From: Hannes Reinecke <hare@suse.de>
To: Mike Snitzer <snitzer@redhat.com>
Cc: Damien LeMoal <damien.lemoal@wdc.com>,
Bob Liu <bob.liu@oracle.com>,
dm-devel@redhat.com
Subject: [PATCH 14/15] dm-zoned: ignore metadata zone in dmz_alloc_zone()
Date: Mon, 11 May 2020 10:24:29 +0200 [thread overview]
Message-ID: <20200511082430.39455-15-hare@suse.de> (raw)
In-Reply-To: <20200511082430.39455-1-hare@suse.de>
When looking up zones in dmz_alloc_zone() we need to ignore
metadata zones so as not to accidentally overwrite metadata.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
---
drivers/md/dm-zoned-metadata.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 80c0fe4c3546..067ce010f457 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1907,7 +1907,13 @@ struct dm_zone *dmz_alloc_zone(struct dmz_metadata *zmd, unsigned long flags)
zone = NULL;
goto again;
}
+ if (dmz_is_meta(zone)) {
+ struct dmz_dev *dev = dmz_zone_to_dev(zmd, zone);
+ dmz_dev_warn(dev, "Zone %u has metadata", zone->id);
+ zone = NULL;
+ goto again;
+ }
return zone;
}
--
2.16.4
next prev parent reply other threads:[~2020-05-11 8:24 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 8:24 [PATCHv6 00/14] dm-zoned: metadata version 2 Hannes Reinecke
2020-05-11 8:24 ` [PATCH 01/15] dm-zoned: add 'status' callback Hannes Reinecke
2020-05-11 8:24 ` [PATCH 02/15] dm-zoned: add 'message' callback Hannes Reinecke
2020-05-11 8:24 ` [PATCH 03/15] dm-zoned: store zone id within the zone structure and kill dmz_id() Hannes Reinecke
2020-05-11 8:24 ` [PATCH 04/15] dm-zoned: use array for superblock zones Hannes Reinecke
2020-05-11 8:24 ` [PATCH 05/15] dm-zoned: store device in struct dmz_sb Hannes Reinecke
2020-05-11 8:24 ` [PATCH 06/15] dm-zoned: move fields from struct dmz_dev to dmz_metadata Hannes Reinecke
2020-05-11 8:24 ` [PATCH 07/15] dm-zoned: introduce dmz_metadata_label() to format device name Hannes Reinecke
2020-05-11 8:24 ` [PATCH 08/15] dm-zoned: Introduce dmz_dev_is_dying() and dmz_check_dev() Hannes Reinecke
2020-05-11 8:24 ` [PATCH 09/15] dm-zoned: remove 'dev' argument from reclaim Hannes Reinecke
2020-05-11 8:24 ` [PATCH 10/15] dm-zoned: replace 'target' pointer in the bio context Hannes Reinecke
2020-05-11 8:24 ` [PATCH 11/15] dm-zoned: use dmz_zone_to_dev() when handling metadata I/O Hannes Reinecke
2020-05-11 8:24 ` [PATCH 12/15] dm-zoned: add metadata logging functions Hannes Reinecke
2020-05-11 8:24 ` [PATCH 13/15] dm-zoned: Reduce logging output on startup Hannes Reinecke
2020-05-11 8:24 ` Hannes Reinecke [this message]
2020-05-11 8:24 ` [PATCH 15/15] dm-zoned: metadata version 2 Hannes Reinecke
2020-05-11 8:36 ` Damien Le Moal
2020-05-11 8:46 ` Hannes Reinecke
2020-05-11 8:51 ` Damien Le Moal
2020-05-11 9:18 ` Hannes Reinecke
2020-05-11 9:20 ` Damien Le Moal
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