[PATCH v2 02/13] zbd: write to closed zones on the devices with max_active_zones limit

[Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>]

Current fio implementation does not handle zones in closed condition as
write target zones. When the device has max_active_zones limit, the
write to other zones may cause errors by exceeding the limit, since the
zones in closed condition consume the device resource for the
max_active_zones limit.

To avoid the error, handle the zones in closed condition as write target
in same manner as the zones in open condition when the device has the
max_active_zones limit. At the job start, check each condition of the
zones in the IO ranges and if it has closed condition, pass the zone
to zbd_write_zones_get() in same manner as the zones in open condition.

Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
---
 zbd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/zbd.c b/zbd.c
index a5cb34d2..b05d2360 100644
--- a/zbd.c
+++ b/zbd.c
@@ -1276,7 +1276,11 @@ int zbd_setup_files(struct thread_data *td)
 		for (zi = f->min_zone; zi < f->max_zone; zi++) {
 			z = &zbd->zone_info[zi];
 			if (z->cond != ZBD_ZONE_COND_IMP_OPEN &&
-			    z->cond != ZBD_ZONE_COND_EXP_OPEN)
+			    z->cond != ZBD_ZONE_COND_EXP_OPEN &&
+			    z->cond != ZBD_ZONE_COND_CLOSED)
+				continue;
+			if (!zbd->max_active_zones &&
+			    z->cond == ZBD_ZONE_COND_CLOSED)
 				continue;
 			if (__zbd_write_zone_get(td, f, z))
 				continue;
-- 
2.40.1