From 31b463b833d0c70eca1f727bd6dfe269e2348e69 Mon Sep 17 00:00:00 2001
From: Honggang Li <honli@redhat.com>
Date: Fri, 31 Jan 2020 15:09:10 +0800
Subject: [PATCH] workaround for librdmacm resource leak

librdmacm was designed to open all verbs devices and keeps them open
until the library unloads. In case librdmacm only unload when process
exit, the resource allocated for opened verbs devices will free by OS.
If dlclose called to unload librdmacm, those resource will be leak.

Repeatedly load and unload librdmacm with dlopen and dlclose, will
significantly magnify the resource leak issue.

Signed-off-by: Honggang Li <honli@redhat.com>
---
 dat/udat/linux/dat_osd.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/dat/udat/linux/dat_osd.c b/dat/udat/linux/dat_osd.c
index cbb95ba..f93726f 100644
--- a/dat/udat/linux/dat_osd.c
+++ b/dat/udat/linux/dat_osd.c
@@ -172,12 +172,5 @@ DAT_RETURN
 dat_os_library_unload (
     const DAT_OS_LIBRARY_HANDLE library_handle)
 {
-    if ( 0 != dlclose (library_handle) )
-    {
-	return DAT_INTERNAL_ERROR;
-    }
-    else
-    {
-	return DAT_SUCCESS;
-    }
+    return DAT_SUCCESS;
 }
-- 
2.24.1