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authorDamien Le Moal <damien.lemoal@wdc.com>2021-05-26 00:24:57 +0300
committerMike Snitzer <snitzer@redhat.com>2021-06-04 19:07:32 +0300
commit912e887505a07123917e537b657859723ce5d472 (patch)
tree747194a059f7d844ddbc210c8351cf36ca2658d9 /include/linux/device-mapper.h
parent7fc18728482b1a29bd7b8439a0ae7b3f23e097d1 (diff)
downloadlinux-912e887505a07123917e537b657859723ce5d472.tar.xz
dm: Introduce dm_report_zones()
To simplify the implementation of the report_zones operation of a zoned target, introduce the function dm_report_zones() to set a target mapping start sector in struct dm_report_zones_args and call blkdev_report_zones(). This new function is exported and the report zones callback function dm_report_zones_cb() is not. dm-linear, dm-flakey and dm-crypt are modified to use dm_report_zones(). 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 'include/linux/device-mapper.h')
-rw-r--r--include/linux/device-mapper.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index ff700fb6ce1d..caea0a079d2d 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -478,7 +478,8 @@ struct dm_report_zones_args {
/* must be filled by ->report_zones before calling dm_report_zones_cb */
sector_t start;
};
-int dm_report_zones_cb(struct blk_zone *zone, unsigned int idx, void *data);
+int dm_report_zones(struct block_device *bdev, sector_t start, sector_t sector,
+ struct dm_report_zones_args *args, unsigned int nr_zones);
#endif /* CONFIG_BLK_DEV_ZONED */
/*