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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Benjamin Marzinski <bmarzins@redhat.com>
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Date: Mon, 13 Jul 2020 15:41:15 -0500
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Subject: [PATCH] multipath: deal with failures flushing maps
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dm_flush_maps() was failing if there were no device-mapper devices at
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all, instead of returning success, since there is nothing to do.
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delegate_to_multipathd() was returning success, even if the multipathd
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command failed. Also, if the command was set to fail with NOT_DELEGATED,
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it shouldn't print any errors, since multipath will try to issue to
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command itself.
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/devmapper.c | 2 +-
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multipath/main.c | 9 ++++++---
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2 files changed, 7 insertions(+), 4 deletions(-)
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diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
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index 91ff0b3d..3f70e576 100644
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--- a/libmultipath/devmapper.c
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+++ b/libmultipath/devmapper.c
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@@ -970,10 +970,10 @@ int dm_flush_maps (int need_suspend, int retries)
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if (!(names = dm_task_get_names (dmt)))
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goto out;
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+ r = 0;
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if (!names->dev)
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goto out;
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- r = 0;
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do {
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if (need_suspend)
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r |= dm_suspend_and_flush_map(names->name, retries);
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diff --git a/multipath/main.c b/multipath/main.c
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index 3c3d2398..607cada2 100644
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--- a/multipath/main.c
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+++ b/multipath/main.c
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@@ -869,9 +869,12 @@ int delegate_to_multipathd(enum mpath_cmds cmd,
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goto out;
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}
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- if (reply != NULL && *reply != '\0' && strcmp(reply, "ok\n"))
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- printf("%s", reply);
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- r = DELEGATE_OK;
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+ if (reply != NULL && *reply != '\0') {
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+ if (strcmp(reply, "fail\n"))
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+ r = DELEGATE_OK;
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+ if (r != NOT_DELEGATED && strcmp(reply, "ok\n"))
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+ printf("%s", reply);
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+ }
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out:
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FREE(reply);
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--
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2.17.2
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