RQ_FROM_SEQ_FILE
__acquires(&DD_DATA_FROM_RQ(RQ_FROM_SEQ_FILE(m))->lock) \
__releases(&DD_DATA_FROM_RQ(RQ_FROM_SEQ_FILE(m))->lock) \
__acquires(&DD_DATA_FROM_RQ(RQ_FROM_SEQ_FILE(m))->lock)
__releases(&DD_DATA_FROM_RQ(RQ_FROM_SEQ_FILE(m))->lock)