From ce930365d16356e873acd9a732ae863445b7b4e6 Mon Sep 17 00:00:00 2001
From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Sun, 4 Mar 2018 18:53:41 +0000
Subject: [PATCH] Keep the old SLAB_DESTROY_BY_RCU macro definition around in
 the LinuxKPI to avoid compilation breakage in external kernel modules.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
---
 sys/compat/linuxkpi/common/include/linux/slab.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/slab.h b/sys/compat/linuxkpi/common/include/linux/slab.h
index c4a3179a5e9..69078bd796b 100644
--- a/sys/compat/linuxkpi/common/include/linux/slab.h
+++ b/sys/compat/linuxkpi/common/include/linux/slab.h
@@ -82,6 +82,9 @@ struct linux_kmem_cache {
 #define	SLAB_TYPESAFE_BY_RCU    (1 << 1)
 #define	SLAB_RECLAIM_ACCOUNT	(1 << 2)
 
+#define	SLAB_DESTROY_BY_RCU \
+	SLAB_TYPESAFE_BY_RCU
+
 static inline gfp_t
 linux_check_m_flags(gfp_t flags)
 {