax_device lookup at mount\n ext2: perform dax_device lookup at mount\n ext4: perform dax_device lookup at mount\n\n\n drivers/dax/super.c | 10 ++++++++++\n fs/ext2/ext2.h | 1 +\n fs/ext2/inode.c | 11 +++--------\n fs/ext2/super.c | 5 +++++\n fs/ext4/ext4.h | 1 +\n fs/ext4/inode.c | 11 +++--------\n fs/ext4/super.c | 5 +++++\n fs/xfs/xfs_aops.c | 13 +++++++++++++\n fs/xfs/xfs_aops.h | 1 +\n fs/xfs/xfs_buf.c | 4 +++-\n fs/xfs/xfs_buf.h | 3 ++-\n fs/xfs/xfs_iomap.c | 10 +---------\n fs/xfs/xfs_super.c | 25 +++++++++++++++++++++----\n include/linux/dax.h | 6 ++++++\n 14 files changed, 75 insertions(+), 31 deletions(-)" }