diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-06-17 08:04:41 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-06-19 15:58:28 +0200 |
| commit | bd4a633b6f7c3c6b6ebc1a07317643270e751a94 (patch) | |
| tree | b51e88fc2def6fe0e5e7d8e880b27f5cf666f525 /drivers/md/md.c | |
| parent | block: move cache control settings out of queue->flags (diff) | |
| download | linux-bd4a633b6f7c3c6b6ebc1a07317643270e751a94.tar.xz linux-bd4a633b6f7c3c6b6ebc1a07317643270e751a94.zip | |
block: move the nonrot flag to queue_limits
Move the nonrot flag into the queue_limits feature field so that it can
be set atomically with the queue frozen.
Use the chance to switch to defaulting to non-rotational and require
the driver to opt into rotational, which matches the polarity of the
sysfs interface.
For the z2ram, ps3vram, 2x memstick, ubiblock and dcssblk the new
rotational flag is not set as they clearly are not rotational despite
this being a behavior change. There are some other drivers that
unconditionally set the rotational flag to keep the existing behavior
as they arguably can be used on rotational devices even if that is
probably not their main use today (e.g. virtio_blk and drbd).
The flag is automatically inherited in blk_stack_limits matching the
existing behavior in dm and md.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240617060532.127975-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 2f4c5d1755d8..c23423c51fb7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6151,20 +6151,7 @@ int md_run(struct mddev *mddev) if (!mddev_is_dm(mddev)) { struct request_queue *q = mddev->gendisk->queue; - bool nonrot = true; - rdev_for_each(rdev, mddev) { - if (rdev->raid_disk >= 0 && !bdev_nonrot(rdev->bdev)) { - nonrot = false; - break; - } - } - if (mddev->degraded) - nonrot = false; - if (nonrot) - blk_queue_flag_set(QUEUE_FLAG_NONROT, q); - else - blk_queue_flag_clear(QUEUE_FLAG_NONROT, q); blk_queue_flag_set(QUEUE_FLAG_IO_STAT, q); /* Set the NOWAIT flags if all underlying devices support it */ |