diff options
| author | Christoph Hellwig <hch@lst.de> | 2026-08-04 05:50:22 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-08-04 06:55:31 -0600 |
| commit | ca8f6548e6f79761cba66ec8cb45bf026da8bf7d (patch) | |
| tree | f1ebb0d26e0693a636ab25cbbfd3db5b8c39c474 | |
| parent | b3c5f8d05e68963dea7c0cb9bc60e9e669b5c54e (diff) | |
| download | linux-ca8f6548e6f79761cba66ec8cb45bf026da8bf7d.tar.gz linux-ca8f6548e6f79761cba66ec8cb45bf026da8bf7d.zip | |
block: implement async io_uring zone reset all
Add a new BLOCK_URING_CMD_ZONE_RESET_ALL uring cmd to reset all zones
for a given block device. This can be used by storage systems or
file system mkfs tools to initialize multiple devices in parallel.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://patch.msgid.link/20260804125038.740388-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/ioctl.c | 37 | ||||
| -rw-r--r-- | include/uapi/linux/blkdev.h | 1 |
2 files changed, 38 insertions, 0 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index af2a897f13f9..64b4e6c0f696 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -14,6 +14,7 @@ #include <linux/pagemap.h> #include <linux/io_uring/cmd.h> #include <linux/blk-integrity.h> +#include <trace/events/block.h> #include <uapi/linux/blkdev.h> #include "blk.h" #include "blk-crypto-internal.h" @@ -943,6 +944,40 @@ static int blkdev_cmd_discard(struct io_uring_cmd *cmd) return -EIOCBQUEUED; } +static int blkdev_cmd_zone_reset_all(struct io_uring_cmd *cmd) +{ + struct blk_iou_cmd *bic = io_uring_cmd_to_pdu(cmd, struct blk_iou_cmd); + struct block_device *bdev = I_BDEV(cmd->file->f_mapping->host); + struct bio *bio; + int err; + + if (!(file_to_blk_mode(cmd->file) & BLK_OPEN_WRITE)) + return -EBADF; + if (bdev_read_only(bdev)) + return -EPERM; + if (!bdev_is_zoned(bdev)) + return -EOPNOTSUPP; + if (bic->start || bic->len) + return -EINVAL; + + err = filemap_invalidate_pages(bdev->bd_mapping, 0, + bdev_nr_bytes(bdev) - 1, bic->nowait); + if (err) + return err; + + bio = bio_alloc(bdev, 0, REQ_OP_ZONE_RESET_ALL, + bic->nowait ? GFP_NOWAIT : GFP_KERNEL); + if (!bio) + return -EAGAIN; + if (bic->nowait) + bio->bi_opf |= REQ_NOWAIT; + trace_blkdev_zone_mgmt(bio, 0); + bio->bi_private = cmd; + bio->bi_end_io = bio_cmd_bio_end_io; + submit_bio(bio); + return -EIOCBQUEUED; +} + int blkdev_uring_cmd(struct io_uring_cmd *cmd, unsigned int issue_flags) { struct blk_iou_cmd *bic = io_uring_cmd_to_pdu(cmd, struct blk_iou_cmd); @@ -966,6 +1001,8 @@ int blkdev_uring_cmd(struct io_uring_cmd *cmd, unsigned int issue_flags) switch (cmd_op) { case BLOCK_URING_CMD_DISCARD: return blkdev_cmd_discard(cmd); + case BLOCK_URING_CMD_ZONE_RESET_ALL: + return blkdev_cmd_zone_reset_all(cmd); } return -EINVAL; } diff --git a/include/uapi/linux/blkdev.h b/include/uapi/linux/blkdev.h index 66373cd1a83a..57b0bbd04e2b 100644 --- a/include/uapi/linux/blkdev.h +++ b/include/uapi/linux/blkdev.h @@ -10,5 +10,6 @@ * It's a different number space from ioctl(), reuse the block's code 0x12. */ #define BLOCK_URING_CMD_DISCARD _IO(0x12, 0) +#define BLOCK_URING_CMD_ZONE_RESET_ALL _IO(0x12, 1) #endif |