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Kernel: Start using StringView in the VFS class.

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The less kmalloc() we can do, the better. Calling kmalloc() disables all
interrupts while it runs, so it's directly affecting responsiveness.
This commit is contained in:
Andreas Kling 2019-04-15 14:57:27 +02:00
parent 461aa550eb
commit 13041f894f
3 changed files with 53 additions and 52 deletions
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36
Kernel/FileSystem/VirtualFileSystem.h
View file

@ -59,24 +59,24 @@ public:
~VFS();
bool mount_root(RetainPtr<FS>&&);
bool mount(RetainPtr<FS>&&, const String& path);
bool mount(RetainPtr<FS>&&, StringView path);
KResultOr<Retained<FileDescriptor>> open(RetainPtr<Device>&&, int options);
KResultOr<Retained<FileDescriptor>> open(const String& path, int options, mode_t mode, Inode& base);
KResultOr<Retained<FileDescriptor>> create(const String& path, int options, mode_t mode, Inode& base);
KResult mkdir(const String& path, mode_t mode, Inode& base);
KResult link(const String& old_path, const String& new_path, Inode& base);
KResult unlink(const String& path, Inode& base);
KResult symlink(const String& target, const String& linkpath, Inode& base);
KResult rmdir(const String& path, Inode& base);
KResult chmod(const String& path, mode_t, Inode& base);
KResultOr<Retained<FileDescriptor>> open(StringView path, int options, mode_t mode, Inode& base);
KResultOr<Retained<FileDescriptor>> create(StringView path, int options, mode_t mode, Inode& base);
KResult mkdir(StringView path, mode_t mode, Inode& base);
KResult link(StringView old_path, StringView new_path, Inode& base);
KResult unlink(StringView path, Inode& base);
KResult symlink(StringView target, StringView linkpath, Inode& base);
KResult rmdir(StringView path, Inode& base);
KResult chmod(StringView path, mode_t, Inode& base);
KResult chmod(Inode&, mode_t);
KResult chown(const String& path, uid_t, gid_t, Inode& base);
KResult access(const String& path, int mode, Inode& base);
KResult stat(const String& path, int options, Inode& base, struct stat&);
KResult utime(const String& path, Inode& base, time_t atime, time_t mtime);
KResult rename(const String& oldpath, const String& newpath, Inode& base);
KResultOr<Retained<Inode>> open_directory(const String& path, Inode& base);
KResult chown(StringView path, uid_t, gid_t, Inode& base);
KResult access(StringView path, int mode, Inode& base);
KResult stat(StringView path, int options, Inode& base, struct stat&);
KResult utime(StringView path, Inode& base, time_t atime, time_t mtime);
KResult rename(StringView oldpath, StringView newpath, Inode& base);
KResultOr<Retained<Inode>> open_directory(StringView path, Inode& base);
void register_device(Device&);
void unregister_device(Device&);
@ -103,9 +103,9 @@ private:
bool is_vfs_root(InodeIdentifier) const;
void traverse_directory_inode(Inode&, Function<bool(const FS::DirectoryEntry&)>);
InodeIdentifier old_resolve_path(const String& path, InodeIdentifier base, int& error, int options = 0, InodeIdentifier* parent_id = nullptr);
KResultOr<InodeIdentifier> resolve_path(const String& path, InodeIdentifier base, int options = 0, InodeIdentifier* parent_id = nullptr);
KResultOr<Retained<Inode>> resolve_path_to_inode(const String& path, Inode& base, RetainPtr<Inode>* parent_id = nullptr, int options = 0);
InodeIdentifier old_resolve_path(StringView path, InodeIdentifier base, int& error, int options = 0, InodeIdentifier* parent_id = nullptr);
KResultOr<InodeIdentifier> resolve_path(StringView path, InodeIdentifier base, int options = 0, InodeIdentifier* parent_id = nullptr);
KResultOr<Retained<Inode>> resolve_path_to_inode(StringView path, Inode& base, RetainPtr<Inode>* parent_id = nullptr, int options = 0);
KResultOr<InodeIdentifier> resolve_symbolic_link(InodeIdentifier base, Inode& symlink_inode);
Mount* find_mount_for_host(InodeIdentifier);