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Kernel: Protect Process::m_name with a spinlock

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This also lets us remove the `get_process_name` and `set_process_name`
syscalls from the big lock. :^)
This commit is contained in:
Sam Atkins 2023-02-04 13:01:46 +00:00 • committed by Andreas Kling
parent b26ecca970
commit fe7b08dad7
13 changed files with 102 additions and 42 deletions
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12
AK/Format.cpp
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@ -905,7 +905,9 @@ void vdbgln(StringView fmtstr, TypeErasedFormatParams& params)
struct timespec ts = TimeManagement::the().monotonic_time(TimePrecision::Coarse).to_timespec();
if (Kernel::Thread::current()) {
auto& thread = *Kernel::Thread::current();
builder.appendff("{}.{:03} \033[34;1m[#{} {}({}:{})]\033[0m: ", ts.tv_sec, ts.tv_nsec / 1000000, Kernel::Processor::current_id(), thread.process().name(), thread.pid().value(), thread.tid().value());
thread.process().name().with([&](auto& process_name) {
builder.appendff("{}.{:03} \033[34;1m[#{} {}({}:{})]\033[0m: ", ts.tv_sec, ts.tv_nsec / 1000000, Kernel::Processor::current_id(), process_name->view(), thread.pid().value(), thread.tid().value());
});
} else {
builder.appendff("{}.{:03} \033[34;1m[#{} Kernel]\033[0m: ", ts.tv_sec, ts.tv_nsec / 1000000, Kernel::Processor::current_id());
}
@ -958,7 +960,9 @@ void vdmesgln(StringView fmtstr, TypeErasedFormatParams& params)
if (Kernel::Processor::is_initialized() && Kernel::Thread::current()) {
auto& thread = *Kernel::Thread::current();
builder.appendff("{}.{:03} \033[34;1m[{}({}:{})]\033[0m: ", ts.tv_sec, ts.tv_nsec / 1000000, thread.process().name(), thread.pid().value(), thread.tid().value());
thread.process().name().with([&](auto& process_name) {
builder.appendff("{}.{:03} \033[34;1m[{}({}:{})]\033[0m: ", ts.tv_sec, ts.tv_nsec / 1000000, process_name->view(), thread.pid().value(), thread.tid().value());
});
} else {
builder.appendff("{}.{:03} \033[34;1m[Kernel]\033[0m: ", ts.tv_sec, ts.tv_nsec / 1000000);
}
@ -983,7 +987,9 @@ void v_critical_dmesgln(StringView fmtstr, TypeErasedFormatParams& params)
# ifdef AK_OS_SERENITY
if (Kernel::Processor::is_initialized() && Kernel::Thread::current()) {
auto& thread = *Kernel::Thread::current();
builder.appendff("[{}({}:{})]: ", thread.process().name(), thread.pid().value(), thread.tid().value());
thread.process().name().with([&](auto& process_name) {
builder.appendff("[{}({}:{})]: ", process_name->view(), thread.pid().value(), thread.tid().value());
});
} else {
builder.appendff("[Kernel]: ");
}