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Btrfs: Fix oopsen in extent_tree.c during enospc 

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan 2007-08-29 09:11:44 -04:00 committed by David Woodhouse
parent 4b82d6e4a5
commit e9fe395e47
1 changed files with 2 additions and 3 deletions
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5
fs/btrfs/extent-tree.c
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@ -244,7 +244,7 @@ struct btrfs_block_group_cache *btrfs_find_block_group(struct btrfs_root *root,
if (search_start) { if (search_start) {
struct btrfs_block_group_cache *shint; struct btrfs_block_group_cache *shint;
shint = btrfs_lookup_block_group(info, search_start); shint = btrfs_lookup_block_group(info, search_start);
if (shint->data == data) { if (shint && shint->data == data) {
used = btrfs_block_group_used(&shint->item); used = btrfs_block_group_used(&shint->item);
if (used + shint->pinned < if (used + shint->pinned <
div_factor(shint->key.offset, factor)) { div_factor(shint->key.offset, factor)) {
@ -1255,8 +1255,7 @@ struct buffer_head *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
struct buffer_head *buf; struct buffer_head *buf;
ret = btrfs_alloc_extent(trans, root, root->root_key.objectid, ret = btrfs_alloc_extent(trans, root, root->root_key.objectid,
1, empty_size, hint, 1, empty_size, hint, (u64)-1, &ins, 0);
(unsigned long)-1, &ins, 0);
if (ret) { if (ret) {
BUG_ON(ret > 0); BUG_ON(ret > 0);
return ERR_PTR(ret); return ERR_PTR(ret);