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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2019-03-20 18:38:57 +0100 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2019-03-28 00:08:17 +0100 |
| commit | 44f8b313731067ffe30ce16cff00ba816e039806 (patch) | |
| tree | 7461ce91539c7b39757b7f298b81029649b7ffd2 | |
| parent | 258f0d5567ed0242f8161d42f7abfb0742fb4c29 (diff) | |
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 <hauke@hauke-m.de>
| -rw-r--r-- | backport/backport-include/asm/barrier.h | 4 |
1 files changed, 4 insertions, 0 deletions
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 */ |