From: Eric Biggers <ebiggers@xxxxxxxxxx This series fixes several bugs in the fast-commit feature. Patch 6 may be the most controversial patch of this series, since it would make old kernels unable to replay fast-commit journals created by new kernels. I'd appreciate any thoughts on whether that's okay. I can drop that patch if needed. I've tested that this series doesn't introduce any regressions with 'gce-xfstests -c ext4/fast_commit -g auto'. Note that ext4/039, ext4/053, and generic/475 fail both before and after. Eric Biggers (7): ext4: disable fast-commit of encrypted dir operations ext4: don't set up encryption key during jbd2 transaction ext4: fix leaking uninitialized memory in fast-commit journal ext4: add missing validation of fast-commit record lengths ext4: fix unaligned memory access in ext4_fc_reserve_space() ext4: fix off-by-one errors in fast-commit block filling ext4: simplify fast-commit CRC calculation fs/ext4/ext4.h | 4 +- fs/ext4/fast_commit.c | 203 ++++++++++++++++++------------------ fs/ext4/fast_commit.h | 3 +- fs/ext4/namei.c | 44 ++++---- include/trace/events/ext4.h | 7 +- 5 files changed, 132 insertions(+), 129 deletions(-) base-commit: 089d1c31224e6b266ece3ee555a3ea2c9acbe5c2 -- 2.38.1
