diff options
Diffstat (limited to 'kernel/futex.c')
| -rw-r--r-- | kernel/futex.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/futex.c b/kernel/futex.c index 08ec814ad9d2..16b1f2c9aaf4 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1450,6 +1450,7 @@ retry: hb2 = hash_futex(&key2); retry_private: + hb_waiters_inc(hb2); double_lock_hb(hb1, hb2); if (likely(cmpval != NULL)) { @@ -1459,6 +1460,7 @@ retry_private: if (unlikely(ret)) { double_unlock_hb(hb1, hb2); + hb_waiters_dec(hb2); ret = get_user(curval, uaddr1); if (ret) @@ -1508,6 +1510,7 @@ retry_private: break; case -EFAULT: double_unlock_hb(hb1, hb2); + hb_waiters_dec(hb2); put_futex_key(&key2); put_futex_key(&key1); ret = fault_in_user_writeable(uaddr2); @@ -1517,6 +1520,7 @@ retry_private: case -EAGAIN: /* The owner was exiting, try again. */ double_unlock_hb(hb1, hb2); + hb_waiters_dec(hb2); put_futex_key(&key2); put_futex_key(&key1); cond_resched(); @@ -1592,6 +1596,7 @@ retry_private: out_unlock: double_unlock_hb(hb1, hb2); + hb_waiters_dec(hb2); /* * drop_futex_key_refs() must be called outside the spinlocks. During |