bcachefs: kill key cache arg to bch2_assert_pos_locked()

this is an internal implementation detail - and we're improving key
cache coherency
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/btree_iter.c

@@ -325,7 +325,7 @@ static int bch2_btree_iter_verify_ret(struct btree_iter *iter, struct bkey_s_c k
 }
 
 void bch2_assert_pos_locked(struct btree_trans *trans, enum btree_id id,
-			    struct bpos pos, bool key_cache)
+			    struct bpos pos)
 {
 	bch2_trans_verify_not_unlocked(trans);
 
@@ -336,19 +336,12 @@ void bch2_assert_pos_locked(struct btree_trans *trans, enum btree_id id,
 	btree_trans_sort_paths(trans);
 
 	trans_for_each_path_inorder(trans, path, iter) {
-		int cmp = cmp_int(path->btree_id, id) ?:
-			cmp_int(path->cached, key_cache);
-
-		if (cmp > 0)
-			break;
-		if (cmp < 0)
-			continue;
-
-		if (!btree_node_locked(path, 0) ||
+		if (path->btree_id != id ||
+		    !btree_node_locked(path, 0) ||
 		    !path->should_be_locked)
 			continue;
 
-		if (!key_cache) {
+		if (!path->cached) {
 			if (bkey_ge(pos, path->l[0].b->data->min_key) &&
 			    bkey_le(pos, path->l[0].b->key.k.p))
 				return;
@@ -361,9 +354,7 @@ void bch2_assert_pos_locked(struct btree_trans *trans, enum btree_id id,
 	bch2_dump_trans_paths_updates(trans);
 	bch2_bpos_to_text(&buf, pos);
 
-	panic("not locked: %s %s%s\n",
-	      bch2_btree_id_str(id), buf.buf,
-	      key_cache ? " cached" : "");
+	panic("not locked: %s %s\n", bch2_btree_id_str(id), buf.buf);
 }
 
 #else
@@ -1482,6 +1473,14 @@ static void bch2_btree_path_to_text_short(struct printbuf *out, struct btree_tra
 		   path->level);
 	bch2_bpos_to_text(out, path->pos);
 
+	if (!path->cached && btree_node_locked(path, path->level)) {
+		prt_char(out, ' ');
+		struct btree *b = path_l(path)->b;
+		bch2_bpos_to_text(out, b->data->min_key);
+		prt_char(out, '-');
+		bch2_bpos_to_text(out, b->key.k.p);
+	}
+
 #ifdef TRACK_PATH_ALLOCATED
 	prt_printf(out, " %pS", (void *) path->ip_allocated);
 #endif

fs/bcachefs/btree_iter.h

@@ -268,12 +268,11 @@ static inline int bch2_trans_mutex_lock(struct btree_trans *trans, struct mutex
 
 #ifdef CONFIG_BCACHEFS_DEBUG
 void bch2_trans_verify_paths(struct btree_trans *);
-void bch2_assert_pos_locked(struct btree_trans *, enum btree_id,
-			    struct bpos, bool);
+void bch2_assert_pos_locked(struct btree_trans *, enum btree_id, struct bpos);
 #else
 static inline void bch2_trans_verify_paths(struct btree_trans *trans) {}
 static inline void bch2_assert_pos_locked(struct btree_trans *trans, enum btree_id id,
-					  struct bpos pos, bool key_cache) {}
+					  struct bpos pos) {}
 #endif
 
 void bch2_btree_path_fix_key_modified(struct btree_trans *trans,

fs/bcachefs/fs.c

@@ -58,9 +58,7 @@ void bch2_inode_update_after_write(struct btree_trans *trans,
 
 	BUG_ON(bi->bi_inum != inode->v.i_ino);
 
-	bch2_assert_pos_locked(trans, BTREE_ID_inodes,
-			       POS(0, bi->bi_inum),
-			       c->opts.inodes_use_key_cache);
+	bch2_assert_pos_locked(trans, BTREE_ID_inodes, POS(0, bi->bi_inum));
 
 	set_nlink(&inode->v, bch2_inode_nlink_get(bi));
 	i_uid_write(&inode->v, bi->bi_uid);