diff options
Diffstat (limited to 'fs/btrfs/transaction.c')
-rw-r--r-- | fs/btrfs/transaction.c | 72 |
1 files changed, 2 insertions, 70 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 69ed5f85a38..0c53ff775b9 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -29,8 +29,6 @@ static int total_trans = 0; extern struct kmem_cache *btrfs_trans_handle_cachep; extern struct kmem_cache *btrfs_transaction_cachep; -static struct workqueue_struct *trans_wq; - #define BTRFS_ROOT_TRANS_TAG 0 #define BTRFS_ROOT_DEFRAG_TAG 1 @@ -807,81 +805,15 @@ int btrfs_clean_old_snapshots(struct btrfs_root *root) { struct list_head dirty_roots; INIT_LIST_HEAD(&dirty_roots); - +again: mutex_lock(&root->fs_info->trans_mutex); list_splice_init(&root->fs_info->dead_roots, &dirty_roots); mutex_unlock(&root->fs_info->trans_mutex); if (!list_empty(&dirty_roots)) { drop_dirty_roots(root, &dirty_roots); + goto again; } return 0; } -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) -void btrfs_transaction_cleaner(void *p) -#else -void btrfs_transaction_cleaner(struct work_struct *work) -#endif -{ -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18) - struct btrfs_fs_info *fs_info = p; -#else - struct btrfs_fs_info *fs_info = container_of(work, - struct btrfs_fs_info, - trans_work.work); - -#endif - struct btrfs_root *root = fs_info->tree_root; - struct btrfs_transaction *cur; - struct btrfs_trans_handle *trans; - unsigned long now; - unsigned long delay = HZ * 30; - int ret; - - smp_mb(); - if (root->fs_info->closing) - goto out; - - mutex_lock(&root->fs_info->trans_mutex); - cur = root->fs_info->running_transaction; - if (!cur) { - mutex_unlock(&root->fs_info->trans_mutex); - goto out; - } - now = get_seconds(); - if (now < cur->start_time || now - cur->start_time < 30) { - mutex_unlock(&root->fs_info->trans_mutex); - delay = HZ * 5; - goto out; - } - mutex_unlock(&root->fs_info->trans_mutex); - btrfs_defrag_dirty_roots(root->fs_info); - trans = btrfs_start_transaction(root, 1); - ret = btrfs_commit_transaction(trans, root); -out: - btrfs_clean_old_snapshots(root); - btrfs_transaction_queue_work(root, delay); -} - -void btrfs_transaction_queue_work(struct btrfs_root *root, int delay) -{ - if (!root->fs_info->closing) - queue_delayed_work(trans_wq, &root->fs_info->trans_work, delay); -} - -void btrfs_transaction_flush_work(struct btrfs_root *root) -{ - cancel_delayed_work(&root->fs_info->trans_work); - flush_workqueue(trans_wq); -} - -void __init btrfs_init_transaction_sys(void) -{ - trans_wq = create_workqueue("btrfs-transaction"); -} - -void btrfs_exit_transaction_sys(void) -{ - destroy_workqueue(trans_wq); -} |