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Kernel: Use non-locking {Nonnull,}RefPtr for OpenFileDescription

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This patch switches away from {Nonnull,}LockRefPtr to the non-locking
smart pointers throughout the kernel.

I've looked at the handful of places where these were being persisted
and I don't see any race situations.

Note that the process file descriptor table (Process::m_fds) was already
guarded via MutexProtected.
This commit is contained in:
Andreas Kling 2023-03-06 19:29:25 +01:00
parent 36b0ecfe9e
commit d1371d66f7
34 changed files with 82 additions and 80 deletions
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4
Kernel/FileSystem/ProcFS/ProcessExposed.cpp
View file

@ -262,7 +262,7 @@ ErrorOr<void> Process::procfs_get_fds_stats(KBufferBuilder& builder) const
return {};
}
bool cloexec = file_description_metadata.flags() & FD_CLOEXEC;
LockRefPtr<OpenFileDescription> description = file_description_metadata.description();
auto const* description = file_description_metadata.description();
auto description_object = TRY(array.add_object());
TRY(description_object.add("fd"sv, count));
// TODO: Better OOM handling.
@ -275,7 +275,7 @@ ErrorOr<void> Process::procfs_get_fds_stats(KBufferBuilder& builder) const
TRY(description_object.add("blocking"sv, description->is_blocking()));
TRY(description_object.add("can_read"sv, description->can_read()));
TRY(description_object.add("can_write"sv, description->can_write()));
Inode* inode = description->inode();
Inode const* inode = description->inode();
if (inode != nullptr) {
auto inode_object = TRY(description_object.add_object("inode"sv));
TRY(inode_object.add("fsid"sv, inode->fsid().value()));