btrfs: Add handler for invalidate page

[linux-2.6-block.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 49bc792108b9bc9e2024fa0a29e906ce8972e796..0d0f5d2a534a6ba1d4f7f251d995da65fb2b6a90 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1943,6 +1943,9 @@ struct btrfs_root {
        int send_in_progress;
        struct btrfs_subvolume_writers *subv_writers;
        atomic_t will_be_snapshoted;
+
+       /* For qgroup metadata space reserve */
+       atomic_t qgroup_meta_rsv;
 };
 
 struct btrfs_ioctl_defrag_range_args {
@@ -3449,8 +3452,9 @@ enum btrfs_reserve_flush_enum {
        BTRFS_RESERVE_FLUSH_ALL,
 };
 
-int btrfs_check_data_free_space(struct inode *inode, u64 bytes, u64 write_bytes);
-void btrfs_free_reserved_data_space(struct inode *inode, u64 bytes);
+int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len);
+int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes);
+void btrfs_free_reserved_data_space(struct inode *inode, u64 start, u64 len);
 void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
                                struct btrfs_root *root);
 void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans);
@@ -3466,8 +3470,8 @@ void btrfs_subvolume_release_metadata(struct btrfs_root *root,
                                      u64 qgroup_reserved);
 int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes);
 void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes);
-int btrfs_delalloc_reserve_space(struct inode *inode, u64 num_bytes);
-void btrfs_delalloc_release_space(struct inode *inode, u64 num_bytes);
+int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
+void btrfs_delalloc_release_space(struct inode *inode, u64 start, u64 len);
 void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type);
 struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root,
                                              unsigned short type);