nocow_writers     291 fs/btrfs/block-group.c 		atomic_inc(&bg->nocow_writers);
nocow_writers     307 fs/btrfs/block-group.c 	if (atomic_dec_and_test(&bg->nocow_writers))
nocow_writers     308 fs/btrfs/block-group.c 		wake_up_var(&bg->nocow_writers);
nocow_writers     319 fs/btrfs/block-group.c 	wait_var_event(&bg->nocow_writers, !atomic_read(&bg->nocow_writers));
nocow_writers     145 fs/btrfs/block-group.h 	atomic_t nocow_writers;