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| author | Christoph Hellwig <hch@lst.de> | 2024-11-04 08:39:32 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-11-04 10:34:07 -0700 |
| commit | 2a8f6153e1c2db06a537a5c9d61102eb591776f1 (patch) | |
| tree | f93e281161726afe8fff817a85c60b62ab4ea2a6 /drivers/block | |
| parent | e494c3dce6981c0b19fee79928b293a1cf0af867 (diff) | |
| download | lwn-2a8f6153e1c2db06a537a5c9d61102eb591776f1.tar.gz lwn-2a8f6153e1c2db06a537a5c9d61102eb591776f1.zip | |
block: pre-calculate max_zone_append_sectors
max_zone_append_sectors differs from all other queue limits in that the
final value used is not stored in the queue_limits but needs to be
obtained using queue_limits_max_zone_append_sectors helper. This not
only adds (tiny) extra overhead to the I/O path, but also can be easily
forgotten in file system code.
Add a new max_hw_zone_append_sectors value to queue_limits which is
set by the driver, and calculate max_zone_append_sectors from that and
the other inputs in blk_validate_zoned_limits, similar to how
max_sectors is calculated to fix this.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20241104073955.112324-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/null_blk/zoned.c | 2 | ||||
| -rw-r--r-- | drivers/block/ublk_drv.c | 2 | ||||
| -rw-r--r-- | drivers/block/virtio_blk.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c index 9bc768b2ca56..0d5f9bf95229 100644 --- a/drivers/block/null_blk/zoned.c +++ b/drivers/block/null_blk/zoned.c @@ -166,7 +166,7 @@ int null_init_zoned_dev(struct nullb_device *dev, lim->features |= BLK_FEAT_ZONED; lim->chunk_sectors = dev->zone_size_sects; - lim->max_zone_append_sectors = dev->zone_append_max_sectors; + lim->max_hw_zone_append_sectors = dev->zone_append_max_sectors; lim->max_open_zones = dev->zone_max_open; lim->max_active_zones = dev->zone_max_active; return 0; diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 59951e7c2593..8d938b2b41ee 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -2270,7 +2270,7 @@ static int ublk_ctrl_start_dev(struct ublk_device *ub, struct io_uring_cmd *cmd) lim.features |= BLK_FEAT_ZONED; lim.max_active_zones = p->max_active_zones; lim.max_open_zones = p->max_open_zones; - lim.max_zone_append_sectors = p->max_zone_append_sectors; + lim.max_hw_zone_append_sectors = p->max_zone_append_sectors; } if (ub->params.basic.attrs & UBLK_ATTR_VOLATILE_CACHE) { diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 194417abc105..0e99a4714928 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -784,7 +784,7 @@ static int virtblk_read_zoned_limits(struct virtio_blk *vblk, wg, v); return -ENODEV; } - lim->max_zone_append_sectors = v; + lim->max_hw_zone_append_sectors = v; dev_dbg(&vdev->dev, "max append sectors = %u\n", v); return 0; |