NAME    [Toc]    [Back]

       current_task  -  General:  Returns  a  pointer to the task
       structure associated with  the  currently  running  kernel
       thread

SYNOPSIS    [Toc]    [Back]

       struct task * current_task(
               void );

ARGUMENTS    [Toc]    [Back]

       None

DESCRIPTION    [Toc]    [Back]

       The  current_task  routine  returns  a pointer to the task
       structure associated with  the  currently  running  kernel
       thread.   A  device driver typically calls this routine in
       preparation for doing a DMA operation to a user's  buffer.
       The  device  driver  uses  the  pointer  returned  by current_task
 in the call to the vm_map_pageable routine.

CAUTIONS    [Toc]    [Back]

       You must not call the current_task routine from a driver's
       interrupt handler.

RETURN VALUES    [Toc]    [Back]

       The  current_task  routine  returns  a pointer to the task
       structure for the currently running kernel thread.

SEE ALSO    [Toc]    [Back]

       Routines:  round_page(9r),  trunc_page(9r),   vm_map_pageable(9r)

       Data Structures: thread(9s)



                                                 current_task(9r)