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Kernel: Only allow looking up Mounts by InodeIdentifier

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Let's simplify the interface by not allowing lookup by Inode&.
This commit is contained in:
Andreas Kling 2021-07-11 00:50:08 +02:00
parent 6a27de2d94
commit 4238e2e9be
2 changed files with 3 additions and 23 deletions
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24
Kernel/FileSystem/VirtualFileSystem.cpp
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@ -82,7 +82,7 @@ KResult VirtualFileSystem::remount(Custody& mount_point, int new_flags)
dbgln("VirtualFileSystem: Remounting {}", mount_point.try_create_absolute_path());
Mount* mount = find_mount_for_guest(mount_point.inode());
Mount* mount = find_mount_for_guest(mount_point.inode().identifier());
if (!mount)
return ENODEV;
@ -139,15 +139,6 @@ bool VirtualFileSystem::mount_root(FileSystem& fs)
return true;
}
auto VirtualFileSystem::find_mount_for_host(Inode& inode) -> Mount*
{
for (auto& mount : m_mounts) {
if (mount.host() == &inode)
return &mount;
}
return nullptr;
}
auto VirtualFileSystem::find_mount_for_host(InodeIdentifier id) -> Mount*
{
for (auto& mount : m_mounts) {
@ -157,15 +148,6 @@ auto VirtualFileSystem::find_mount_for_host(InodeIdentifier id) -> Mount*
return nullptr;
}
auto VirtualFileSystem::find_mount_for_guest(Inode& inode) -> Mount*
{
for (auto& mount : m_mounts) {
if (&mount.guest() == &inode)
return &mount;
}
return nullptr;
}
auto VirtualFileSystem::find_mount_for_guest(InodeIdentifier id) -> Mount*
{
for (auto& mount : m_mounts) {
@ -192,7 +174,7 @@ KResult VirtualFileSystem::traverse_directory_inode(Inode& dir_inode, Function<b
// FIXME: This is now broken considering chroot and bind mounts.
bool is_root_inode = dir_inode.identifier() == dir_inode.fs().root_inode()->identifier();
if (is_root_inode && !is_vfs_root(dir_inode.identifier()) && entry.name == "..") {
auto mount = find_mount_for_guest(dir_inode);
auto mount = find_mount_for_guest(dir_inode.identifier());
VERIFY(mount);
VERIFY(mount->host());
resolved_inode = mount->host()->identifier();
@ -965,7 +947,7 @@ KResultOr<NonnullRefPtr<Custody>> VirtualFileSystem::resolve_path_without_veil(S
// See if there's something mounted on the child; in that case
// we would need to return the guest inode, not the host inode.
if (auto mount = find_mount_for_host(*child_inode)) {
if (auto mount = find_mount_for_host(child_inode->identifier())) {
child_inode = mount->guest();
mount_flags_for_child = mount->flags();
}