BM_PAGE_IO_LOCK 215 drivers/block/drbd/drbd_bitmap.c wait_event(b->bm_io_wait, !test_and_set_bit(BM_PAGE_IO_LOCK, addr)); BM_PAGE_IO_LOCK 222 drivers/block/drbd/drbd_bitmap.c clear_bit_unlock(BM_PAGE_IO_LOCK, addr);