Index for Section 9r

Alphabetical listing for C

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current_task(9r)
NAME
  current_task - General: Returns a pointer to the task structure associated
  with the currently running kernel thread

SYNOPSIS
  struct task * current_task(
	  void );

ARGUMENTS
  None

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

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

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

  Data Structures: thread(9s)

Index for Section 9r

Alphabetical listing for C

Top of page