Btrfs: transaction rework
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 9ab27b7..7e6c08a 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -1,27 +1,30 @@
#ifndef __TRANSACTION__
#define __TRANSACTION__
+struct btrfs_transaction {
+ u64 transid;
+ unsigned long num_writers;
+ int in_commit;
+ int use_count;
+ int commit_done;
+ wait_queue_head_t writer_wait;
+ wait_queue_head_t commit_wait;
+};
+
struct btrfs_trans_handle {
u64 transid;
unsigned long blocks_reserved;
unsigned long blocks_used;
+ struct btrfs_transaction *transaction;
};
-static inline struct btrfs_trans_handle *
-btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
-{
- struct btrfs_trans_handle *h = kmalloc(sizeof(*h), GFP_NOFS);
- h->transid = root->root_key.offset;
- h->blocks_reserved = num_blocks;
- h->blocks_used = 0;
- return h;
-}
-static inline void btrfs_free_transaction(struct btrfs_root *root,
- struct btrfs_trans_handle *handle)
-{
- memset(handle, 0, sizeof(*handle));
- kfree(handle);
-}
-
+int btrfs_end_transaction(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
+ int num_blocks);
+int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
+int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
#endif