LinPageLock()???????

我的代码是：
ReadNode->lpOverlapped = LinPageLock( PAGENUM(p->dioc_ovrlp),
          _NPAGES_(p->dioc_ovrlp,sizeof(OVERLAPPED)),
 PAGEMAPGLOBAL
       );
ReadNode->UnlpOverlapped = (OVERLAPPED*) (ReadNode->lpOverlapped + ((ULONG)p->dioc_ovrlp & 0xffff));

是要维护一个队列，可是总是出错！！
 error C2146: syntax error : missing \')\' before identifier \'p\'
.\\firewall.c(237) : error C2066: cast to function type is illegal
.\\firewall.c(237) : error C2146: syntax error : missing \')\' before identifier \'p\'
.\\firewall.c(237) : error C2296: \'>>\' : illegal, left operand has type \'unsigned long (__cdecl *)()\'
.\\firewall.c(237) : error C2198: \'LOCK__LinPageLock\' : too few actual parameters
.\\firewall.c(238) : error C2061: syntax error : identifier \'p\'
NMAKE : fatal error U1077: \'D:\\PROGRA~1\\MICROS~1\\VC98\\bin\\CL.exe\' : return code \'0x2\'
Stop.

工具:VtoolsD3.0+VC6.0

那位大侠一定要看看！！

唉！太马虎了！
把(((ULONG)p) >> 12)写成了(((ULONG)p) >> 12)
看来以后要少提问，多看代码呀！！！

唉！太马虎了！
把(((ULONG)p) >> 12)写成了(((ULONG)p) >> 12)
看来以后要少提问，多看代码呀！！！
分怎么办，可以收回吗？？

你的p->dioc_ovrlp是从应用层传下来的缓冲区吧，
ring3的线性地址不能直接锁定的，需要先转换成ring0的线性地址的。
如：
DWORD MyPageLock(DWORD lpMem, DWORD cbSize)
{
    DWORD LinPageNum = 0,
          LinOffset  = 0,
          nPages     = 0;

    LinOffset  = (DWORD)lpMem & 0xfff;// page offset of memory to map
    LinPageNum = (DWORD)lpMem >> 12;  // generate page number

    // Calculate # of pages to map globally
    nPages = (((DWORD)lpMem + cbSize) >> 12) - LinPageNum + 1;

    // add by Arthur, M1/2/2001, check if the pages are valid
    if(PageCheckLinRange(LinPageNum,nPages,0) < nPages)
    {
       return 0;
    }
    //
    // Return global mapping of passed in pointer, as this new pointer
    // is how the memory must be accessed out of context.
    //
    return (LinPageLock(LinPageNum, nPages, PAGEMAPGLOBAL) + LinOffset);
}
然后再用这个函数锁定你的p->dioc_ovrlp