diff options
Diffstat (limited to 'fs/bcachefs/six.c')
| -rw-r--r-- | fs/bcachefs/six.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/fs/bcachefs/six.c b/fs/bcachefs/six.c index 32ad545ba570..d8f1d20f5ece 100644 --- a/fs/bcachefs/six.c +++ b/fs/bcachefs/six.c @@ -151,14 +151,6 @@ static int __do_six_trylock_type(struct six_lock *lock, atomic64_add(__SIX_VAL(write_locking, 1), &lock->state.counter); smp_mb__after_atomic(); - } else if (!(lock->state.waiters & (1 << SIX_LOCK_write))) { - atomic64_add(__SIX_VAL(waiters, 1 << SIX_LOCK_write), - &lock->state.counter); - /* - * pairs with barrier after unlock and before checking - * for readers in unlock path - */ - smp_mb__after_atomic(); } ret = !pcpu_read_count(lock); @@ -190,10 +182,9 @@ static int __do_six_trylock_type(struct six_lock *lock, if (type == SIX_LOCK_write) new.write_locking = 0; - } else if (!try && !(new.waiters & (1 << type))) - new.waiters |= 1 << type; - else - break; /* waiting bit already set */ + } else { + break; + } } while ((v = atomic64_cmpxchg_acquire(&lock->state.counter, old.v, new.v)) != old.v); |