RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-16 19:55:06 +00:00
Code Issues Activity Actions

Kernel: Switch process file descriptor table from spinlock to mutex

Browse source 
There's no reason for this to use a spinlock. Instead, let's allow
threads to block if someone else is using the descriptor table.
This commit is contained in:
Andreas Kling 2022-01-29 01:29:07 +01:00
parent 8ebec2938c
commit b56646e293
16 changed files with 37 additions and 37 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Kernel/Process.cpp
View file

@ -139,7 +139,7 @@ ErrorOr<NonnullRefPtr<Process>> Process::try_create_user_process(RefPtr<Thread>&
auto name = TRY(KString::try_create(parts.last()));
auto process = TRY(Process::try_create(first_thread, move(name), uid, gid, ProcessID(0), false, VirtualFileSystem::the().root_custody(), nullptr, tty));
TRY(process->m_fds.with([&](auto& fds) -> ErrorOr<void> {
TRY(process->m_fds.with_exclusive([&](auto& fds) -> ErrorOr<void> {
TRY(fds.try_resize(Process::OpenFileDescriptions::max_open()));
auto& device_to_use_as_tty = tty ? (CharacterDevice&)*tty : DeviceManagement::the().null_device();
@ -589,7 +589,7 @@ void Process::finalize()
if (m_alarm_timer)
TimerQueue::the().cancel_timer(m_alarm_timer.release_nonnull());
m_fds.with([](auto& fds) { fds.clear(); });
m_fds.with_exclusive([](auto& fds) { fds.clear(); });
m_tty = nullptr;
m_executable = nullptr;
m_cwd = nullptr;