import device-mapper-multipath-0.8.4-28.el8_7.3
This commit is contained in:
CentOS Sources
Stepan Oksanichenko
parent
ddd9059e05
commit
32d1b0b0f4
215
SOURCES/0112-libmultipath-copy-mpp-hwe-from-pp-hwe.patch
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215
SOURCES/0112-libmultipath-copy-mpp-hwe-from-pp-hwe.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Wed, 16 Sep 2020 22:22:36 +0200
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Subject: [PATCH] libmultipath: copy mpp->hwe from pp->hwe
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Since f0462f0 ("libmultipath: use vector for for pp->hwe and mp->hwe"),
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we've been trying to fix issues caused by paths getting freed and mpp->hwe
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dangling. This approach couldn't work because we need mpp->hwe to persist,
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even if all paths are removed from the map. Before f0462f0, a simple
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assignment worked, because the lifetime of the hwe wasn't bound to the
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path. But now, we need to copy the vector. It turns out that we need to set
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mpp->hwe only in two places, add_map_with_path() and setup_map(), and
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that the code is simplified overall.
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Even now, it can happen that a map is added with add_map_without_paths(),
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and has no paths. In that case, calling do_set_from_hwe() with a NULL
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pointer is not a bug, so remove the message.
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Fixes: f0462f0 ("libmultipath: use vector for for pp->hwe and mp->hwe")
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Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/configure.c | 8 ++++++++
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libmultipath/propsel.c | 2 +-
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libmultipath/structs.c | 15 ++++++++++++++
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libmultipath/structs.h | 1 +
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libmultipath/structs_vec.c | 41 +++++++++++++++++++-------------------
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multipathd/main.c | 10 ----------
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6 files changed, 45 insertions(+), 32 deletions(-)
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diff --git a/libmultipath/configure.c b/libmultipath/configure.c
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index 6cad0468..cd810ba0 100644
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--- a/libmultipath/configure.c
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+++ b/libmultipath/configure.c
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@@ -314,6 +314,14 @@ int setup_map(struct multipath *mpp, char *params, int params_size,
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if (mpp->disable_queueing && VECTOR_SIZE(mpp->paths) != 0)
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mpp->disable_queueing = 0;
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+ /*
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+ * If this map was created with add_map_without_path(),
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+ * mpp->hwe might not be set yet.
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+ */
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+ if (!mpp->hwe)
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+ extract_hwe_from_path(mpp);
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+
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+
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/*
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* properties selectors
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*
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diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
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index be79902f..3764398e 100644
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--- a/libmultipath/propsel.c
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+++ b/libmultipath/propsel.c
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@@ -65,7 +65,7 @@ do { \
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__do_set_from_vec(struct hwentry, var, (src)->hwe, dest)
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#define do_set_from_hwe(var, src, dest, msg) \
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- if (__do_set_from_hwe(var, src, dest)) { \
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+ if (src->hwe && __do_set_from_hwe(var, src, dest)) { \
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origin = msg; \
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goto out; \
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}
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diff --git a/libmultipath/structs.c b/libmultipath/structs.c
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index 9f86eb69..8316cde0 100644
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--- a/libmultipath/structs.c
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+++ b/libmultipath/structs.c
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@@ -235,6 +235,17 @@ alloc_multipath (void)
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return mpp;
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}
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+void *set_mpp_hwe(struct multipath *mpp, const struct path *pp)
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+{
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+ if (!mpp || !pp || !pp->hwe)
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+ return NULL;
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+ if (mpp->hwe)
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+ return mpp->hwe;
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+ mpp->hwe = vector_convert(NULL, pp->hwe,
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+ struct hwentry, identity);
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+ return mpp->hwe;
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+}
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+
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void free_multipath_attributes(struct multipath *mpp)
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{
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if (!mpp)
