btrfs: enhance transaction abort infrastructure
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 69ef456..6297a03 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -61,7 +61,6 @@
int mark);
static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
struct extent_io_tree *pinned_extents);
-static int btrfs_cleanup_transaction(struct btrfs_root *root);
/*
* end_io_wq structs are used to do processing in task context when an IO is
@@ -2896,6 +2895,19 @@
return ret;
}
+/* Kill all outstanding I/O */
+void btrfs_abort_devices(struct btrfs_root *root)
+{
+ struct list_head *head;
+ struct btrfs_device *dev;
+ mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ head = &root->fs_info->fs_devices->devices;
+ list_for_each_entry_rcu(dev, head, dev_list) {
+ blk_abort_queue(dev->bdev->bd_disk->queue);
+ }
+ mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+}
+
void btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
{
spin_lock(&fs_info->fs_roots_radix_lock);
@@ -3536,13 +3548,43 @@
return 0;
}
-static int btrfs_cleanup_transaction(struct btrfs_root *root)
+void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
+ struct btrfs_root *root)
+{
+ btrfs_destroy_delayed_refs(cur_trans, root);
+ btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv,
+ cur_trans->dirty_pages.dirty_bytes);
+
+ /* FIXME: cleanup wait for commit */
+ cur_trans->in_commit = 1;
+ cur_trans->blocked = 1;
+ if (waitqueue_active(&root->fs_info->transaction_blocked_wait))
+ wake_up(&root->fs_info->transaction_blocked_wait);
+
+ cur_trans->blocked = 0;
+ if (waitqueue_active(&root->fs_info->transaction_wait))
+ wake_up(&root->fs_info->transaction_wait);
+
+ cur_trans->commit_done = 1;
+ if (waitqueue_active(&cur_trans->commit_wait))
+ wake_up(&cur_trans->commit_wait);
+
+ btrfs_destroy_pending_snapshots(cur_trans);
+
+ btrfs_destroy_marked_extents(root, &cur_trans->dirty_pages,
+ EXTENT_DIRTY);
+
+ /*
+ memset(cur_trans, 0, sizeof(*cur_trans));
+ kmem_cache_free(btrfs_transaction_cachep, cur_trans);
+ */
+}
+
+int btrfs_cleanup_transaction(struct btrfs_root *root)
{
struct btrfs_transaction *t;
LIST_HEAD(list);
- WARN_ON(1);
-
mutex_lock(&root->fs_info->transaction_kthread_mutex);
spin_lock(&root->fs_info->trans_lock);