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AK+Kernel: OOM-harden most parts of Trie

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The only part of Unveil that can't handle OOM gracefully is the
String::formatted() use in the node metadata.
This commit is contained in:
Ali Mohammad Pur 2022-02-14 16:49:53 +03:30 • committed by Idan Horowitz
parent 80e6198563
commit a1cb2c371a
9 changed files with 145 additions and 99 deletions
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4
Kernel/Process.h
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@ -521,7 +521,7 @@ private:
bool add_thread(Thread&);
bool remove_thread(Thread&);
Process(NonnullOwnPtr<KString> name, UserID, GroupID, ProcessID ppid, bool is_kernel_process, RefPtr<Custody> cwd, RefPtr<Custody> executable, TTY* tty);
Process(NonnullOwnPtr<KString> name, UserID, GroupID, ProcessID ppid, bool is_kernel_process, RefPtr<Custody> cwd, RefPtr<Custody> executable, TTY* tty, UnveilNode unveil_tree);
static ErrorOr<NonnullRefPtr<Process>> try_create(RefPtr<Thread>& first_thread, NonnullOwnPtr<KString> name, UserID, GroupID, ProcessID ppid, bool is_kernel_process, RefPtr<Custody> cwd = nullptr, RefPtr<Custody> executable = nullptr, TTY* = nullptr, Process* fork_parent = nullptr);
ErrorOr<void> attach_resources(NonnullOwnPtr<Memory::AddressSpace>&&, RefPtr<Thread>& first_thread, Process* fork_parent);
static ProcessID allocate_pid();
@ -800,7 +800,7 @@ private:
RefPtr<Timer> m_alarm_timer;
VeilState m_veil_state { VeilState::None };
UnveilNode m_unveiled_paths { "/", { .full_path = "/" } };
UnveilNode m_unveiled_paths;
OwnPtr<PerformanceEventBuffer> m_perf_event_buffer;