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| author | Damien Le Moal <damien.lemoal@wdc.com> | 2021-05-26 00:24:56 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2021-06-04 19:07:31 +0300 |
| commit | 7fc18728482b1a29bd7b8439a0ae7b3f23e097d1 (patch) | |
| tree | e396e7586b10ca69c82733f13ba82624d8cff972 /drivers/md/dm.h | |
| parent | dd73c320ec3089149b802a1316321c3e0f6a6aaf (diff) | |
| download | linux-7fc18728482b1a29bd7b8439a0ae7b3f23e097d1.tar.xz | |
dm: move zone related code to dm-zone.c
Move core and table code used for zoned targets and conditionally
defined with #ifdef CONFIG_BLK_DEV_ZONED to the new file dm-zone.c.
This file is conditionally compiled depending on CONFIG_BLK_DEV_ZONED.
The small helper dm_set_zones_restrictions() is introduced to
initialize a mapped device request queue zone attributes in
dm_table_set_restrictions().
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm.h')
| -rw-r--r-- | drivers/md/dm.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h index b441ad772c18..fdf1536a4b62 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -100,6 +100,17 @@ int dm_setup_md_queue(struct mapped_device *md, struct dm_table *t); */ #define dm_target_hybrid(t) (dm_target_bio_based(t) && dm_target_request_based(t)) +/* + * Zoned targets related functions. + */ +void dm_set_zones_restrictions(struct dm_table *t, struct request_queue *q); +#ifdef CONFIG_BLK_DEV_ZONED +int dm_blk_report_zones(struct gendisk *disk, sector_t sector, + unsigned int nr_zones, report_zones_cb cb, void *data); +#else +#define dm_blk_report_zones NULL +#endif + /*----------------------------------------------------------------- * A registry of target types. *---------------------------------------------------------------*/ |