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List: dm-devel
Subject: [dm-devel] [PATCH 49/57] multipathd: do not flush maps on startup
From: Hannes Reinecke <hare () suse ! de>
Date: 2016-04-27 11:10:50
Message-ID: 1461755458-29225-50-git-send-email-hare () suse ! de
[Download RAW message or body]
When the daemon is started prior to udev the paths are not present
(yet). However, the maps themselves will be read from device-mapper.
This causes existing maps to be dropped in coalesce_maps(), only
to be reinstated later when all paths are discovered.
To avoid this we should be checking for a valid hardware entry
per multipath map; if there is none we're in startup and shouldn't
drop any maps.
Signed-off-by: Hannes Reinecke <hare@suse.com>
---
multipathd/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 1141fb6..33a3503 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -155,7 +155,7 @@ coalesce_maps(struct vectors *vecs, vector nmpv)
vector_foreach_slot (ompv, ompp, i) {
condlog(3, "%s: coalesce map", ompp->alias);
- if (!find_mp_by_wwid(nmpv, ompp->wwid)) {
+ if (ompp->hwe && !find_mp_by_wwid(nmpv, ompp->wwid)) {
/*
* remove all current maps not allowed by the
* current configuration
--
2.6.6
--
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