From: Hannes Reinecke <hare@suse.de>
To: Mike Snitzer <snitzer@redhat.com>
Cc: Damien LeMoal <damien.lemoal@wdc.com>, dm-devel@redhat.com
Subject: [PATCH 15/15] dm-zoned: prefer full zones for reclaim
Date: Wed, 27 May 2020 08:22:25 +0200 [thread overview]
Message-ID: <20200527062225.72849-16-hare@suse.de> (raw)
In-Reply-To: <20200527062225.72849-1-hare@suse.de>
Prefer full zones when selecting the next zone for reclaim.
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
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 b89b3d3b9ec9..f161ef4e3d3d 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1936,7 +1936,7 @@ 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 */
@@ -1953,6 +1953,13 @@ 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
next prev parent reply other threads:[~2020-05-27 6:22 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 6:22 [PATCHv2 00/15] dm-zoned: multi-device support Hannes Reinecke
2020-05-27 6:22 ` [PATCH 01/15] dm-zoned: add debugging message for reading superblocks Hannes Reinecke
2020-05-27 6:22 ` [PATCH 02/15] dm-zoned: secondary superblock must reside on the same devices than primary superblock Hannes Reinecke
2020-05-27 6:22 ` [PATCH 03/15] dm-zoned: improve logging messages for reclaim Hannes Reinecke
2020-05-27 6:22 ` [PATCH 04/15] dm-zoned: add a 'reserved' zone flag Hannes Reinecke
2020-05-27 6:22 ` [PATCH 05/15] dm-zoned: convert to xarray Hannes Reinecke
2020-05-28 2:46 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 06/15] dm-zoned: temporary superblock for tertiary devices Hannes Reinecke
2020-05-28 2:54 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 07/15] dm-zoned: add device pointer to struct dm_zone Hannes Reinecke
2020-05-28 2:57 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 08/15] dm-zoned: add metadata pointer to struct dmz_dev Hannes Reinecke
2020-05-27 6:22 ` [PATCH 09/15] dm-zoned: allocate dm devices dynamically Hannes Reinecke
2020-05-28 2:59 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 10/15] dm-zoned: per-device reclaim Hannes Reinecke
2020-05-28 3:19 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 11/15] dm-zoned: move random and sequential zones into struct dmz_dev Hannes Reinecke
2020-05-28 3:25 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 12/15] dm-zoned: support arbitrary number of devices Hannes Reinecke
2020-05-28 4:04 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 13/15] dm-zoned: allocate zone by device index Hannes Reinecke
2020-05-28 4:08 ` Damien Le Moal
2020-05-29 15:48 ` Hannes Reinecke
2020-05-31 8:54 ` Damien Le Moal
2020-05-27 6:22 ` [PATCH 14/15] dm-zoned: select reclaim zone based on " Hannes Reinecke
2020-05-28 4:11 ` Damien Le Moal
2020-05-27 6:22 ` Hannes Reinecke [this message]
2020-05-28 4:16 ` [PATCH 15/15] dm-zoned: prefer full zones for reclaim Damien Le Moal
2020-05-28 5:15 ` Damien Le Moal
2020-05-27 13:41 ` [PATCHv2 00/15] dm-zoned: multi-device support Mike Snitzer
2020-05-28 4:20 ` Damien Le Moal
2020-05-28 8:24 ` Damien Le Moal
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