UAC_BITMASK
__u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \
__u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \
w = current_thread_info()->status & UAC_BITMASK;
w &= UAC_BITMASK;
status = (status & ~UAC_BITMASK) | w;