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Btrfs: check if leaf's parent exists before pushing items around

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During splitting a leaf, pushing items around to hopefully get some space only
works when we have a parent, ie. we have at least one sibling leaf.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Liu Bo 2013-05-22 12:07:06 +00:00 committed by Josef Bacik
parent fdd99c7294
commit 33157e05db
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/ctree.c
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@ -3986,7 +3986,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
return -EOVERFLOW;
/* first try to make some room by pushing left and right */
if (data_size) {
if (data_size && path->nodes[1]) {
wret = push_leaf_right(trans, root, path, data_size,
data_size, 0, 0);
if (wret < 0)