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btrfs-progs: impossible BUG_ON meant to test empty 

old_left_nritems is unsigned so BUG_ON(old_left_nritems < 0) is
impossible.  Presumably the BUG_ON() meant to test that it wasn't 0 so
that btrfs_item_offset_nr() doesn't get a nr of -1.

Signed-off-by: Zach Brown <zab@redhat.com>
master
Zach Brown 2013-01-22 13:58:20 -08:00
parent 7c9f323a7c
commit fd732dd81a
1 changed files with 1 additions and 1 deletions
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2
ctree.c
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@ -1960,7 +1960,7 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
btrfs_item_offset_nr(right, push_items - 1),
push_space);
old_left_nritems = btrfs_header_nritems(left);
BUG_ON(old_left_nritems < 0);
BUG_ON(old_left_nritems == 0);
old_left_item_size = btrfs_item_offset_nr(left, old_left_nritems - 1);
for (i = old_left_nritems; i < old_left_nritems + push_items; i++) {