diff options
Diffstat (limited to 'drivers/md/dm-zone.c')
| -rw-r--r-- | drivers/md/dm-zone.c | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c index 4d37e53b50ee..c0d41c36e06e 100644 --- a/drivers/md/dm-zone.c +++ b/drivers/md/dm-zone.c @@ -292,10 +292,12 @@ static int device_get_zone_resource_limits(struct dm_target *ti, /* * If the target does not map all sequential zones, the limits - * will not be reliable. + * will not be reliable and we cannot use REQ_OP_ZONE_RESET_ALL. */ - if (zc.target_nr_seq_zones < zc.total_nr_seq_zones) + if (zc.target_nr_seq_zones < zc.total_nr_seq_zones) { zlim->reliable_limits = false; + ti->zone_reset_all_supported = false; + } /* * If the target maps less sequential zones than the limit values, then @@ -353,6 +355,14 @@ int dm_set_zones_restrictions(struct dm_table *t, struct request_queue *q, for (unsigned int i = 0; i < t->num_targets; i++) { struct dm_target *ti = dm_table_get_target(t, i); + /* + * Assume that the target can accept REQ_OP_ZONE_RESET_ALL. + * device_get_zone_resource_limits() may adjust this if one of + * the device used by the target does not have all its + * sequential write required zones mapped. + */ + ti->zone_reset_all_supported = true; + if (!ti->type->iterate_devices || ti->type->iterate_devices(ti, device_get_zone_resource_limits, &zlim)) { @@ -420,3 +430,39 @@ void dm_zone_endio(struct dm_io *io, struct bio *clone) return; } + +static int dm_zone_need_reset_cb(struct blk_zone *zone, unsigned int idx, + void *data) +{ + /* + * For an all-zones reset, ignore conventional, empty, read-only + * and offline zones. + */ + switch (zone->cond) { + case BLK_ZONE_COND_NOT_WP: + case BLK_ZONE_COND_EMPTY: + case BLK_ZONE_COND_READONLY: + case BLK_ZONE_COND_OFFLINE: + return 0; + default: + set_bit(idx, (unsigned long *)data); + return 0; + } +} + +int dm_zone_get_reset_bitmap(struct mapped_device *md, struct dm_table *t, + sector_t sector, unsigned int nr_zones, + unsigned long *need_reset) +{ + int ret; + + ret = dm_blk_do_report_zones(md, t, sector, nr_zones, + dm_zone_need_reset_cb, need_reset); + if (ret != nr_zones) { + DMERR("Get %s zone reset bitmap failed\n", + md->disk->disk_name); + return -EIO; + } + + return 0; +} |