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Commits on Mar 9, 2018

  1. xfs_repair: don't fail directory repairs when grabbing inodes

    There are a few places where xfs_repair needs to be able to load a
    damaged directory inode to perform repairs.  Since inline data fork
    verifiers can now be customized, refactor libxfs_iget to enable
    repair to get at this so that we don't crash in phase 6.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  2. xfs_db: print transaction reservation type information

    Create a new xfs_db command to print the transaction reservation info for
    a given filesystem.  This will make it easier to compare the calculations
    made by the kernel and xfsprogs in case there is a discrepancy.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  3. xfs_scrub: don't try to scan xattrs if bstat says there aren't any

    Only try to scan the extended attributes of a file if bstat says that
    the file actually has any.  Surprisingly, this reduces the phase 5
    runtime by 40% if most of the files don't have attrs.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  4. xfs_scrub: fix #include ordering to avoid build failure

    Fix the ordering of the header includes in all the scrub source.  We put
    xfs.h first so that it will pull in include/linux.h which pulls in
    linux/fs.h + whatever overrides are necessary (currently limited to
    struct fsxattr) to make things work on this platform, and then we remove
    the #includes for anything that will get pulled (directly or indirectly)
    by xfs.h for cleanliness.  Without this, a user compiling new xfsprogs
    on a system with a 4.7 kernel gets this:
    
    Building scrub
        [CC]     disk.o
    In file included from ../include/xfs.h:37:0,
                     from disk.c:40:
    ../include/xfs/linux.h:185:8: error: redefinition of 'struct fsxattr'
     struct fsxattr {
            ^~~~~~~
    In file included from disk.c:31:0:
    /usr/include/linux/fs.h:155:8: note: originally defined here
     struct fsxattr {
            ^~~~~~~
    gmake[2]: *** [../include/buildrules:60: disk.o] Error 1
    gmake[1]: *** [include/buildrules:36: scrub] Error 2
    make: *** [Makefile:77: default] Error 2
    
    Reported-by: Mikael Magnusson <mikachu@gmail.com>
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  5. xfs_scrub: don't ask user to run xfs_repair for only warnings

    Don't advise the user to run xfs_repair on a filesystem that triggers
    warnings but no errors; there's no corruption for it to fix.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  6. xfs_scrub: log operational messages when interactive

    Record the summary of an interactive session in the system log so that
    future support requests can get a better picture of what happened.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  7. xfs_db: don't crash in ablock if there's no inode

    Make sure we actually have an inode selected before trying to unwrap its
    attribute fork.  Found via a crash in xfs/288 with project quotas
    enabled.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  8. misc: fix gcc 7.3 warnings

    Fix various compiler warnings that pop up in 7.3.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  9. xfsprogs: new libxfs-apply option for Signed-off-by: tag

    Technically when a maintainer moves a patch from another project,
    they should add their Signed-off-by: tag.  Get that info automatically
    from git-config, and add an option to to override it if desired,
    to make that easy when cross-porting libxfs patches
    
    Signed-off-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Eric Sandeen
    Eric Sandeen committed Mar 9, 2018
  10. xfsprogs: call libxfs_destroy from other utilities

    Call libxfs_destroy() from xfs_copy, xfs_db, mkfs.xfs, and
    xfs_repair to allow us to detect leaked items in these
    utilities as well.
    
    Signed-off-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Eric Sandeen
    Eric Sandeen committed Mar 9, 2018
  11. libxfs: Catch non-empty zones on destroy

    Create and use a kmem_zone_destroy which warns if we are
    releasing a non-empty zone when the LIBXFS_LEAK_CHECK
    environment variable is set, wire this into libxfs_destroy(),
    and call that when various tools exit.
    
    The LIBXFS_LEAK_CHECK environment variable also causes
    the program to exit with failure when a leak is detected,
    useful for failing automated tests if leaks are encountered.
    
    Signed-off-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Eric Sandeen
    Eric Sandeen committed Mar 9, 2018
  12. libxfs: move xfs_inode_zone to rdwr.c

    The zone itself is created in rdwr.c, so define it there as
    well, and add it to the list of externs in manage_zones along
    with all the rest, for consistency.
    
