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    Subject[PATCH 4.9 174/206] xfs: check return value of _trans_reserve_quota_nblks
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------


    From: "Darrick J. Wong" <darrick.wong@oracle.com>

    commit 4fd29ec47212c8cbf98916af519019ccc5e58e49 upstream.

    Check the return value of xfs_trans_reserve_quota_nblks for errors.

    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Reviewed-by: Dave Chinner <dchinner@redhat.com>
    Signed-off-by: Dave Chinner <david@fromorbit.com>
    Cc: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    fs/xfs/libxfs/xfs_bmap.c | 5 ++++-
    1 file changed, 4 insertions(+), 1 deletion(-)

    --- a/fs/xfs/libxfs/xfs_bmap.c
    +++ b/fs/xfs/libxfs/xfs_bmap.c
    @@ -4902,8 +4902,11 @@ xfs_bmap_del_extent_delay(
    * sb counters as we might have to borrow some blocks for the
    * indirect block accounting.
    */
    - xfs_trans_reserve_quota_nblks(NULL, ip, -((long)del->br_blockcount), 0,
    + error = xfs_trans_reserve_quota_nblks(NULL, ip,
    + -((long)del->br_blockcount), 0,
    isrt ? XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
    + if (error)
    + return error;
    ip->i_delayed_blks -= del->br_blockcount;

    if (whichfork == XFS_COW_FORK)

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