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Annotation of coherent/f/usr/man/KERNEL/bread, revision 1.1

1.1     ! root        1: bbrreeaadd() -- Block-Device Routine
        !             2: 
        !             3: #iinncclluuddee <ssyyss/bbuuff.hh>
        !             4: BBUUFF *
        !             5: bbrreeaadd(_d_e_v_i_c_e, _b_n_o, _f_l_a_g)
        !             6: ddeevv_tt _d_e_v;
        !             7: ddaaddddrr_tt _b_n_o;
        !             8: 
        !             9: bbrreeaadd() reads  the block _b_n_o  into the buffer  cache.  If _f_l_a_g  is set, the
        !            10: read is synchronous  (that is, bbrreeaadd() will wait for  I/O to complete), and
        !            11: bbrreeaadd()  will return  a  pointer to  the  buffer.  Otherwise,  the read  is
        !            12: asynchronous (that  it, it returns immediately),  and bbrreeaadd() returns NULL.
        !            13: If  the  BFERR bit  is  set in  the  buffer's field  bb_ffllaagg,  a read  error
        !            14: occurred.
        !            15: 
        !            16: _S_e_e _A_l_s_o
        !            17: bblloocckk-ddeevviiccee rroouuttiinneess

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