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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-11-13 20:04:21 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2022-11-13 20:07:22 -0500 |
| commit | c1e4d447f6dd0ee60495b651436d2055db7777ed (patch) | |
| tree | 36a657f7018cecc6bad43e0e178ef1913154eba0 /include/linux/atomic.h | |
| parent | 980f7437e2588d100456640cb863908a3cc6fc77 (diff) | |
Update bcachefs sources to 8d3fc97ca3 bcachefs: Fixes for building in userspace
Diffstat (limited to 'include/linux/atomic.h')
| -rw-r--r-- | include/linux/atomic.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h index 38a364c0..a9852fa1 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -54,6 +54,8 @@ typedef struct { #define __ATOMIC_ADD_RETURN_RELEASE(v, p) \ __atomic_add_fetch(p, v, __ATOMIC_RELEASE) #define __ATOMIC_SUB_RETURN(v, p) __atomic_sub_fetch(p, v, __ATOMIC_RELAXED) +#define __ATOMIC_SUB_RETURN_RELEASE(v, p) \ + __atomic_sub_fetch(p, v, __ATOMIC_RELEASE) #define xchg(p, v) __atomic_exchange_n(p, v, __ATOMIC_SEQ_CST) #define xchg_acquire(p, v) __atomic_exchange_n(p, v, __ATOMIC_ACQUIRE) @@ -123,6 +125,11 @@ do { \ ({ smp_mb__before_atomic(); __ATOMIC_ADD_RETURN(i, v); }) #endif +#ifndef __ATOMIC_SUB_RETURN_RELEASE +#define __ATOMIC_SUB_RETURN_RELEASE(i, v) \ + ({ smp_mb__before_atomic(); __ATOMIC_SUB_RETURN(i, v); }) +#endif + #ifndef __ATOMIC_SUB #define __ATOMIC_SUB(i, v) __ATOMIC_SUB_RETURN(i, v) #endif @@ -164,6 +171,11 @@ static inline i_type a_type##_add_return_release(i_type i, a_type##_t *v)\ return __ATOMIC_ADD_RETURN_RELEASE(i, &v->counter); \ } \ \ +static inline i_type a_type##_sub_return_release(i_type i, a_type##_t *v)\ +{ \ + return __ATOMIC_SUB_RETURN_RELEASE(i, &v->counter); \ +} \ + \ static inline i_type a_type##_sub_return(i_type i, a_type##_t *v) \ { \ return __ATOMIC_SUB_RETURN(i, &v->counter); \ |