btrfs_flush_state
enum btrfs_flush_state flush_state;
enum btrfs_flush_state final_state;
enum btrfs_flush_state flush;
static const enum btrfs_flush_state data_flush_states[] = {
enum btrfs_flush_state flush_state = 0;
static const enum btrfs_flush_state priority_flush_states[] = {
static const enum btrfs_flush_state evict_flush_states[] = {
const enum btrfs_flush_state *states,
enum btrfs_flush_state state, bool for_preempt)