    Signed-off-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Eric Sandeen
    Eric Sandeen committed Mar 9, 2018
  13. libxfs: add function to free all buffers in bcache

    libxfs_bcache_purge simply moves all "free" buffers
    onto the xfs_buf_freelist mru list; add a new function to
    actually free them when we tear everything down, so leak
    checkers don't go nuts about lots of unfreed xfs_bufs
    at exit.
    
    Signed-off-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Eric Sandeen
    Eric Sandeen committed Mar 9, 2018
  14. libxfs: Replace XFS_BUF_SET_PTR with xfs_buf_associate_memory

    We test the return value of the macro, but it returns
    returns a side-effect which looks like failure.  Write
    a userspace-libxfs-specific version of xfs_buf_associate_memory
    to make this code a tad more like the kernel, with a proper
    return value to boot.
    
    Signed-off-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Eric Sandeen
    Eric Sandeen committed Mar 9, 2018
  15. xfs_io: add RWF_DSYNC support to pwrite

    Enable testing write behaviour with the per-io RWF_DSYNC flag.
    
    Signed-Off-By: Dave Chinner <dchinner@redhat.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Dave Chinner Eric Sandeen
    Dave Chinner authored and Eric Sandeen committed Mar 9, 2018
  16. xfs_scrub: make interpreter explicit to python3

    Using #!/usr/bin/env makes some package dependency tools
    such as rpm complain given that it cannot verify package
    dependencies. Making it explicit resolves this lint rant.
    
    Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Luis R. Rodriguez Eric Sandeen
    Luis R. Rodriguez authored and Eric Sandeen committed Mar 9, 2018
  17. xfs_repair: Add missing braces to allow zeroing of corrupt log

    When xlog_find_tail() fails to find the head or the tail, the missing
    braces leads that an unparseable log always exits with status 2, even
    if we've asked for -n or -L which should proceed.  We can expose this
    issue by xfstests case xfs/098.
    
    Fixes: commit b04647e ("xfs_repair: exit with status 2 if log dirtiness is unknown")
    
    Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    yangx-jy authored and Eric Sandeen committed Mar 9, 2018
  18. xfs_io: support a basic extent swap command

    Extent swap is a low level mechanism exported by XFS to facilitate
    filesystem defragmentation. It is typically invoked by xfs_fsr under
    conditions that will atomically adjust inode extent state without
    loss of file data.
    
    While xfs_fsr provides some debug capability to tailor its behavior,
    it is not flexible enough to facilitate low level tests of the
    extent swap mechanism. For example, xfs_fsr may skip swaps between
    inodes that consist solely of preallocated extents because it
    considers such files already 100% defragmented. Further, xfs_fsr
    copies data between files where doing so may be unnecessary and thus
    inefficient for lower level tests.
    
    Add a basic swapext command to xfs_io that allows userspace
    invocation of the command under more controlled conditions. This
    facilites targeted tests without interference from xfs_fsr policy,
    such as using files with only preallocated extents, known/expected
    failure cases, etc. This command makes no effort to retain data
    across the operation. As such, it is for testing purposes only.
    
    Signed-off-by: Brian Foster <bfoster@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Dave Chinner <dchinner@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Brian Foster Eric Sandeen
    Brian Foster authored and Eric Sandeen committed Mar 9, 2018
  19. xfs_io: Add missing perror for write_once (-O)

    This got missed in the last set of patches.
    
    Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    goldwynr authored and Eric Sandeen committed Mar 9, 2018
  20. misc: enable link time optimization, if requested

    Enable link time optimization (LTO) if the builder requests it.  The
    extra link optimization results in smaller binaries.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018
  21. misc: enable retpolines across all xfsprogs utilities

    Detect and enable retpolines for all code, to mitigate Spectre v2
    (branch target injection) on x86.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Mar 9, 2018

Commits on Feb 28, 2018

  1. xfs: fix u32 type usage in sb validation function

    Source kernel commit: 131fa58d391fc0939f6c66b23776ad5df5db20f9
    
    Don't use u32, use uint32_t, because this won't work in xfsprogs.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    [sandeen: no-op commit, fixed previously to keep build working]
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 28, 2018

