| Message ID | 20190326151138.4141-2-hauke@hauke-m.de (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [1/4] backports: Add rhashtable_lookup_get_insert_fast() | expand |
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 */
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 <hauke@hauke-m.de> --- backport/backport-include/asm/barrier.h | 4 ++++ 1 file changed, 4 insertions(+)