BLK_QUEUE_FLUSH(9) Block Devices BLK_QUEUE_FLUSH(9)
NAME
blk_queue_flush - configure queue's cache flush capability
SYNOPSIS
void blk_queue_flush(struct request_queue * q, unsigned int flush);
ARGUMENTS
q
the request queue for the device
flush
0, REQ_FLUSH or REQ_FLUSH | REQ_FUA
DESCRIPTION
Tell block layer cache flush capability of q. If it supports flushing, REQ_FLUSH should be set. If it supports bypassing write cache for
individual writes, REQ_FUA should be set.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 BLK_QUEUE_FLUSH(9)
