• NeilBrown's avatar
    md: raid1/raid10: fix problem with merge_bvec_fn · aba336bd
    NeilBrown authored
    The new merge_bvec_fn which calls the corresponding function
    in subsidiary devices requires that mddev->merge_check_needed
    be set if any child has a merge_bvec_fn.
    
    However were were only setting that when a device was hot-added,
    not when a device was present from the start.
    
    This bug was introduced in 3.4 so patch is suitable for 3.4.y
    kernels.  However that are conflicts in raid10.c so a separate
    patch will be needed for 3.4.y.
    
    Cc: stable@vger.kernel.org
    Reported-by: default avatarSebastian Riemer <sebastian.riemer@profitbricks.com>
    Signed-off-by: default avatarNeilBrown <neilb@suse.de>
    aba336bd
raid1.c 78.6 KB