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{
    "id": 806354,
    "url": "http://patchwork.ozlabs.org/api/covers/806354/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/cover/150389211501.25151.6477753201827914462.stgit@dwillia2-desk3.amr.corp.intel.com/",
    "project": {
        "id": 8,
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        "name": "Linux ext4 filesystem development",
        "link_name": "linux-ext4",
        "list_id": "linux-ext4.vger.kernel.org",
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    "msgid": "<150389211501.25151.6477753201827914462.stgit@dwillia2-desk3.amr.corp.intel.com>",
    "list_archive_url": null,
    "date": "2017-08-28T03:48:35",
    "name": "[v2,0/2] 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/150389211501.25151.6477753201827914462.stgit@dwillia2-desk3.amr.corp.intel.com/mbox/",
    "series": [
        {
            "id": 64,
            "url": "http://patchwork.ozlabs.org/api/series/64/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=64",
            "date": "2017-08-28T03:48:35",
            "name": "fs, dax: lookup dax_device at mount time",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/64/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/covers/806354/comments/",
    "headers": {
        "Return-Path": "<linux-ext4-owner@vger.kernel.org>",
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        "X-IronPort-AV": "E=Sophos;i=\"5.41,439,1498546800\"; d=\"scan'208\";a=\"1188719387\"",
        "Subject": "[PATCH v2 0/2] fs, dax: lookup dax_device at mount time",
        "From": "Dan Williams <dan.j.williams@intel.com>",
        "To": "linux-fsdevel@vger.kernel.org",
        "Cc": "jack@suse.cz, \"Darrick J. Wong\" <darrick.wong@oracle.com>,\n\tlinux-nvdimm@lists.01.org, linux-xfs@vger.kernel.org,\n\tAndreas Dilger <adilger.kernel@dilger.ca>,\n\tJan Kara <jack@suse.com>, Theodore Ts'o <tytso@mit.edu>,\n\tlinux-ext4@vger.kernel.org, hch@lst.de",
        "Date": "Sun, 27 Aug 2017 20:48:35 -0700",
        "Message-ID": "<150389211501.25151.6477753201827914462.stgit@dwillia2-desk3.amr.corp.intel.com>",
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        "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 v1:\n* Move the lookup to mount time. (Christoph)\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 (2):\n      fs, xfs: perform dax_device lookup at mount\n      ext2, ext4: use the super_block dax_device\n\n\n drivers/dax/super.c |   10 ++++++++++\n fs/ext2/inode.c     |   10 ++--------\n fs/ext4/inode.c     |   10 ++--------\n fs/super.c          |   26 +++++++++++++++++++++++---\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  |   21 +++++++++++++++++----\n include/linux/dax.h |    6 ++++++\n include/linux/fs.h  |    1 +\n 12 files changed, 81 insertions(+), 34 deletions(-)"
}