bcachefs: Check for lru entries with time=0

These are invalid.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/lru.c b/fs/bcachefs/lru.c
index e16686b3b45aa00d018c068de1bb30a84b92ec43..9b4ce27d12f3094802db0e7f9aa42e008202a0fa 100644 (file)
--- a/fs/bcachefs/lru.c
+++ b/fs/bcachefs/lru.c
@@ -19,6 +19,12 @@ int bch2_lru_invalid(const struct bch_fs *c, struct bkey_s_c k,
                return -BCH_ERR_invalid_bkey;
        }
 
+       if (!k.k->p.offset) {
+               prt_printf(err, "lru entry at time=0");
+               return -BCH_ERR_invalid_bkey;
+
+       }
+
        return 0;
 }