Commit 353739f1 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: Fix btree_iter_peek_prev() at end of inode 



At the end of the inode, on an extents iterator, peek_slot() has to
advance to the next position to avoid returning a 0 size extent, which
is not allowed.

Changing iter->pos confuses peek_prev(), but we don't need to call
peek_slot() in this case.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent c4f89a1d

fs/bcachefs/btree_iter.c

+4 −1
Original line number Diff line number Diff line
@@ -2577,7 +2577,10 @@ struct bkey_s_c bch2_btree_iter_peek_prev_min(struct btree_trans *trans, struct 
					      struct bpos end)

{

	if ((iter->flags & (BTREE_ITER_is_extents|BTREE_ITER_filter_snapshots)) &&

	   !bkey_eq(iter->pos, POS_MAX)) {

	   !bkey_eq(iter->pos, POS_MAX) &&

	   !((iter->flags & BTREE_ITER_is_extents) &&

	     iter->pos.offset == U64_MAX)) {



		/*

		 * bkey_start_pos(), for extents, is not monotonically

		 * increasing until after filtering for snapshots: