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53 lines
1.7 KiB
53 lines
1.7 KiB
3 years ago
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: lixiaokeng <lixiaokeng@huawei.com>
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Date: Mon, 13 Sep 2021 10:43:14 +0800
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Subject: [PATCH] multipathd: fix missing persistent reseravtion for active
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path
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There are two paths(sucu as sda and adb) for one LUN. The two
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paths log in, but before the two uevents have been processed
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(for example there are many uevent), users use multipathd add
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path /dev/sda to cause mpatha and use mpathpersist -o -I to
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register prkey for mpatha. The add map uevent is after add path
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uevent, the the uevent(add sdb) will delay and missing persistent
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reseravtion check.
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Here, we add persistent reseravtion check in update_map() which
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is called ev_add_map().
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Signed-off-by: Lixiaokeng <lixiaokeng@huawei.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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multipathd/main.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/multipathd/main.c b/multipathd/main.c
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index 3aff241d..1defeaf1 100644
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--- a/multipathd/main.c
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+++ b/multipathd/main.c
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@@ -490,6 +490,8 @@ update_map (struct multipath *mpp, struct vectors *vecs, int new_map)
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{
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int retries = 3;
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char *params __attribute__((cleanup(cleanup_charp))) = NULL;
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+ struct path *pp;
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+ int i;
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retry:
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condlog(4, "%s: updating new map", mpp->alias);
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@@ -502,6 +504,15 @@ retry:
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verify_paths(mpp);
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mpp->action = ACT_RELOAD;
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+ if (mpp->prflag) {
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+ vector_foreach_slot(mpp->paths, pp, i) {
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+ if ((pp->state == PATH_UP) || (pp->state == PATH_GHOST)) {
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+ /* persistent reseravtion check*/
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+ mpath_pr_event_handle(pp);
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+ }
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+ }
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+ }
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+
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if (setup_map(mpp, ¶ms, vecs)) {
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condlog(0, "%s: failed to setup new map in update", mpp->alias);
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retries = -1;
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