1BLK_QUEUE_FLUSH(9)               Block Devices              BLK_QUEUE_FLUSH(9)
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NAME

6       blk_queue_flush - configure queue's cache flush capability
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SYNOPSIS

9       void blk_queue_flush(struct request_queue * q, unsigned int flush);
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ARGUMENTS

12       q
13           the request queue for the device
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15       flush
16           0, REQ_FLUSH or REQ_FLUSH | REQ_FUA
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DESCRIPTION

19       Tell block layer cache flush capability of q. If it supports flushing,
20       REQ_FLUSH should be set. If it supports bypassing write cache for
21       individual writes, REQ_FUA should be set.
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24Kernel Hackers Manual 3.10         June 2019                BLK_QUEUE_FLUSH(9)
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