Linus Torvalds uses Claude Code to fix Linux page cache
The gist
Linux creator Linus Torvalds used Anthropic's Claude Code to write 8 page-cache patches claiming 3x tiny-read throughput.
The series is unmerged; reviewers already found a race condition.
How it unfolded
- Oct 10, 2026Torvalds submitted a change titled "mm: read from the page cache without folio references" in his own Linux kernel repository, an experimental scheme of 8 patches.
- Oct 12, 2026He posted the patch series to the Linux kernel mailing list and pushed a branch named noref-filemap-read-with-llm to his own repository; Phoronix spotted it while the kernel awaited the Linux 7.3-rc7 tag.
- Oct 13, 2026Torvalds said Claude Code was used for the patch series, which targets page-cache contention and triple tiny-read throughput.