diff options
| -rw-r--r-- | block/blk-core.c | 5 | ||||
| -rw-r--r-- | block/blk-zoned.c | 39 |
2 files changed, 44 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 5878504a29af..919629ce4015 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -129,6 +129,7 @@ static const char *const blk_op_name[] = { REQ_OP_NAME(DISCARD), REQ_OP_NAME(SECURE_ERASE), REQ_OP_NAME(ZONE_RESET), + REQ_OP_NAME(ZONE_RESET_ALL), REQ_OP_NAME(WRITE_SAME), REQ_OP_NAME(WRITE_ZEROES), REQ_OP_NAME(SCSI_IN), @@ -932,6 +933,10 @@ generic_make_request_checks(struct bio *bio) if (!blk_queue_is_zoned(q)) goto not_supported; break; + case REQ_OP_ZONE_RESET_ALL: + if (!blk_queue_is_zoned(q) || !blk_queue_zone_resetall(q)) + goto not_supported; + break; case REQ_OP_WRITE_ZEROES: if (!q->limits.max_write_zeroes_sectors) goto not_supported; diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 6c503824ba3f..4bc5f260248a 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -202,6 +202,42 @@ int blkdev_report_zones(struct block_device *bdev, sector_t sector, } EXPORT_SYMBOL_GPL(blkdev_report_zones); +/* + * Special case of zone reset operation to reset all zones in one command, + * useful for applications like mkfs. + */ +static int __blkdev_reset_all_zones(struct block_device *bdev, gfp_t gfp_mask) +{ + struct bio *bio = bio_alloc(gfp_mask, 0); + int ret; + + /* across the zones operations, don't need any sectors */ + bio_set_dev(bio, bdev); + bio_set_op_attrs(bio, REQ_OP_ZONE_RESET_ALL, 0); + + ret = submit_bio_wait(bio); + bio_put(bio); + + return ret; +} + +static inline bool blkdev_allow_reset_all_zones(struct block_device *bdev, + sector_t nr_sectors) +{ + if (!blk_queue_zone_resetall(bdev_get_queue(bdev))) + return false; + + if (nr_sectors != part_nr_sects_read(bdev->bd_part)) + return false; + /* + * REQ_OP_ZONE_RESET_ALL can be executed only if the block device is + * the entire disk, that is, if the blocks device start offset is 0 and + * its capacity is the same as the entire disk. + */ + return get_start_sect(bdev) == 0 && + part_nr_sects_read(bdev->bd_part) == get_capacity(bdev->bd_disk); +} + /** * blkdev_reset_zones - Reset zones write pointer * @bdev: Target block device @@ -235,6 +271,9 @@ int blkdev_reset_zones(struct block_device *bdev, /* Out of range */ return -EINVAL; + if (blkdev_allow_reset_all_zones(bdev, nr_sectors)) + return __blkdev_reset_all_zones(bdev, gfp_mask); + /* Check alignment (handle eventual smaller last zone) */ zone_sectors = blk_queue_zone_sectors(q); if (sector & (zone_sectors - 1)) |