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| author | Chris Mason <chris.mason@oracle.com> | 2007-03-22 22:59:16 +0300 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-03-22 22:59:16 +0300 |
| commit | 79154b1b5bcf87903db7ff16a30b360b78d6fe4f (patch) | |
| tree | 7c752c350abd28060c5bd7aa364323051aecac90 /fs/btrfs/transaction.h | |
| parent | e20d96d64f9cf9288ffecc9ad4714e91c3b97ca8 (diff) | |
| download | linux-79154b1b5bcf87903db7ff16a30b360b78d6fe4f.tar.xz | |
Btrfs: transaction rework
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/transaction.h')
| -rw-r--r-- | fs/btrfs/transaction.h | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 9ab27b7491c5..7e6c08a0accd 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 |