Commit 72cd8757 authored by Damien Le Moal's avatar Damien Le Moal Committed by Jens Axboe

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: default avatarHannes Reinecke <>
Reviewed-by: default avatarChristoph Hellwig <>
Signed-off-by: default avatarDamien Le Moal <>
Signed-off-by: default avatarJens Axboe <>
parent 2e85fbaf
......@@ -532,6 +532,8 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
return blkdev_report_zones_ioctl(bdev, mode, cmd, arg);
return blkdev_reset_zones_ioctl(bdev, mode, cmd, arg);
return put_uint(arg, bdev_zone_sectors(bdev));
return blkdev_getgeo(bdev, argp);
......@@ -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 */
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