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-rw-r--r--fs/btrfs/ctree.h29
1 files changed, 25 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 98a8738..215ef8c 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -481,7 +481,7 @@ struct btrfs_shared_data_ref {
struct btrfs_extent_inline_ref {
u8 type;
- u64 offset;
+ __le64 offset;
} __attribute__ ((__packed__));
/* old style backrefs item */
@@ -689,6 +689,7 @@ struct btrfs_space_info {
struct list_head block_groups;
spinlock_t lock;
struct rw_semaphore groups_sem;
+ atomic_t caching_threads;
};
/*
@@ -707,6 +708,9 @@ struct btrfs_free_cluster {
/* first extent starting offset */
u64 window_start;
+ /* if this cluster simply points at a bitmap in the block group */
+ bool points_to_bitmap;
+
struct btrfs_block_group_cache *block_group;
/*
* when a cluster is allocated from a block group, we put the
@@ -716,24 +720,37 @@ struct btrfs_free_cluster {
struct list_head block_group_list;
};
+enum btrfs_caching_type {
+ BTRFS_CACHE_NO = 0,
+ BTRFS_CACHE_STARTED = 1,
+ BTRFS_CACHE_FINISHED = 2,
+};
+
struct btrfs_block_group_cache {
struct btrfs_key key;
struct btrfs_block_group_item item;
+ struct btrfs_fs_info *fs_info;
spinlock_t lock;
- struct mutex cache_mutex;
u64 pinned;
u64 reserved;
u64 flags;
- int cached;
+ u64 sectorsize;
+ int extents_thresh;
+ int free_extents;
+ int total_bitmaps;
int ro;
int dirty;
+ /* cache tracking stuff */
+ wait_queue_head_t caching_q;
+ int cached;
+
struct btrfs_space_info *space_info;
/* free space cache stuff */
spinlock_t tree_lock;
- struct rb_root free_space_bytes;
struct rb_root free_space_offset;
+ u64 free_space;
/* block group cache stuff */
struct rb_node cache_node;
@@ -942,6 +959,9 @@ struct btrfs_root {
/* the node lock is held while changing the node pointer */
spinlock_t node_lock;
+ /* taken when updating the commit root */
+ struct rw_semaphore commit_root_sem;
+
struct extent_buffer *commit_root;
struct btrfs_root *log_root;
struct btrfs_root *reloc_root;
@@ -1988,6 +2008,7 @@ void btrfs_delalloc_reserve_space(struct btrfs_root *root, struct inode *inode,
u64 bytes);
void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode,
u64 bytes);
+void btrfs_free_pinned_extents(struct btrfs_fs_info *info);
/* ctree.c */
int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
int level, int *slot);
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