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btrfs: enhance transaction abort infrastructure

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Signed-off-by: Jeff Mahoney <jeffm@suse.com>
This commit is contained in:
Jeff Mahoney 2012-03-01 17:24:58 +01:00 • committed by David Sterba
parent 4da3511342
commit 49b25e0540
8 changed files with 300 additions and 56 deletions
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50
fs/btrfs/disk-io.c
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@ -61,7 +61,6 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
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 @@ int write_ctree_super(struct btrfs_trans_handle *trans,
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 @@ static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
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);