From 2b415f2c89f1252b4f8745458b0542066c8cd752 Mon Sep 17 00:00:00 2001
From: Sebastian Basierski <sebastianx.basierski@intel.com>
Date: Wed, 22 Nov 2017 15:36:48 +0100
Subject: [PATCH] vhost: Reduces size of vhost app coredump file.

Fixes #215

Change-Id: Ib65d9479e87c6007fa903b02a37d82e3d319e290
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Reviewed-on: https://review.gerrithub.io/388615
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
---
 lib/vhost/rte_vhost/vhost_user.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/vhost/rte_vhost/vhost_user.c b/lib/vhost/rte_vhost/vhost_user.c
index 8b1217e3e6..6827b5549f 100644
--- a/lib/vhost/rte_vhost/vhost_user.c
+++ b/lib/vhost/rte_vhost/vhost_user.c
@@ -612,6 +612,11 @@ vhost_setup_mem_table(struct virtio_net *dev)
 			goto err_mmap;
 		}
 
+		if (madvise(mmap_addr, mmap_size, MADV_DONTDUMP) != 0) {
+			RTE_LOG(INFO, VHOST_CONFIG,
+				"MADV_DONTDUMP advice setting failed.\n");
+		}
+
 		reg->mmap_addr = mmap_addr;
 		reg->mmap_size = mmap_size;
 		reg->host_user_addr = (uint64_t)(uintptr_t)mmap_addr +