bcachefs: Fix btree key cache shutdown

On emergency shutdown, we might still have dirty keys in the btree key
cache that need to be cleaned up properly.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/bcachefs/btree_key_cache.c b/fs/bcachefs/btree_key_cache.c
index f2ad54d933e6..6a3d909c6d6e 100644
--- a/fs/bcachefs/btree_key_cache.c
+++ b/fs/bcachefs/btree_key_cache.c
@@ -490,6 +490,9 @@ void bch2_fs_btree_key_cache_exit(struct btree_key_cache *bc)
 	list_splice(&bc->dirty, &bc->clean);
 
 	list_for_each_entry_safe(ck, n, &bc->clean, list) {
+		bch2_journal_pin_drop(&c->journal, &ck->journal);
+		bch2_journal_preres_put(&c->journal, &ck->res);
+
 		kfree(ck->k);
 		kfree(ck);
 		bc->nr_keys--;