1 files changed, 8 insertions, 6 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 3b859a3e6a0e..3be57c611040 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -755,6 +755,8 @@ struct btrfs_space_info {
                                    chunks for this space */
         unsigned int chunk_alloc:1;     /* set if we are allocating a chunk */
 
+        unsigned int flush:1;           /* set if we are trying to make space */
+
         unsigned int force_alloc;       /* set if we need to force a chunk
                                            alloc for this space */
 
@@ -764,7 +766,7 @@ struct btrfs_space_info {
         struct list_head block_groups[BTRFS_NR_RAID_TYPES];
         spinlock_t lock;
         struct rw_semaphore groups_sem;
-        atomic_t caching_threads;
+        wait_queue_head_t wait;
 };
 
 struct btrfs_block_rsv {
@@ -824,6 +826,7 @@ struct btrfs_caching_control {
         struct list_head list;
         struct mutex mutex;
         wait_queue_head_t wait;
+        struct btrfs_work work;
         struct btrfs_block_group_cache *block_group;
         u64 progress;
         atomic_t count;
@@ -1032,6 +1035,8 @@ struct btrfs_fs_info {
         struct btrfs_workers endio_write_workers;
         struct btrfs_workers endio_freespace_worker;
         struct btrfs_workers submit_workers;
+        struct btrfs_workers caching_workers;
+
         /*
          * fixup workers take dirty pages that didn't properly go through
          * the cow mechanism and make them safe to write.  It happens
@@ -2128,7 +2133,7 @@ static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
 
 /* extent-tree.c */
 static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_root *root,
-                                                 int num_items)
+                                                 unsigned num_items)
 {
         return (root->leafsize + root->nodesize * (BTRFS_MAX_LEVEL - 1)) *
                 3 * num_items;
@@ -2222,9 +2227,6 @@ void btrfs_set_inode_space_info(struct btrfs_root *root, struct inode *ionde);
 void btrfs_clear_space_info_full(struct btrfs_fs_info *info);
 int btrfs_check_data_free_space(struct inode *inode, u64 bytes);
 void btrfs_free_reserved_data_space(struct inode *inode, u64 bytes);
-int btrfs_trans_reserve_metadata(struct btrfs_trans_handle *trans,
-                                struct btrfs_root *root,
-                                int num_items);
 void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
                                 struct btrfs_root *root);
 int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans,
@@ -2330,7 +2332,7 @@ struct btrfs_path *btrfs_alloc_path(void);
 void btrfs_free_path(struct btrfs_path *p);
 void btrfs_set_path_blocking(struct btrfs_path *p);
 void btrfs_clear_path_blocking(struct btrfs_path *p,
-                               struct extent_buffer *held);
+                               struct extent_buffer *held, int held_rw);
 void btrfs_unlock_up_safe(struct btrfs_path *p, int level);
 
 int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,