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由 Nikunj A Dadhania 提交于
In case where the conditional write is the first write to the page, TLB_NOTDIRTY will be set and stop_the_world is triggered. Handle this as a special case and set the dirty bit. After that fall through to the actual atomic instruction below. Signed-off-by: NNikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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