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Kernel: Make Inode::lookup() return a KResultOr<NonnullRefPtr<Inode>>

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This allows file systems to return arbitrary error codes instead of just
an Inode or not an Inode.
This commit is contained in:
Andreas Kling
2021-08-14 13:32:35 +02:00
parent 459115a59c
commit ef2720bcad
18 changed files with 83 additions and 72 deletions
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7
Kernel/FileSystem/VirtualFileSystem.cpp
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@@ -965,16 +965,17 @@ KResultOr<NonnullRefPtr<Custody>> VirtualFileSystem::resolve_path_without_veil(S
}
// Okay, let's look up this part.
auto child_inode = parent.inode().lookup(part);
if (!child_inode) {
auto child_or_error = parent.inode().lookup(part);
if (child_or_error.is_error()) {
if (out_parent) {
// ENOENT with a non-null parent custody signals to caller that
// we found the immediate parent of the file, but the file itself
// does not exist yet.
*out_parent = have_more_parts ? nullptr : &parent;
}
return ENOENT;
return child_or_error.error();
}
auto child_inode = child_or_error.release_value();
int mount_flags_for_child = parent.mount_flags();