Btrfs: Fix oopsen in extent_tree.c during enospc
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index ff3f7c2..b074ad1 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -244,7 +244,7 @@
if (search_start) {
struct btrfs_block_group_cache *shint;
shint = btrfs_lookup_block_group(info, search_start);
- if (shint->data == data) {
+ if (shint && shint->data == data) {
used = btrfs_block_group_used(&shint->item);
if (used + shint->pinned <
div_factor(shint->key.offset, factor)) {
@@ -1255,8 +1255,7 @@
struct buffer_head *buf;
ret = btrfs_alloc_extent(trans, root, root->root_key.objectid,
- 1, empty_size, hint,
- (unsigned long)-1, &ins, 0);
+ 1, empty_size, hint, (u64)-1, &ins, 0);
if (ret) {
BUG_ON(ret > 0);
return ERR_PTR(ret);