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bcachefs: Fix traversing to interior nodes

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NULL is used to mean "reach end of traversal" - we were only
initializing the leaf node in the iterator to the right sentinal value.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-02-18 19:29:33 -05:00 committed by Kent Overstreet
parent a9bc0a5173
commit b606c8aa56
1 changed files with 1 additions and 2 deletions
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3
fs/bcachefs/btree_iter.c
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@ -1732,8 +1732,7 @@ static inline void bch2_btree_iter_init(struct btree_trans *trans,
iter->nodes_locked = 0;
iter->nodes_intent_locked = 0;
for (i = 0; i < ARRAY_SIZE(iter->l); i++)
iter->l[i].b = NULL;
iter->l[iter->level].b = BTREE_ITER_NO_NODE_INIT;
iter->l[i].b = BTREE_ITER_NO_NODE_INIT;
prefetch(c->btree_roots[btree_id].b);
}