Commits on Feb 27, 2018

  1. xfs: don't screw up direct writes when freesp is fragmented

    Source kernel commit: 6d8a45ce29c7d67cc4fc3016dc2a07660c62482a
    
    xfs_bmap_btalloc is given a range of file offset blocks that must be
    allocated to some data/attr/cow fork.  If the fork has an extent size
    hint associated with it, the request will be enlarged on both ends to
    try to satisfy the alignment hint.  If free space is fragmentated,
    sometimes we can allocate some blocks but not enough to fulfill any of
    the requested range.  Since bmapi_allocate always trims the new extent
    mapping to match the originally requested range, this results in
    bmapi_write returning zero and no mapping.
    
    The consequences of this vary -- buffered writes will simply re-call
    bmapi_write until it can satisfy at least one block from the original
    request.  Direct IO overwrites notice nmaps == 0 and return -ENOSPC
    through the dio mechanism out to userspace with the weird result that
    writes fail even when we have enough space because the ENOSPC return
    overrides any partial write status.  For direct CoW writes the situation
    was disastrous because nobody notices us returning an invalid zero-length
    wrong-offset mapping to iomap and the write goes off into space.
    
    Therefore, if free space is so fragmented that we managed to allocate
    some space but not enough to map into even a single block of the
    original allocation request range, we should break the alignment hint in
    order to guarantee at least some forward progress for the direct write.
    If we return a short allocation to iomap_apply it'll call back about the
    remaining blocks.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  2. xfs: treat CoW fork operations as delalloc for quota accounting

    Source kernel commit: 4b4c1326fd7c7210d23d9dd3bfc51f2b6477bb9e
    
    Since the CoW fork only exists in memory, it is incorrect to update the
    on-disk quota block counts when we modify the CoW fork.  Unlike the data
    fork, even real extents in the CoW fork are only delalloc-style
    reservations (on-disk they're owned by the refcountbt) so they must not
    be tracked in the on disk quota info.  Ensure the i_delayed_blks
    accounting reflects this too.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  3. xfs: refactor accounting updates out of xfs_bmap_btalloc

    Source kernel commit: 751f3767c245f9adf4f0a4f8f04aae9ae1d675a0
    
    Move all the inode and quota accounting updates out of xfs_bmap_btalloc
    in preparation for fixing some quota accounting problems with copy on
    write.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Christoph Hellwig <hch@lst.de>
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  4. xfs: refactor inode verifier corruption error printing

    Source kernel commit: 22431bf3dfbf44d7356933776eb486a6a01dea6f
    
    Refactor inode verifier error reporting into a non-libxfs function so
    that we aren't encoding the message format in libxfs.  This also
    changes the kernel dmesg output to resemble buffer verifier errors
    more closely.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    Reviewed-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  5. xfs: bmap code cleanup

    Source kernel commit: 6ca30729c206d62d88730a904af7d543a56273d8
    
    Remove the extent size hint and realtime inode relevant code from
    the xfs_bmapi_reserve_delalloc since it is not called on the inode
    with extent size hint set or on a realtime inode.
    
    Signed-off-by: Shan Hai <shan.hai@oracle.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    Shan Hai Eric Sandeen
    Shan Hai authored and Eric Sandeen committed Feb 27, 2018
  6. Split buffer's b_fspriv field

    Source kernel commit: fb1755a645972ed096047583600838f6cf414e2b
    
    By splitting the b_fspriv field into two different fields (b_log_item
    and b_li_list). It's possible to get rid of an old ABI workaround, by
    using the new b_log_item field to store xfs_buf_log_item separated from
    the log items attached to the buffer, which will be linked in the new
    b_li_list field.
    
    This way, there is no more need to reorder the log items list to place
    the buf_log_item at the beginning of the list, simplifying a bit the
    logic to handle buffer IO.
    
    This also opens the possibility to change buffer's log items list into a
    proper list_head.
    
    b_log_item field is still defined as a void *, because it is still used
    by the log buffers to store xlog_in_core structures, and there is no
    need to add an extra field on xfs_buf just for xlog_in_core.
    
    Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
    Reviewed-by: Bill O'Donnell <billodo@redhat.com>
    Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
    [darrick: minor style changes]
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    [sandeen: b_li_list unused in userspace]
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    cmaiolino authored and Eric Sandeen committed Feb 27, 2018
  7. xfs: convert to new i_version API

    Source kernel commit: f0e28280629e0ec7921f3179409a179b1ea41f24
    
    Signed-off-by: Jeff Layton <jlayton@redhat.com>
    Acked-by: Darrick J. Wong <darrick.wong@oracle.com>
    Acked-by: Dave Chinner <dchinner@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    jtlayton authored and Eric Sandeen committed Feb 27, 2018
  8. xfs: check sb_agblocks and sb_agblklog when validating superblock

    Source kernel commit: 4bb73d014785cc55225686f9f46e7192fb59d26b
    
    Currently, we don't check sb_agblocks or sb_agblklog when we validate
    the superblock, which means that we can fuzz garbage values into those
    values and the mount succeeds.  This leads to all sorts of UBSAN
    warnings in xfs/350 since we can then coerce other parts of xfs into
    shifting by ridiculously large values.
    
    Once we've validated agblocks, make sure the agcount makes sense.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    [sandeen: fix up u32 usage now so we keep building]
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  9. xfs: recheck reflink / dirty page status before freeing CoW reservations

    Source kernel commit: be78ff0e72778eb4df4aac66edb9e97462bfe00d
    
    Eryu Guan reported seeing occasional hangs when running generic/269 with
    a new fsstress that supports clonerange/deduperange.  The cause of this
    hang is an infinite loop when we convert the CoW fork extents from
    unwritten to real just prior to writing the pages out; the infinite
    loop happens because there's nothing in the CoW fork to convert, and so
    it spins forever.
    
    The fundamental issue here is that when we go to perform these CoW fork
    conversions, we're supposed to have an extent waiting for us, but the
    low space CoW reaper has snuck in and blown them away!  There are four
    conditions that can dissuade the reaper from touching our file -- no
    reflink iflag; dirty page cache; writeback in progress; or directio in
    progress.  We check the four conditions prior to taking the locks, but
    we neglect to recheck them once we have the locks, which is how we end
    up whacking the writeback that's in progress.
    
    Therefore, refactor the four checks into a helper function and call it
    once again once we have the locks to make sure we really want to reap
    the inode.  While we're at it, add an ASSERT for this weird condition so
    that we'll fail noisily if we ever screw this up again.
    
    Reported-by: Eryu Guan <eguan@redhat.com>
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Tested-by: Eryu Guan <eguan@redhat.com>
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  10. xfs: btree format ifork loader should check for zero numrecs

    Source kernel commit: 55e45429ce3e4ac9dd2bf4937b1a499a69ccc4ca
    
    A btree format inode fork with zero records makes no sense, so reject it
    if we see it, or else we can miscalculate memory allocations.  Found by
    zeroes fuzzing {a,u3}.bmbt.numrecs in xfs/{374,378,412} with KASAN.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  11. xfs: attr leaf verifier needs to check for obviously bad count

    Source kernel commit: 79a69bf8dc240ebeb105226a8a8540df136bf987
    
    In the attribute leaf verifier, we can check for obviously bad values of
    firstused and count so that later attempts at lasthash don't run off the
    end of the memory buffer.  Found by ones fuzzing hdr.count in xfs/400 with
    KASAN.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  12. xfs: directory scrubber must walk through data block to offset

    Source kernel commit: ce92d29ddf9908d397895c46b7c78e9db8df414d
    
    In xfs_scrub_dir_rec, we must walk through the directory block entries
    to arrive at the offset given by the hash structure.  If we blindly
    trust the hash address, we can end up midway into a directory entry and
    stray outside the block.  Found by lastbit fuzzing lents[3].address in
    xfs/390 with KASAN enabled.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Dave Chinner <dchinner@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
  13. xfs: cross-reference the realtime bitmap

    Source kernel commit: 46d9bfb5e706493777b9dfed666cd8967f69e6fd
    
    While we're scrubbing various btrees, cross-reference the records
    with the other metadata.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Dave Chinner <dchinner@redhat.com>
    Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
    djwong authored and Eric Sandeen committed Feb 27, 2018
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