1 files changed, 32 insertions, 22 deletions
diff --git a/fs/bcachefs/reflink.c b/fs/bcachefs/reflink.c
index 441e648f28b5..710178e3da4c 100644
--- a/fs/bcachefs/reflink.c
+++ b/fs/bcachefs/reflink.c
@@ -185,12 +185,21 @@ static int bch2_indirect_extent_missing_error(struct btree_trans *trans,
 	BUG_ON(missing_start	< refd_start);
 	BUG_ON(missing_end	> refd_end);
 
-	if (fsck_err(trans, reflink_p_to_missing_reflink_v,
-		     "pointer to missing indirect extent\n"
-		     "  %s\n"
-		     "  missing range %llu-%llu",
-		     (bch2_bkey_val_to_text(&buf, c, p.s_c), buf.buf),
-		     missing_start, missing_end)) {
+	struct bpos missing_pos = bkey_start_pos(p.k);
+	missing_pos.offset += missing_start - live_start;
+
+	prt_printf(&buf, "pointer to missing indirect extent in ");
+	ret = bch2_inum_snap_offset_err_msg_trans(trans, &buf, missing_pos);
+	if (ret)
+		goto err;
+
+	prt_printf(&buf, "-%llu\n", (missing_pos.offset + (missing_end - missing_start)) << 9);
+	bch2_bkey_val_to_text(&buf, c, p.s_c);
+
+	prt_printf(&buf, "\nmissing reflink btree range %llu-%llu",
+		   missing_start, missing_end);
+
+	if (fsck_err(trans, reflink_p_to_missing_reflink_v, "%s", buf.buf)) {
 		struct bkey_i_reflink_p *new = bch2_bkey_make_mut_noupdate_typed(trans, p.s_c, reflink_p);
 		ret = PTR_ERR_OR_ZERO(new);
 		if (ret)
@@ -314,10 +323,10 @@ static int trans_trigger_reflink_p_segment(struct btree_trans *trans,
 	__le64 *refcount = bkey_refcount(bkey_i_to_s(new));
 	if (!*refcount && (flags & BTREE_TRIGGER_overwrite)) {
 		bch2_bkey_val_to_text(&buf, c, p.s_c);
-		prt_printf(&buf, "\n  ");
+		prt_newline(&buf);
 		bch2_bkey_val_to_text(&buf, c, k);
 		log_fsck_err(trans, reflink_refcount_underflow,
-			     "indirect extent refcount underflow while marking\n  %s",
+			     "indirect extent refcount underflow while marking\n%s",
 			   buf.buf);
 		goto next;
 	}
@@ -486,7 +495,7 @@ static int bch2_make_extent_indirect(struct btree_trans *trans,
 				     bool reflink_p_may_update_opts_field)
 {
 	struct bch_fs *c = trans->c;
-	struct btree_iter reflink_iter = { NULL };
+	struct btree_iter reflink_iter = {};
 	struct bkey_s_c k;
 	struct bkey_i *r_v;
 	struct bkey_i_reflink_p *r_p;
@@ -498,7 +507,7 @@ static int bch2_make_extent_indirect(struct btree_trans *trans,
 
 	bch2_trans_iter_init(trans, &reflink_iter, BTREE_ID_reflink, POS_MAX,
 			     BTREE_ITER_intent);
-	k = bch2_btree_iter_peek_prev(&reflink_iter);
+	k = bch2_btree_iter_peek_prev(trans, &reflink_iter);
 	ret = bkey_err(k);
 	if (ret)
 		goto err;
@@ -560,12 +569,13 @@ err:
 	return ret;
 }
 
-static struct bkey_s_c get_next_src(struct btree_iter *iter, struct bpos end)
+static struct bkey_s_c get_next_src(struct btree_trans *trans,
+				    struct btree_iter *iter, struct bpos end)
 {
 	struct bkey_s_c k;
 	int ret;
 
-	for_each_btree_key_max_continue_norestart(*iter, end, 0, k, ret) {
+	for_each_btree_key_max_continue_norestart(trans, *iter, end, 0, k, ret) {
 		if (bkey_extent_is_unwritten(k))
 			continue;
 
@@ -574,7 +584,7 @@ static struct bkey_s_c get_next_src(struct btree_iter *iter, struct bpos end)
 	}
 
 	if (bkey_ge(iter->pos, end))
-		bch2_btree_iter_set_pos(iter, end);
+		bch2_btree_iter_set_pos(trans, iter, end);
 	return ret ? bkey_s_c_err(ret) : bkey_s_c_null;
 }
 
@@ -597,7 +607,7 @@ s64 bch2_remap_range(struct bch_fs *c,
 	u64 dst_done = 0;
 	u32 dst_snapshot, src_snapshot;
 	bool reflink_p_may_update_opts_field =
-		bch2_request_incompat_feature(c, bcachefs_metadata_version_reflink_p_may_update_opts);
+		!bch2_request_incompat_feature(c, bcachefs_metadata_version_reflink_p_may_update_opts);
 	int ret = 0, ret2 = 0;
 
 	if (!bch2_write_ref_tryget(c, BCH_WRITE_REF_reflink))
@@ -638,27 +648,27 @@ s64 bch2_remap_range(struct bch_fs *c,
 		if (ret)
 			continue;
 
-		bch2_btree_iter_set_snapshot(&src_iter, src_snapshot);
+		bch2_btree_iter_set_snapshot(trans, &src_iter, src_snapshot);
 
 		ret = bch2_subvolume_get_snapshot(trans, dst_inum.subvol,
 						  &dst_snapshot);
 		if (ret)
 			continue;
 
-		bch2_btree_iter_set_snapshot(&dst_iter, dst_snapshot);
+		bch2_btree_iter_set_snapshot(trans, &dst_iter, dst_snapshot);
 
 		if (dst_inum.inum < src_inum.inum) {
 			/* Avoid some lock cycle transaction restarts */
-			ret = bch2_btree_iter_traverse(&dst_iter);
+			ret = bch2_btree_iter_traverse(trans, &dst_iter);
 			if (ret)
 				continue;
 		}
 
 		dst_done = dst_iter.pos.offset - dst_start.offset;
 		src_want = POS(src_start.inode, src_start.offset + dst_done);
-		bch2_btree_iter_set_pos(&src_iter, src_want);
+		bch2_btree_iter_set_pos(trans, &src_iter, src_want);
 
-		src_k = get_next_src(&src_iter, src_end);
+		src_k = get_next_src(trans, &src_iter, src_end);
 		ret = bkey_err(src_k);
 		if (ret)
 			continue;
@@ -729,7 +739,7 @@ s64 bch2_remap_range(struct bch_fs *c,
 
 	do {
 		struct bch_inode_unpacked inode_u;
-		struct btree_iter inode_iter = { NULL };
+		struct btree_iter inode_iter = {};
 
 		bch2_trans_begin(trans);
 
@@ -786,8 +796,8 @@ static int bch2_gc_write_reflink_key(struct btree_trans *trans,
 	if (fsck_err_on(r->refcount != le64_to_cpu(*refcount),
 			trans, reflink_v_refcount_wrong,
 			"reflink key has wrong refcount:\n"
-			"  %s\n"
-			"  should be %u",
+			"%s\n"
+			"should be %u",
 			(bch2_bkey_val_to_text(&buf, c, k), buf.buf),
 			r->refcount)) {
 		struct bkey_i *new = bch2_bkey_make_mut_noupdate(trans, k);