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  • Steven Whitehouse's avatar
    [GFS2] Readpages support · fd88de56
    Steven Whitehouse authored
    This adds readpages support (and also corrects a small bug in
    the readpage error path at the same time). Hopefully this will
    improve performance by allowing GFS to submit larger lumps of
    I/O at a time.
    In order to simplify the setting of BH_Boundary, it currently gets
    set when we hit the end of a indirect pointer block. There is
    always a boundary at this point with the current allocation code.
    It doesn't get all the boundaries right though, so there is still
    room for improvement in this.
    See comments in fs/gfs2/ops_address.c for further information about
    readpages with GFS2.
    Signed-off-by: Steven Whitehouse