Ladybird/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-06-10 18:10:56 +09:00
Code Activity

Kernel: Make Inode::lookup() return a RefPtr<Inode>

Browse source 
Previously this API would return an InodeIdentifier, which meant that
there was a race in path resolution where an inode could be unlinked
in between finding the InodeIdentifier for a path component, and
actually resolving that to an Inode object.

Attaching a test that would quickly trip an assertion before.

Test: Kernel/path-resolution-race.cpp
This commit is contained in:
Andreas Kling 2020-02-01 09:23:46 +01:00
parent 5aa37f6f5c
commit c44b4d61f3
Notes: sideshowbarker 2024-07-19 09:44:16 +09:00
11 changed files with 50 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Kernel/FileSystem/TmpFS.h
View file

@ -77,7 +77,7 @@ public:
virtual ssize_t read_bytes(off_t, ssize_t, u8* buffer, FileDescription*) const override;
virtual InodeMetadata metadata() const override;
virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override;
virtual InodeIdentifier lookup(StringView name) override;
virtual RefPtr<Inode> lookup(StringView name) override;
virtual void flush_metadata() override;
virtual ssize_t write_bytes(off_t, ssize_t, const u8* buffer, FileDescription*) override;
virtual KResult add_child(InodeIdentifier child_id, const StringView& name, mode_t) override;