• Heinz Mauelshagen's avatar
    dm raid: add reshaping support to the target · 9dbd1aa3
    Heinz Mauelshagen authored
    
    
    Add bool functions rs_is_recovering and rs_is_reshaping()
    to test for ongoing recovery/reshaping respectively in order
    to reject respective requests on ongoing ones.
    
    Remove ctr array size check, because ti->len and array
    sectors will differ during disk addition/removal reshape.
    
    Use __is_raid10_near() rather than type string compare.
    
    Introduce rs_check_reshape() and rs_start_reshape(),
    use the former in the ctr to reject bogus rehsape requests
    and the latter in preresume to actually start a reshape.
    Signed-off-by: default avatarHeinz Mauelshagen <heinzm@redhat.com>
    Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
    9dbd1aa3