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bcachefs: Fix a null ptr deref during journal replay

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We were calling bch2_extent_can_insert() incorrectly; it should only be
called when the extents-to-keys pass is running because that's when we
could be splitting a compressed extent. Calling bch2_extent_can_insert()
without passing in a disk reservation was causing a null ptr deref.

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 2020-04-04 13:54:19 -04:00 committed by Kent Overstreet
parent 47c46c9531
commit 75923ba7ad
1 changed files with 1 additions and 1 deletions
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2
fs/bcachefs/btree_update_leaf.c
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@ -309,7 +309,7 @@ btree_key_can_insert(struct btree_trans *trans,
if (unlikely(btree_node_old_extent_overwrite(b)))
return BTREE_INSERT_BTREE_NODE_FULL;
ret = !btree_node_is_extents(b)
ret = !(iter->flags & BTREE_ITER_IS_EXTENTS)
? BTREE_INSERT_OK
: bch2_extent_can_insert(trans, iter, insert);
if (ret)