openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

brd: Mark as non-rotational 

This commit sets QUEUE_FLAG_NONROT and clears up QUEUE_FLAG_ADD_RANDOM
to mark the ramdisks as non-rotational device.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
SeongJae Park 2018-05-03 18:53:26 +09:00 committed by Jens Axboe
parent 522a777566
commit 316ba5736c
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/block/brd.c
View File

@ -402,6 +402,10 @@ static struct brd_device *brd_alloc(int i)
set_capacity(disk, rd_size * 2);
disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO;
/* Tell the block layer that this is not a rotational device */
blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);
blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue);
return brd;
out_free_queue: