• Andreas Gruenbacher's avatar
    gfs2: gfs2_walk_metadata fix · a27a0c9b
    Andreas Gruenbacher authored
    It turns out that the current version of gfs2_metadata_walker suffers
    from multiple problems that can cause gfs2_hole_size to report an
    incorrect size.  This will confuse fiemap as well as lseek with the
    SEEK_DATA flag.
    
    Fix that by changing gfs2_hole_walker to compute the metapath to the
    first data block after the hole (if any), and compute the hole size
    based on that.
    
    Fixes xfstest generic/490.
    Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
    Reviewed-by: default avatarBob Peterson <rpeterso@redhat.com>
    Cc: stable@vger.kernel.org # v4.18+
    a27a0c9b
bmap.c 65.9 KB