NF_GET 962 drivers/md/dm-bufio.c if (nf == NF_GET) NF_GET 1007 drivers/md/dm-bufio.c if (nf == NF_GET && unlikely(test_bit(B_READING, &b->state))) NF_GET 1081 drivers/md/dm-bufio.c return new_read(c, block, NF_GET, bp);