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@@ -276,6 +287,10 @@ free_multipath (struct multipath * mpp, enum free_path_mode free_paths)
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free_pathvec(mpp->paths, free_paths);
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free_pgvec(mpp->pg, free_paths);
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+ if (mpp->hwe) {
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+ vector_free(mpp->hwe);
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+ mpp->hwe = NULL;
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+ }
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FREE_PTR(mpp->mpcontext);
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FREE(mpp);
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}
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diff --git a/libmultipath/structs.h b/libmultipath/structs.h
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index 3ed5cfc1..7bfc5b95 100644
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--- a/libmultipath/structs.h
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+++ b/libmultipath/structs.h
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@@ -481,6 +481,7 @@ struct host_group {
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struct path * alloc_path (void);
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struct pathgroup * alloc_pathgroup (void);
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struct multipath * alloc_multipath (void);
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+void *set_mpp_hwe(struct multipath *mpp, const struct path *pp);
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void free_path (struct path *);
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void free_pathvec (vector vec, enum free_path_mode free_paths);
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void free_pathgroup (struct pathgroup * pgp, enum free_path_mode free_paths);
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diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
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index 8137ea21..5156c584 100644
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--- a/libmultipath/structs_vec.c
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+++ b/libmultipath/structs_vec.c
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@@ -173,24 +173,24 @@ extract_hwe_from_path(struct multipath * mpp)
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if (mpp->hwe || !mpp->paths)
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return;
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- condlog(3, "%s: searching paths for valid hwe", mpp->alias);
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+ condlog(4, "%s: searching paths for valid hwe", mpp->alias);
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/* doing this in two passes seems like paranoia to me */
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vector_foreach_slot(mpp->paths, pp, i) {
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- if (pp->state != PATH_UP)
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- continue;
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- if (pp->hwe) {
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- mpp->hwe = pp->hwe;
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- return;
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- }
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+ if (pp->state == PATH_UP && pp->hwe)
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+ goto done;
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}
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vector_foreach_slot(mpp->paths, pp, i) {
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- if (pp->state == PATH_UP)
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- continue;
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- if (pp->hwe) {
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- mpp->hwe = pp->hwe;
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- return;
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- }
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+ if (pp->state != PATH_UP && pp->hwe)
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+ goto done;
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}
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+done:
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+ if (i < VECTOR_SIZE(mpp->paths))
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+ (void)set_mpp_hwe(mpp, pp);
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+
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+ if (mpp->hwe)
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+ condlog(3, "%s: got hwe from path %s", mpp->alias, pp->dev);
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+ else
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+ condlog(2, "%s: no hwe found", mpp->alias);
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}
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int
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@@ -438,9 +438,15 @@ struct multipath *add_map_with_path(struct vectors *vecs, struct path *pp,
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conf = get_multipath_config();
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mpp->mpe = find_mpe(conf->mptable, pp->wwid);
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- mpp->hwe = pp->hwe;
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put_multipath_config(conf);
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+ /*
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+ * We need to call this before select_alias(),
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+ * because that accesses hwe properties.
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+ */
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+ if (pp->hwe && !set_mpp_hwe(mpp, pp))
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+ goto out;
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+
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strcpy(mpp->wwid, pp->wwid);
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find_existing_alias(mpp, vecs);
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if (select_alias(conf, mpp))
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@@ -490,12 +496,6 @@ int verify_paths(struct multipath *mpp, struct vectors *vecs)
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vector_del_slot(mpp->paths, i);
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i--;
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- /* Make sure mpp->hwe doesn't point to freed memory.
