diff options
| -rw-r--r-- | include/linux/atomic.h | 6 | ||||
| -rw-r--r-- | libbcachefs/btree_write_buffer.c | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h index f1464cf3..2c983cd4 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -324,6 +324,12 @@ static inline s64 atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new) return atomic64_cmpxchg(v, old, new); } +static inline s64 atomic64_sub_return_release(s64 i, atomic64_t *v) +{ + smp_mb__before_atomic(); + return atomic64_sub_return(i, v); +} + #endif #endif /* __TOOLS_LINUX_ATOMIC_H */ diff --git a/libbcachefs/btree_write_buffer.c b/libbcachefs/btree_write_buffer.c index 4e6241db..76b6f2dc 100644 --- a/libbcachefs/btree_write_buffer.c +++ b/libbcachefs/btree_write_buffer.c @@ -9,6 +9,7 @@ #include "journal.h" #include "journal_reclaim.h" +#include <linux/atomic.h> #include <linux/sort.h> static int btree_write_buffered_key_cmp(const void *_l, const void *_r) |