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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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@ -303,7 +303,7 @@ int TTY::ioctl(FileDescription&, unsigned request, FlatPtr arg)
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return -EINVAL;
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{
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InterruptDisabler disabler;
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auto* process = Process::from_pid(pgid);
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auto process = Process::from_pid(pgid);
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if (!process)
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return -EPERM;
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if (pgid != process->pgid())
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