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由 Damien Le Moal 提交于
Growing in size a high priority request by merging it with a lower priority BIO or request will increase the request execution time. This is the opposite result of the desired effect of high I/O priorities, namely getting low I/O latencies. Prevent merging of requests and BIOs that have different I/O priorities to fix this. Signed-off-by: NDamien Le Moal <damien.lemoal@wdc.com> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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