* [PATCH] brd: Mark as non-rotational
@ 2018-05-03 9:53 SeongJae Park
2018-05-09 4:07 ` SeongJae Park
2018-05-09 14:44 ` Jens Axboe
0 siblings, 2 replies; 3+ messages in thread
From: SeongJae Park @ 2018-05-03 9:53 UTC (permalink / raw)
To: axboe; +Cc: linux-block, linux-kernel, SeongJae Park
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>
---
drivers/block/brd.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 66cb0f857f64..39c5b90cc187 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -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:
--
2.13.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] brd: Mark as non-rotational
2018-05-03 9:53 [PATCH] brd: Mark as non-rotational SeongJae Park
@ 2018-05-09 4:07 ` SeongJae Park
2018-05-09 14:44 ` Jens Axboe
1 sibling, 0 replies; 3+ messages in thread
From: SeongJae Park @ 2018-05-09 4:07 UTC (permalink / raw)
To: axboe, dan.j.williams, mpatocka; +Cc: linux-block, linux-kernel
I'm sending this mail for another chance of review.
Thanks,
SeongJae Park
On Thu, May 3, 2018 at 6:53 PM SeongJae Park <sj38.park@gmail.com> wrote:
> 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>
> ---
> drivers/block/brd.c | 4 ++++
> 1 file changed, 4 insertions(+)
> diff --git a/drivers/block/brd.c b/drivers/block/brd.c
> index 66cb0f857f64..39c5b90cc187 100644
> --- a/drivers/block/brd.c
> +++ b/drivers/block/brd.c
> @@ -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:
> --
> 2.13.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] brd: Mark as non-rotational
2018-05-03 9:53 [PATCH] brd: Mark as non-rotational SeongJae Park
2018-05-09 4:07 ` SeongJae Park
@ 2018-05-09 14:44 ` Jens Axboe
1 sibling, 0 replies; 3+ messages in thread
From: Jens Axboe @ 2018-05-09 14:44 UTC (permalink / raw)
To: SeongJae Park; +Cc: linux-block, linux-kernel
On 5/3/18 3:53 AM, SeongJae Park wrote:
> This commit sets QUEUE_FLAG_NONROT and clears up QUEUE_FLAG_ADD_RANDOM
> to mark the ramdisks as non-rotational device.
Applied for 4.18, thanks.
--
Jens Axboe
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-05-09 14:44 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2018-05-03 9:53 [PATCH] brd: Mark as non-rotational SeongJae Park
2018-05-09 4:07 ` SeongJae Park
2018-05-09 14:44 ` Jens Axboe
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