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| author |   Damien Le Moal <damien.lemoal@wdc.com> | 2018-10-12 19:08:45 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2018-10-25 11:17:40 -0600 |
| commit | 72cd87576d1d885fc2968416ed5aca8f54749653 (patch) | |
| tree | c965a7ffee387262de03c108c6fecc837e5b98bb /include/uapi/linux/blkzoned.h | |
| parent | block: Limit allocation of zone descriptors for report zones (diff) | |
| download | wireguard-linux-72cd87576d1d885fc2968416ed5aca8f54749653.tar.xz wireguard-linux-72cd87576d1d885fc2968416ed5aca8f54749653.zip | |
block: Introduce BLKGETZONESZ ioctl
Get a zoned block device zone size in number of 512 B sectors.
The zone size is always 0 for regular block devices.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/blkzoned.h')
| -rw-r--r-- | include/uapi/linux/blkzoned.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h index ff5a5db8906a..281ac605f752 100644 --- a/include/uapi/linux/blkzoned.h +++ b/include/uapi/linux/blkzoned.h @@ -137,8 +137,10 @@ struct blk_zone_range { * sector specified in the report request structure. * @BLKRESETZONE: Reset the write pointer of the zones in the specified * sector range. The sector range must be zone aligned. + * @BLKGETZONESZ: Get the device zone size in number of 512 B sectors. */ #define BLKREPORTZONE _IOWR(0x12, 130, struct blk_zone_report) #define BLKRESETZONE _IOW(0x12, 131, struct blk_zone_range) +#define BLKGETZONESZ _IOW(0x12, 132, __u32) #endif /* _UAPI_BLKZONED_H */ |