From 44f8b313731067ffe30ce16cff00ba816e039806 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Wed, 20 Mar 2019 18:38:57 +0100 Subject: backports: Add smp_acquire__after_ctrl_dep() smp_acquire__after_ctrl_dep() was introduced in kernel 4.8 in upstream Linux commit 33ac279677d ("locking/barriers: Introduce smp_acquire__after_ctrl_dep()") and is used by backports lib-refcount.c implementation now. This just adds the default implementation to backports. Signed-off-by: Hauke Mehrtens --- backport/backport-include/asm/barrier.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'backport') diff --git a/backport/backport-include/asm/barrier.h b/backport/backport-include/asm/barrier.h index 9e1e1f11..bca05588 100644 --- a/backport/backport-include/asm/barrier.h +++ b/backport/backport-include/asm/barrier.h @@ -19,4 +19,8 @@ #define smp_mb__after_atomic smp_mb__after_clear_bit #endif +#ifndef smp_acquire__after_ctrl_dep +#define smp_acquire__after_ctrl_dep() smp_rmb() +#endif + #endif /* __BACKPORT_ASM_BARRIER_H */ -- cgit v1.2.3