From 9b3c08b90fc212de58c34621d83e74977170b2cd Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Mon, 8 Apr 2024 10:41:20 +0900 Subject: block: Simplify blk_revalidate_disk_zones() interface The only user of blk_revalidate_disk_zones() second argument was the SCSI disk driver (sd). Now that this driver does not require this update_driver_data argument, remove it to simplify the interface of blk_revalidate_disk_zones(). Also update the function kdoc comment to be more accurate (i.e. there is no gendisk ->revalidate method). Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Tested-by: Hans Holmberg Tested-by: Dennis Maisenbacher Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240408014128.205141-21-dlemoal@kernel.org Signed-off-by: Jens Axboe --- block/blk-zoned.c | 21 +++++++-------------- drivers/block/null_blk/zoned.c | 2 +- drivers/block/ublk_drv.c | 2 +- drivers/block/virtio_blk.c | 2 +- drivers/md/dm-zone.c | 2 +- drivers/nvme/host/core.c | 2 +- drivers/scsi/sd_zbc.c | 2 +- include/linux/blkdev.h | 3 +-- 8 files changed, 14 insertions(+), 22 deletions(-) diff --git a/block/blk-zoned.c b/block/blk-zoned.c index da0fc7e2d00a..e46d23ad2fa9 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -1713,21 +1713,17 @@ static int blk_revalidate_zone_cb(struct blk_zone *zone, unsigned int idx, /** * blk_revalidate_disk_zones - (re)allocate and initialize zone bitmaps * @disk: Target disk - * @update_driver_data: Callback to update driver data on the frozen disk * - * Helper function for low-level device drivers to check and (re) allocate and - * initialize a disk request queue zone bitmaps. This functions should normally - * be called within the disk ->revalidate method for blk-mq based drivers. + * Helper function for low-level device drivers to check, (re) allocate and + * initialize resources used for managing zoned disks. This function should + * normally be called by blk-mq based drivers when a zoned gendisk is probed + * and when the zone configuration of the gendisk changes (e.g. after a format). * Before calling this function, the device driver must already have set the * device zone size (chunk_sector limit) and the max zone append limit. * BIO based drivers can also use this function as long as the device queue * can be safely frozen. - * If the @update_driver_data callback function is not NULL, the callback is - * executed with the device request queue frozen after all zones have been - * checked. */ -int blk_revalidate_disk_zones(struct gendisk *disk, - void (*update_driver_data)(struct gendisk *disk)) +int blk_revalidate_disk_zones(struct gendisk *disk) { struct request_queue *q = disk->queue; sector_t zone_sectors = q->limits.chunk_sectors; @@ -1794,13 +1790,10 @@ int blk_revalidate_disk_zones(struct gendisk *disk, * referencing the bitmaps). */ blk_mq_freeze_queue(q); - if (ret > 0) { + if (ret > 0) ret = disk_update_zone_resources(disk, &args); - if (update_driver_data) - update_driver_data(disk); - } else { + else pr_warn("%s: failed to revalidate zones\n", disk->disk_name); - } if (ret) disk_free_zone_resources(disk); blk_mq_unfreeze_queue(q); diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c index 0b2af273adaf..4ddd84752557 100644 --- a/drivers/block/null_blk/zoned.c +++ b/drivers/block/null_blk/zoned.c @@ -177,7 +177,7 @@ int null_register_zoned_dev(struct nullb *nullb) disk->disk_name, queue_emulates_zone_append(q) ? "emulated" : "native"); - return blk_revalidate_disk_zones(disk, NULL); + return blk_revalidate_disk_zones(disk); } void null_free_zoned_dev(struct nullb_device *dev) diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index ab6af84e327c..851c78913de2 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -221,7 +221,7 @@ static int ublk_get_nr_zones(const struct ublk_device *ub) static int ublk_revalidate_disk_zones(struct ublk_device *ub) { - return blk_revalidate_disk_zones(ub->ub_disk, NULL); + return blk_revalidate_disk_zones(ub->ub_disk); } static int ublk_dev_param_zoned_validate(const struct ublk_device *ub) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 42dea7601d87..c1af0a7d56c8 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -1543,7 +1543,7 @@ static int virtblk_probe(struct virtio_device *vdev) */ if (IS_ENABLED(CONFIG_BLK_DEV_ZONED) && lim.zoned) { blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, vblk->disk->queue); - err = blk_revalidate_disk_zones(vblk->disk, NULL); + err = blk_revalidate_disk_zones(vblk->disk); if (err) goto out_cleanup_disk; } diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c index 34769f3e3175..d17ae4486a6a 100644 --- a/drivers/md/dm-zone.c +++ b/drivers/md/dm-zone.c @@ -169,7 +169,7 @@ static int dm_revalidate_zones(struct mapped_device *md, struct dm_table *t) * our table for dm_blk_report_zones() to use directly. */ md->zone_revalidate_map = t; - ret = blk_revalidate_disk_zones(disk, NULL); + ret = blk_revalidate_disk_zones(disk); md->zone_revalidate_map = NULL; if (ret) { diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 943d72bdd794..c9955ecd1790 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2150,7 +2150,7 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns, blk_mq_unfreeze_queue(ns->disk->queue); if (blk_queue_is_zoned(ns->queue)) { - ret = blk_revalidate_disk_zones(ns->disk, NULL); + ret = blk_revalidate_disk_zones(ns->disk); if (ret && !nvme_first_scan(ns->disk)) goto out; } diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index d0ead9858954..806036e48abe 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -572,7 +572,7 @@ int sd_zbc_revalidate_zones(struct scsi_disk *sdkp) blk_queue_max_zone_append_sectors(q, 0); flags = memalloc_noio_save(); - ret = blk_revalidate_disk_zones(disk, NULL); + ret = blk_revalidate_disk_zones(disk); memalloc_noio_restore(flags); if (ret) { sdkp->zone_info = (struct zoned_disk_info){ }; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 46613bf6a402..fbc6860b3622 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -336,8 +336,7 @@ int blkdev_report_zones(struct block_device *bdev, sector_t sector, unsigned int nr_zones, report_zones_cb cb, void *data); int blkdev_zone_mgmt(struct block_device *bdev, enum req_op op, sector_t sectors, sector_t nr_sectors); -int blk_revalidate_disk_zones(struct gendisk *disk, - void (*update_driver_data)(struct gendisk *disk)); +int blk_revalidate_disk_zones(struct gendisk *disk); /* * Independent access ranges: struct blk_independent_access_range describes -- cgit v1.2.3