From 0256ba48cd2e8e7bd68bcbea5be84133f791b897 Mon Sep 17 00:00:00 2001
From: Packit Service <user-cont-team+packit-service@redhat.com>
Date: Mar 18 2021 04:20:00 +0000
Subject: Apply patch 0044-libmultipath-don-t-dlclose-tur-checker-DSO.patch


patch_name: 0044-libmultipath-don-t-dlclose-tur-checker-DSO.patch
present_in_specfile: true
location_in_specfile: 44

---

diff --git a/libmultipath/checkers.c b/libmultipath/checkers.c
index 8d2be8a..6359e5d 100644
--- a/libmultipath/checkers.c
+++ b/libmultipath/checkers.c
@@ -21,6 +21,7 @@ struct checker_class {
 	void (*reset)(void);		     /* to reset the global variables */
 	const char **msgtable;
 	short msgtable_size;
+	int keep_dso;
 };
 
 char *checker_state_names[] = {
@@ -69,7 +70,7 @@ void free_checker_class(struct checker_class *c)
 	list_del(&c->node);
 	if (c->reset)
 		c->reset();
-	if (c->handle) {
+	if (c->handle && !c->keep_dso) {
 		if (dlclose(c->handle) != 0) {
 			condlog(0, "Cannot unload checker %s: %s",
 				c->name, dlerror());
@@ -192,6 +193,13 @@ out:
 	return NULL;
 }
 
+void checker_keep_dso(struct checker * c)
+{
+	if (!c || !c->cls)
+		return;
+	c->cls->keep_dso = 1;
+}
+
 void checker_set_fd (struct checker * c, int fd)
 {
 	if (!c)
diff --git a/libmultipath/checkers.h b/libmultipath/checkers.h
index b458118..f183cff 100644
--- a/libmultipath/checkers.h
+++ b/libmultipath/checkers.h
@@ -145,6 +145,7 @@ void checker_reset (struct checker *);
 void checker_set_sync (struct checker *);
 void checker_set_async (struct checker *);
 void checker_set_fd (struct checker *, int);
+void checker_keep_dso(struct checker *c);
 void checker_enable (struct checker *);
 void checker_disable (struct checker *);
 int checker_check (struct checker *, int);
diff --git a/libmultipath/checkers/tur.c b/libmultipath/checkers/tur.c
index e886fcf..fd58d62 100644
--- a/libmultipath/checkers/tur.c
+++ b/libmultipath/checkers/tur.c
@@ -394,6 +394,7 @@ int libcheck_check(struct checker * c)
 		uatomic_set(&ct->running, 1);
 		tur_set_async_timeout(c);
 		setup_thread_attr(&attr, 32 * 1024, 1);
+		checker_keep_dso(c);
 		r = pthread_create(&ct->thread, &attr, tur_thread, ct);
 		pthread_attr_destroy(&attr);
 		if (r) {