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    Subject[PATCH 6/6] Gfs2: fail if we try to use hole punch
    Date
    Gfs2 doesn't have the ability to punch holes yet, so make sure we return
    EOPNOTSUPP if we try to use hole punching through fallocate. This support can
    be added later. Thanks,

    Signed-off-by: Josef Bacik <josef@redhat.com>
    ---
    fs/gfs2/ops_inode.c | 4 ++++
    1 files changed, 4 insertions(+), 0 deletions(-)

    diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
    index 12cbea7..65cb5f6 100644
    --- a/fs/gfs2/ops_inode.c
    +++ b/fs/gfs2/ops_inode.c
    @@ -1439,6 +1439,10 @@ static long gfs2_fallocate(struct inode *inode, int mode, loff_t offset,
    loff_t next = (offset + len - 1) >> sdp->sd_sb.sb_bsize_shift;
    next = (next + 1) << sdp->sd_sb.sb_bsize_shift;

    + /* We only support the FALLOC_FL_KEEP_SIZE mode */
    + if (mode && (mode != FALLOC_FL_KEEP_SIZE))
    + return -EOPNOTSUPP;
    +
    offset = (offset >> sdp->sd_sb.sb_bsize_shift) <<
    sdp->sd_sb.sb_bsize_shift;

    --
    1.6.6.1


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