• NeilBrown's avatar
    md: don't retry recovery of raid1 that fails due to error on source drive. · 4044ba58
    NeilBrown authored
    If a raid1 has only one working drive and it has a sector which
    gives an error on read, then an attempt to recover onto a spare will
    fail, but as the single remaining drive is not removed from the
    array, the recovery will be immediately re-attempted, resulting
    in an infinite recovery loop.
    
    So detect this situation and don't retry recovery once an error
    on the lone remaining drive is detected.
    
    Allow recovery to be retried once every time a spare is added
    in case the problem wasn't actually a media error.
    Signed-off-by: default avatarNeilBrown <neilb@suse.de>
    4044ba58
md_k.h 12.1 KB