bcachefs: Fix infinite loop in backpointers fsck on upgradebcachefs-testing

On upgrade from before bcachefs_metadata_version_backpointer_bucket_gen
we'll typically skip the write buffer flush, because we expect many
invalid/missing backpointers and it's faster to just repair them.

When we find backpointers that sum up to more than the bucket sector
counters, that's a special situation - we need to walk those
backpointers to kill the bad ones, and so that case needs a write buffer
flush to avoid an infinite loop.

Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

0 files changed, 0 insertions, 0 deletions