diff options
| author |   Shaun Tancheff <shaun@tancheff.com> | 2016-10-18 15:40:35 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-10-18 10:05:42 -0600 |
| commit | 3ed05a987e0f63b21e634101e0b460d32f3581c3 (patch) | |
| tree | 5c5e4166fcba2cf6ceb8bc7d88e586ac752f1094 /include/uapi/linux/fs.h | |
| parent | block: Implement support for zoned block devices (diff) | |
| download | linux-dev-3ed05a987e0f63b21e634101e0b460d32f3581c3.tar.xz linux-dev-3ed05a987e0f63b21e634101e0b460d32f3581c3.zip | |
blk-zoned: implement ioctls
Adds the new BLKREPORTZONE and BLKRESETZONE ioctls for respectively
obtaining the zone configuration of a zoned block device and resetting
the write pointer of sequential zones of a zoned block device.
The BLKREPORTZONE ioctl maps directly to a single call of the function
blkdev_report_zones. The zone information result is passed as an array
of struct blk_zone identical to the structure used internally for
processing the REQ_OP_ZONE_REPORT operation. The BLKRESETZONE ioctl
maps to a single call of the blkdev_reset_zones function.
Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/uapi/linux/fs.h')
| -rw-r--r-- | include/uapi/linux/fs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index acb2b6152ba0..c1d11df07b28 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -225,6 +225,10 @@ struct fsxattr { #define BLKSECDISCARD _IO(0x12,125) #define BLKROTATIONAL _IO(0x12,126) #define BLKZEROOUT _IO(0x12,127) +/* + * A jump here: 130-131 are reserved for zoned block devices + * (see uapi/linux/blkzoned.h) + */ #define BMAP_IOCTL 1 /* obsolete - kept for compatibility */ #define FIBMAP _IO(0x00,1) /* bmap access */ |