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Kernel: Improvements to Custody absolute path serialization

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- Renamed try_create_absolute_path() => try_serialize_absolute_path()
- Use KResultOr and TRY() to propagate errors
- Don't call this when it's only for debug logging
This commit is contained in:
Andreas Kling
2021-09-06 12:24:36 +02:00
parent f173f73f10
commit cda2b9e71c
6 changed files with 21 additions and 33 deletions
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15
Kernel/FileSystem/VirtualFileSystem.cpp
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@@ -54,9 +54,8 @@ KResult VirtualFileSystem::mount(FileSystem& fs, Custody& mount_point, int flags
{
return m_mounts.with_exclusive([&](auto& mounts) -> KResult {
auto& inode = mount_point.inode();
dbgln("VirtualFileSystem: Mounting {} at {} (inode: {}) with flags {}",
dbgln("VirtualFileSystem: Mounting {} at inode {} with flags {}",
fs.class_name(),
mount_point.try_create_absolute_path(),
inode.identifier(),
flags);
// FIXME: check that this is not already a mount point
@@ -69,7 +68,7 @@ KResult VirtualFileSystem::mount(FileSystem& fs, Custody& mount_point, int flags
KResult VirtualFileSystem::bind_mount(Custody& source, Custody& mount_point, int flags)
{
return m_mounts.with_exclusive([&](auto& mounts) -> KResult {
dbgln("VirtualFileSystem: Bind-mounting {} at {}", source.try_create_absolute_path(), mount_point.try_create_absolute_path());
dbgln("VirtualFileSystem: Bind-mounting inode {} at inode {}", source.inode().identifier(), mount_point.inode().identifier());
// FIXME: check that this is not already a mount point
Mount mount { source.inode(), mount_point, flags };
mounts.append(move(mount));
@@ -79,7 +78,7 @@ KResult VirtualFileSystem::bind_mount(Custody& source, Custody& mount_point, int
KResult VirtualFileSystem::remount(Custody& mount_point, int new_flags)
{
dbgln("VirtualFileSystem: Remounting {}", mount_point.try_create_absolute_path());
dbgln("VirtualFileSystem: Remounting inode {}", mount_point.inode().identifier());
auto* mount = find_mount_for_guest(mount_point.inode().identifier());
if (!mount)
@@ -323,9 +322,7 @@ KResult VirtualFileSystem::mknod(StringView path, mode_t mode, dev_t dev, Custod
KResultOr<NonnullRefPtr<FileDescription>> VirtualFileSystem::create(StringView path, int options, mode_t mode, Custody& parent_custody, Optional<UidAndGid> owner)
{
auto basename = KLexicalPath::basename(path);
auto parent_path = parent_custody.try_create_absolute_path();
if (!parent_path)
return ENOMEM;
auto parent_path = TRY(parent_custody.try_serialize_absolute_path());
auto full_path = KLexicalPath::try_join(parent_path->view(), basename);
if (!full_path)
return ENOMEM;
@@ -764,9 +761,7 @@ KResult VirtualFileSystem::validate_path_against_process_veil(Custody const& cus
{
if (Process::current().veil_state() == VeilState::None)
return KSuccess;
auto absolute_path = custody.try_create_absolute_path();
if (!absolute_path)
return ENOMEM;
auto absolute_path = TRY(custody.try_serialize_absolute_path());
return validate_path_against_process_veil(absolute_path->view(), options);
}