blk_queue_flush(9)

blk_queue_flush9

Configure queue's cache flush capability

Usage

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

Overview

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.

Releases

2 releases since Debian 7 (Wheezy); the text changed 1 time.

  1. 7
  2. 8

From linux-manual-3.16 3.16.56-1+deb8u1 in Debian 8 (Jessie). Parsed by carta from the page's man source.