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Btrfs: balance_level checks !child after access
author
Jeff Mahoney
<jeffm@suse.com>
Thu, 12 Feb 2009 15:06:15 +0000
(10:06 -0500)
committer
Chris Mason
<chris.mason@oracle.com>
Thu, 12 Feb 2009 15:06:15 +0000
(10:06 -0500)
The BUG_ON() is in the wrong spot.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/ctree.c
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diff --git
a/fs/btrfs/ctree.c
b/fs/btrfs/ctree.c
index
35443cc
..
6674692
100644
(file)
--- a/
fs/btrfs/ctree.c
+++ b/
fs/btrfs/ctree.c
@@
-917,9
+917,9
@@
static noinline int balance_level(struct btrfs_trans_handle *trans,
/* promote the child to a root */
child = read_node_slot(root, mid, 0);
+ BUG_ON(!child);
btrfs_tree_lock(child);
btrfs_set_lock_blocking(child);
- BUG_ON(!child);
ret = btrfs_cow_block(trans, root, child, mid, 0, &child, 0);
BUG_ON(ret);