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  • Jonathan Brassow's avatar
    DM RAID: Fix for "sync" directive ineffectiveness · 761becff
    Jonathan Brassow authored
    There are two table arguments that can be given to a DM RAID target
    that control whether the array is forced to (re)synchronize or skip
    initialization: "sync" and "nosync".  When "sync" is given, we set
    mddev->recovery_cp to 0 in order to cause the device to resynchronize.
    This is insufficient if there is a bitmap in use, because the array
    will simply look at the bitmap and see that there is no recovery
    The fix is to skip over the loading of the superblocks when "sync" is
    given, causing new superblocks to be written that will force the array
    to go through initialization (i.e. synchronization).
    Signed-off-by: default avatarJonathan Brassow <>
    Signed-off-by: default avatarNeilBrown <>