Move setup_thread_attr() to uevent.c

The function will be used by other instances, too, so move it
over to the library.

Signed-off-by: Hannes Reinecke <hare@suse.de>

3 files changed, 36 insertions, 27 deletions

diff --git a/libmultipath/uevent.c b/libmultipath/uevent.c
index d8f3647..0d68390 100644
--- a/libmultipath/uevent.c
+++ b/libmultipath/uevent.c
@@ -37,6 +37,7 @@
 #include <linux/types.h>
 #include <linux/netlink.h>
 #include <pthread.h>
+#include <limits.h>
 #include <sys/mman.h>
 
 #include "memory.h"
@@ -59,6 +60,30 @@ int is_uevent_busy(void)
 	return (uevqhp != NULL || servicing_uev);
 }
 
+void
+setup_thread_attr(pthread_attr_t *attr, size_t stacksize, int detached)
+{
+	if (pthread_attr_init(attr)) {
+		fprintf(stderr, "can't initialize thread attr: %s\n",
+			strerror(errno));
+		exit(1);
+	}
+	if (stacksize < PTHREAD_STACK_MIN)
+		stacksize = PTHREAD_STACK_MIN;
+
+	if (pthread_attr_setstacksize(attr, stacksize)) {
+		fprintf(stderr, "can't set thread stack size to %lu: %s\n",
+			(unsigned long)stacksize, strerror(errno));
+		exit(1);
+	}
+	if (detached && pthread_attr_setdetachstate(attr,
+						    PTHREAD_CREATE_DETACHED)) {
+		fprintf(stderr, "can't set thread to detached: %s\n",
+			strerror(errno));
+		exit(1);
+	}
+}
+
 static struct uevent * alloc_uevent (void)
 {
 	return (struct uevent *)MALLOC(sizeof(struct uevent));
@@ -142,8 +167,7 @@ int uevent_listen(int (*uev_trigger)(struct uevent *, void * trigger_data),
 	pthread_mutex_init(uevc_lockp, NULL);
 	pthread_cond_init(uev_condp, NULL);
 
-	pthread_attr_init(&attr);
-	pthread_attr_setstacksize(&attr, 64 * 1024);
+	setup_thread_attr(&attr, 64 * 1024, 0);
 	pthread_create(&uevq_thr, &attr, uevq_thread, NULL);
 
 	/*
diff --git a/libmultipath/uevent.h b/libmultipath/uevent.h
index e1a1254..0941810 100644
--- a/libmultipath/uevent.h
+++ b/libmultipath/uevent.h
@@ -1,4 +1,10 @@
-/* environment buffer, the kernel's size in lib/kobject_uevent.c should fit in */
+#ifndef _UEVENT_H
+#define _UEVENT_H
+
+/*
+ * buffer for environment variables, the kernel's size in
+ * lib/kobject_uevent.c should fit in
+*/
 #define HOTPLUG_BUFFER_SIZE		1024
 #define HOTPLUG_NUM_ENVP		32
 #define OBJECT_SIZE			512
@@ -18,3 +24,6 @@ struct uevent {
 int uevent_listen(int (*store_uev)(struct uevent *, void * trigger_data),
 		  void * trigger_data);
 int is_uevent_busy(void);
+void setup_thread_attr(pthread_attr_t *attr, size_t stacksize, int detached);
+
+#endif /* _UEVENT_H */
diff --git a/multipathd/main.c b/multipathd/main.c
index 229ab0b..769abb2 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1358,30 +1358,6 @@ set_oom_adj (int val)
 	fclose(fp);
 }
 
-void
-setup_thread_attr(pthread_attr_t *attr, size_t stacksize, int detached)
-{
-	if (pthread_attr_init(attr)) {
-		fprintf(stderr, "can't initialize thread attr: %s\n",
-			strerror(errno));
-		exit(1);
-	}
-	if (stacksize < PTHREAD_STACK_MIN)
-		stacksize = PTHREAD_STACK_MIN;
-
-	if (pthread_attr_setstacksize(attr, stacksize)) {
-		fprintf(stderr, "can't set thread stack size to %lu: %s\n",
-			(unsigned long)stacksize, strerror(errno));
-		exit(1);
-	}
-	if (detached && pthread_attr_setdetachstate(attr,
-						    PTHREAD_CREATE_DETACHED)) {
-		fprintf(stderr, "can't set thread to detached: %s\n",
-			strerror(errno));
-		exit(1);
-	}
-}
-
 static int
 child (void * param)
 {