Re: [PATCH 4.19 0/5] backport some more fscrypt fixes to 4.19

On Sat, Oct 31, 2020 at 03:05:48PM -0700, Eric Biggers wrote:

Backport some fscrypt fixes from upstream 5.2 to 4.19-stable.

This is needed to get 'kvm-xfstests -c ext4,f2fs,ubifs -g encrypt' to fully pass on 4.19-stable. Before, generic/397 and generic/429 failed on UBIFS due to missing "fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext".

This also fixes some bugs that aren't yet covered by the xfstests. E.g., "fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory" fixes a bug that caused real-world problems on Chrome OS.

Some relatively straightforward adjustments were needed to the patches, mainly due to the refactoring of fscrypt.h that was done in 5.1.

All now queued up, thanks!

greg k-h