table of contents
| 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¶
| June 2024 | Kernel Hackers Manual 3.10 |