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path: root/drivers/md/dm-zoned-target.c
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Diffstat (limited to 'drivers/md/dm-zoned-target.c')
-rw-r--r--drivers/md/dm-zoned-target.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index f4f83d39b3dc..0b4b27d280fb 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -965,6 +965,31 @@ static int dmz_iterate_devices(struct dm_target *ti,
return fn(ti, dmz->ddev, 0, capacity, data);
}
+static void dmz_status(struct dm_target *ti, status_type_t type,
+ unsigned int status_flags, char *result,
+ unsigned int maxlen)
+{
+ struct dmz_target *dmz = ti->private;
+ ssize_t sz = 0;
+ char buf[BDEVNAME_SIZE];
+
+ switch (type) {
+ case STATUSTYPE_INFO:
+ DMEMIT("%u zones %u/%u random %u/%u sequential",
+ dmz_nr_zones(dmz->metadata),
+ dmz_nr_unmap_rnd_zones(dmz->metadata),
+ dmz_nr_rnd_zones(dmz->metadata),
+ dmz_nr_unmap_seq_zones(dmz->metadata),
+ dmz_nr_seq_zones(dmz->metadata));
+ break;
+ case STATUSTYPE_TABLE:
+ format_dev_t(buf, dmz->dev->bdev->bd_dev);
+ DMEMIT("%s", buf);
+ break;
+ }
+ return;
+}
+
static struct target_type dmz_type = {
.name = "zoned",
.version = {1, 1, 0},
@@ -978,6 +1003,7 @@ static struct target_type dmz_type = {
.postsuspend = dmz_suspend,
.resume = dmz_resume,
.iterate_devices = dmz_iterate_devices,
+ .status = dmz_status,
};
static int __init dmz_init(void)