btrfsic_submit_bh 10 fs/btrfs/check-integrity.h int btrfsic_submit_bh(int op, int op_flags, struct buffer_head *bh); btrfsic_submit_bh 3542 fs/btrfs/disk-io.c ret = btrfsic_submit_bh(REQ_OP_WRITE, op_flags, bh);