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Kernel: Remove ProcessInspectionHandle and make Process RefCounted
By making the Process class RefCounted we don't really need ProcessInspectionHandle anymore. This also fixes some race conditions where a Process may be deleted while still being used by ProcFS. Also make sure to acquire the Process' lock when accessing regions. Last but not least, there's no reason why a thread can't be scheduled while being inspected, though in practice it won't happen anyway because the scheduler lock is held at the same time.
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13 changed files with 191 additions and 273 deletions
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@ -139,7 +139,7 @@ int Process::sys$kill(pid_t pid, int signal)
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return do_killself(signal);
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}
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ScopedSpinLock lock(g_processes_lock);
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auto* peer = Process::from_pid(pid);
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auto peer = Process::from_pid(pid);
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if (!peer)
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return -ESRCH;
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return do_kill(*peer, signal);
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