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authorDamien Le Moal <damien.lemoal@wdc.com>2021-05-26 00:24:56 +0300
committerMike Snitzer <snitzer@redhat.com>2021-06-04 19:07:31 +0300
commit7fc18728482b1a29bd7b8439a0ae7b3f23e097d1 (patch)
treee396e7586b10ca69c82733f13ba82624d8cff972 /drivers/md/dm.h
parentdd73c320ec3089149b802a1316321c3e0f6a6aaf (diff)
downloadlinux-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.h11
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.
*---------------------------------------------------------------*/