Re: [PATCH 0/2] fs: fat: Implement FAT file rename

On Thu, Dec 12, 2024 at 11:06:27PM +0100, Burak Gerz wrote:

Hello This patch series is a first implementation for file renaming on a FAT filesystems. This implementation does a file rename only (no moving between directories) as needed by bootloaders like systemd-boot [1].

The renaming process is tried to be made as fail-safe as possible, by

1. Writing the new, empty file
2. Copying the address of the start cluster into new directory entry
3. Deleting old file

This can decay in the worst case to a hard link

Additionally, make use of the FAT file rename in /lib/efi_loader

[1] https://www.freedesktop.org/software/systemd/man/latest/systemd-boot.html#Bo...

This is useful, thanks! Can you please extend the existing tests in test/py/tests/test_fs/ to cover this as well?