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Kernel: Implement FUTEX_WAKE of arbitrary count.

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Previously we just woke all waiters no matter how many were
requested. Fix this by implementing WaitQueue::wake_n(..).
This commit is contained in:
Brian Gianforcaro
2020-04-25 16:57:12 -07:00
committed by Andreas Kling
parent e8f6f655bf
commit 1f64e3eb16
3 changed files with 17 additions and 2 deletions
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3
Kernel/Process.cpp
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@@ -4636,8 +4636,7 @@ int Process::sys$futex(const Syscall::SC_futex_params* user_params)
if (value == 1) {
futex_queue(userspace_address).wake_one();
} else {
// FIXME: Wake exactly (value) waiters.
futex_queue(userspace_address).wake_all();
futex_queue(userspace_address).wake_n(value);
}
break;
}