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9201a06027
Before we start disabling acquisition of the big process lock for specific syscalls, make sure to document and assert that all the lock is held during all syscalls.
25 lines
565 B
C++
25 lines
565 B
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Process.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$disown(ProcessID pid)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(proc);
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auto process = Process::from_pid(pid);
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if (!process)
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return ESRCH;
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if (process->ppid() != this->pid())
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return ECHILD;
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ProtectedDataMutationScope scope(*process);
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process->m_ppid = 0;
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process->disowned_by_waiter(*this);
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return 0;
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}
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}
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