Prefer full zones when selecting the next zone for reclaim.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxx>
---
drivers/md/dm-zoned-metadata.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 6c8d4ddd8b27..e01ca1c57ff2 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1939,7 +1939,7 @@ static struct dm_zone *dmz_get_rnd_zone_for_reclaim(struct dmz_metadata *zmd,
unsigned int idx, bool idle)
{
struct dm_zone *dzone = NULL;
- struct dm_zone *zone;
+ struct dm_zone *zone, *last = NULL;
struct list_head *zone_list;
/* If we have cache zones select from the cache zone list */
@@ -1956,6 +1956,13 @@ static struct dm_zone *dmz_get_rnd_zone_for_reclaim(struct dmz_metadata *zmd,
dzone = zone->bzone;
if (dzone->dev->dev_idx != idx)
continue;
+ if (!last) {
+ last = dzone;
+ continue;
+ }
+ if (last->weight < dzone->weight)
+ continue;
+ dzone = last;
} else
dzone = zone;
if (dmz_lock_zone_reclaim(dzone))
--
2.16.4
--
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