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- * We call extract_hwe_from_path() below to restore
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- * mpp->hwe
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- */
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- if (mpp->hwe == pp->hwe)
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- mpp->hwe = NULL;
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if ((j = find_slot(vecs->pathvec,
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(void *)pp)) != -1)
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vector_del_slot(vecs->pathvec, j);
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@@ -505,7 +505,6 @@ int verify_paths(struct multipath *mpp, struct vectors *vecs)
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mpp->alias, pp->dev, pp->dev_t);
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}
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}
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- extract_hwe_from_path(mpp);
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return count;
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}
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diff --git a/multipathd/main.c b/multipathd/main.c
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index 7cdab5a0..8f4ba8ec 100644
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--- a/multipathd/main.c
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+++ b/multipathd/main.c
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@@ -1174,13 +1174,6 @@ ev_remove_path (struct path *pp, struct vectors * vecs, int need_do_map)
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goto fail;
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}
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- /*
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- * Make sure mpp->hwe doesn't point to freed memory
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- * We call extract_hwe_from_path() below to restore mpp->hwe
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- */
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- if (mpp->hwe == pp->hwe)
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- mpp->hwe = NULL;
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-
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if ((i = find_slot(mpp->paths, (void *)pp)) != -1)
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vector_del_slot(mpp->paths, i);
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@@ -1214,9 +1207,6 @@ ev_remove_path (struct path *pp, struct vectors * vecs, int need_do_map)
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*/
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}
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- if (mpp->hwe == NULL)
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- extract_hwe_from_path(mpp);
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-
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if (setup_map(mpp, params, PARAMS_SIZE, vecs)) {
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condlog(0, "%s: failed to setup map for"
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" removal of path %s", mpp->alias, pp->dev);
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@ -1,7 +1,7 @@
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Summary: Tools to manage multipath devices using device-mapper
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Summary: Tools to manage multipath devices using device-mapper
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Name: device-mapper-multipath
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Name: device-mapper-multipath
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Version: 0.8.4
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Version: 0.8.4
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Release: 28%{?dist}.1
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Release: 28%{?dist}.3
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License: GPLv2
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License: GPLv2
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Group: System Environment/Base
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Group: System Environment/Base
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URL: http://christophe.varoqui.free.fr/
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URL: http://christophe.varoqui.free.fr/
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@ -122,6 +122,7 @@ Patch00108: 0108-multipathd-Add-missing-ctype-include.patch
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Patch00109: 0109-multipathd-replace-libreadline-with-libedit.patch
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Patch00109: 0109-multipathd-replace-libreadline-with-libedit.patch
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Patch00110: 0110-multipath-fix-systemd-timers-in-the-initramfs.patch
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Patch00110: 0110-multipath-fix-systemd-timers-in-the-initramfs.patch
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Patch00111: 0111-multipathd-ignore-duplicated-multipathd-command-keys.patch
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Patch00111: 0111-multipathd-ignore-duplicated-multipathd-command-keys.patch
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Patch00112: 0112-libmultipath-copy-mpp-hwe-from-pp-hwe.patch
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# runtime
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# runtime
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Requires: %{name}-libs = %{version}-%{release}
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Requires: %{name}-libs = %{version}-%{release}
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@ -324,6 +325,14 @@ fi
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%{_pkgconfdir}/libdmmp.pc
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%{_pkgconfdir}/libdmmp.pc
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%changelog
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%changelog
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* Tue Jan 17 2023 Benjamin Marzinski <bmarzins@redhat.com> 0.8.4-28.3
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- Add 0112-libmultipath-copy-mpp-hwe-from-pp-hwe.patch
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- Resolves: bz #2161393
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* Thu Oct 20 2022 Benjamin Marzinski <bmarzins@redhat.com> 0.8.4-28.2
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- Rebuild for rhel-8.7.0
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- Related: bz #2133995
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* Thu Oct 13 2022 Benjamin Marzinski <bmarzins@redhat.com> 0.8.4-28.1
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* Thu Oct 13 2022 Benjamin Marzinski <bmarzins@redhat.com> 0.8.4-28.1
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- Add 0111-multipathd-ignore-duplicated-multipathd-command-keys.patch
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- Add 0111-multipathd-ignore-duplicated-multipathd-command-keys.patch
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- Resolves: bz #2133995
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- Resolves: bz #2133995
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