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由 Philipp Reisner 提交于
If during resync we read only zeroes for a range of sectors assume that these secotors can be discarded on the sync target node. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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