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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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8
Kernel/FileSystem/VirtualFileSystem.h
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@@ -59,10 +59,10 @@ public:
ErrorOr<void> remount(Custody& mount_point, int new_flags);
ErrorOr<void> unmount(Custody& mount_point);
ErrorOr<NonnullLockRefPtr<OpenFileDescription>> open(Credentials const&, StringView path, int options, mode_t mode, Custody& base, Optional<UidAndGid> = {});
ErrorOr<NonnullLockRefPtr<OpenFileDescription>> open(Process const&, Credentials const&, StringView path, int options, mode_t mode, Custody& base, Optional<UidAndGid> = {});
ErrorOr<NonnullLockRefPtr<OpenFileDescription>> create(Credentials const&, StringView path, int options, mode_t mode, Custody& parent_custody, Optional<UidAndGid> = {});
ErrorOr<NonnullLockRefPtr<OpenFileDescription>> create(Process const&, Credentials const&, StringView path, int options, mode_t mode, Custody& parent_custody, Optional<UidAndGid> = {});
ErrorOr<NonnullRefPtr<OpenFileDescription>> open(Credentials const&, StringView path, int options, mode_t mode, Custody& base, Optional<UidAndGid> = {});
ErrorOr<NonnullRefPtr<OpenFileDescription>> open(Process const&, Credentials const&, StringView path, int options, mode_t mode, Custody& base, Optional<UidAndGid> = {});
ErrorOr<NonnullRefPtr<OpenFileDescription>> create(Credentials const&, StringView path, int options, mode_t mode, Custody& parent_custody, Optional<UidAndGid> = {});
ErrorOr<NonnullRefPtr<OpenFileDescription>> create(Process const&, Credentials const&, StringView path, int options, mode_t mode, Custody& parent_custody, Optional<UidAndGid> = {});
ErrorOr<void> mkdir(Credentials const&, StringView path, mode_t mode, Custody& base);
ErrorOr<void> link(Credentials const&, StringView old_path, StringView new_path, Custody& base);
ErrorOr<void> unlink(Credentials const&, StringView path, Custody& base);