diff options
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 3c00f967eccb..55abdf997ca5 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -45,6 +45,9 @@ static int cache_block_group(struct btrfs_root *root, u64 first_free; int found = 0; + if (!block_group) + return 0; + root = root->fs_info->extent_root; free_space_cache = &root->fs_info->free_space_cache; @@ -168,6 +171,11 @@ static u64 find_search_start(struct btrfs_root *root, u64 cache_miss = 0; int wrapped = 0; + if (!cache) { + cache = btrfs_lookup_block_group(root->fs_info, search_start); + if (!cache) + return search_start; + } again: ret = cache_block_group(root, cache); if (ret) |