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| author | Ajay Joshi <ajay.joshi@wdc.com> | 2019-10-27 23:05:46 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-11-07 06:31:50 -0700 |
| commit | e876df1fe0ad1b191284ee6ed2db7960bd322d00 (patch) | |
| tree | 3b2f4ad11a1dc4e924437ba803731bb9e8cb6e53 /block | |
| parent | 6c1b1da58f8c7a697a88ae35afeba196fc7b701e (diff) | |
| download | lwn-e876df1fe0ad1b191284ee6ed2db7960bd322d00.tar.gz lwn-e876df1fe0ad1b191284ee6ed2db7960bd322d00.zip | |
block: add zone open, close and finish ioctl support
Introduce three new ioctl commands BLKOPENZONE, BLKCLOSEZONE and
BLKFINISHZONE to allow applications to control the condition of zones
on a zoned block device through the execution of the REQ_OP_ZONE_OPEN,
REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH operations.
Contains contributions from Matias Bjorling, Hans Holmberg,
Dmitry Fomichev, Keith Busch, Damien Le Moal and Christoph Hellwig.
Reviewed-by: Javier González <javier@javigon.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com>
Signed-off-by: Matias Bjorling <matias.bjorling@wdc.com>
Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-zoned.c | 28 | ||||
| -rw-r--r-- | block/ioctl.c | 5 |
2 files changed, 27 insertions, 6 deletions
diff --git a/block/blk-zoned.c b/block/blk-zoned.c index dab34dc48fb6..481eaf7d04d4 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -357,15 +357,16 @@ int blkdev_report_zones_ioctl(struct block_device *bdev, fmode_t mode, } /* - * BLKRESETZONE ioctl processing. + * BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE and BLKFINISHZONE ioctl processing. * Called from blkdev_ioctl. */ -int blkdev_reset_zones_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) +int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode, + unsigned int cmd, unsigned long arg) { void __user *argp = (void __user *)arg; struct request_queue *q; struct blk_zone_range zrange; + enum req_opf op; if (!argp) return -EINVAL; @@ -386,8 +387,25 @@ int blkdev_reset_zones_ioctl(struct block_device *bdev, fmode_t mode, if (copy_from_user(&zrange, argp, sizeof(struct blk_zone_range))) return -EFAULT; - return blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET, - zrange.sector, zrange.nr_sectors, GFP_KERNEL); + switch (cmd) { + case BLKRESETZONE: + op = REQ_OP_ZONE_RESET; + break; + case BLKOPENZONE: + op = REQ_OP_ZONE_OPEN; + break; + case BLKCLOSEZONE: + op = REQ_OP_ZONE_CLOSE; + break; + case BLKFINISHZONE: + op = REQ_OP_ZONE_FINISH; + break; + default: + return -ENOTTY; + } + + return blkdev_zone_mgmt(bdev, op, zrange.sector, zrange.nr_sectors, + GFP_KERNEL); } static inline unsigned long *blk_alloc_zone_bitmap(int node, diff --git a/block/ioctl.c b/block/ioctl.c index 15a0eb80ada9..8756efb1419e 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -532,7 +532,10 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, case BLKREPORTZONE: return blkdev_report_zones_ioctl(bdev, mode, cmd, arg); case BLKRESETZONE: - return blkdev_reset_zones_ioctl(bdev, mode, cmd, arg); + case BLKOPENZONE: + case BLKCLOSEZONE: + case BLKFINISHZONE: + return blkdev_zone_mgmt_ioctl(bdev, mode, cmd, arg); case BLKGETZONESZ: return put_uint(arg, bdev_zone_sectors(bdev)); case BLKGETNRZONES: |