From 8b81801e2dc0bfc00a4d3de0ef52c3d600523d1c Mon Sep 17 00:00:00 2001
From: Jim Harris <james.r.harris@intel.com>
Date: Wed, 5 Jan 2022 23:02:25 +0000
Subject: [PATCH] env_dpdk: do rte_eal_cleanup() at process exit

We already use destructor functions in env_dpdk to do
some cleanup at process exit, so let's also add one
to call rte_eal_cleanup.  This ensures all hugepage
files are freed before the process exits.

Fixes issue #2267.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I8c93f503d77f35717b3d18a63ea49b31789dbc00
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10983
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
---
 lib/env_dpdk/init.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/env_dpdk/init.c b/lib/env_dpdk/init.c
index 3a77aa981a..495684a4e7 100644
--- a/lib/env_dpdk/init.c
+++ b/lib/env_dpdk/init.c
@@ -620,6 +620,15 @@ spdk_env_init(const struct spdk_env_opts *opts)
 	return rc;
 }
 
+__attribute__((destructor)) static void
+dpdk_cleanup(void)
+{
+	/* Only call rte_eal_cleanup if the SPDK env library called rte_eal_init. */
+	if (!g_external_init) {
+		rte_eal_cleanup();
+	}
+}
+
 void
 spdk_env_fini(void)
 {