device-mapper-multipath/0022-libmultipath-remove-unneeded-code-in-coalesce_paths.patch
Benjamin Marzinski 2d373b6820 device-mapper-multipath-0.8.6-5
Update to the head of the upstream staging branch plus redhat patches
  * Patches 0016-0018 are from the upstream staging branch
  * Patches 0019-0024 have been submitted upstream
Rename files
  * Previous patches 0016-0025 are now patches 0024-0033
2021-07-30 13:07:22 -05:00

82 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 16 Jul 2021 17:58:14 -0500
Subject: [PATCH] libmultipath: remove unneeded code in coalesce_paths
The code at the end of coalesce_paths() removes a multipath device that
was just created/reloaded, if none of its path devices have pp->dev set.
This code is very old, and no longer has any actual effect. Multipath
devices no longer get placed in pathvec without having pp->dev set. Even
if they could, there's no point in creating/reloading the device and
then immediately removing it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/configure.c | 46 ----------------------------------------
1 file changed, 46 deletions(-)
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
index eb76fbc4..df6ba725 100644
--- a/libmultipath/configure.c
+++ b/libmultipath/configure.c
@@ -1061,28 +1061,6 @@ int domap(struct multipath *mpp, char *params, int is_daemon)
return DOMAP_FAIL;
}
-static int
-deadmap (struct multipath * mpp)
-{
- int i, j;
- struct pathgroup * pgp;
- struct path * pp;
-
- if (!mpp->pg)
- return 1;
-
- vector_foreach_slot (mpp->pg, pgp, i) {
- if (!pgp->paths)
- continue;
-
- vector_foreach_slot (pgp->paths, pp, j)
- if (strlen(pp->dev))
- return 0; /* alive */
- }
-
- return 1; /* dead */
-}
-
extern int
check_daemon(void)
{
@@ -1318,30 +1296,6 @@ int coalesce_paths (struct vectors *vecs, vector mpvec, char *refwwid,
KEEP_VEC);
map_processed = true;
}
- /*
- * Flush maps with only dead paths (ie not in sysfs)
- * Keep maps with only failed paths
- */
- if (mpvec) {
- vector_foreach_slot (newmp, mpp, i) {
- char alias[WWID_SIZE];
-
- if (!deadmap(mpp))
- continue;
-
- strlcpy(alias, mpp->alias, WWID_SIZE);
-
- vector_del_slot(newmp, i);
- i--;
- remove_map(mpp, vecs->pathvec, vecs->mpvec, KEEP_VEC);
-
- if (dm_flush_map(alias))
- condlog(2, "%s: remove failed (dead)",
- alias);
- else
- condlog(2, "%s: remove (dead)", alias);
- }
- }
if (map_processed && !is_daemon && (no_daemon || !check_daemon()))
condlog(2, "multipath devices exist, but multipathd service is not running");