Btrfs: Dynamic chunk and block group allocation

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 1453d995fef..a877105f5c4 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -431,9 +431,19 @@ struct btrfs_block_group_item {
         __le64 flags;
 } __attribute__ ((__packed__));
 
+struct btrfs_space_info {
+        u64 flags;
+        u64 total_bytes;
+        u64 bytes_used;
+        u64 bytes_pinned;
+        int full;
+        struct list_head list;
+};
+
 struct btrfs_block_group_cache {
         struct btrfs_key key;
         struct btrfs_block_group_item item;
+        struct btrfs_space_info *space_info;
         u64 pinned;
         u64 flags;
         int cached;
@@ -490,7 +500,7 @@ struct btrfs_fs_info {
         struct list_head dirty_cowonly_roots;
 
         struct list_head devices;
-        struct list_head *last_device;
+        struct list_head space_info;
         spinlock_t delalloc_lock;
         spinlock_t new_trans_lock;
         u64 delalloc_bytes;