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/*
* Copyright (c) 1996, 1997, 1998 The University of Utah and the Flux Group.
*
* This file is part of the OSKit Linux Glue Libraries, which are free
* software, also known as "open source;" you can redistribute them and/or
* modify them under the terms of the GNU General Public License (GPL),
* version 2, as published by the Free Software Foundation (FSF).
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
struct wait_queue;
struct buffer_head;
/*
* This macro must be invoked in every process-level fdev_linux entrypoint;
* it initializes the specified 'task_struct',
* which must have been allocated locally on the stack,
* and sets the 'current' pointer to point to it.
*/
#define OSKIT_LINUX_CREATE_CURRENT(ts) \
(ts).fsuid = 0; \
current = &(ts);
/*
* This macro is invoked on exit from process-level fdev_linux entrypoints;
* it clears the 'current' pointer back to the "idle" task
* ("idle" meaning the driver set is idle, not that the system is idle).
*/
#ifdef OSKIT_DEBUG
#define OSKIT_LINUX_DESTROY_CURRENT() \
current = (struct task_struct*)0xdeadcccc
#define OSKIT_LINUX_CHECK_CURRENT() \
if (cur == (struct task_struct*)0xdeadcccc) \
panic("OSKIT_LINUX_CHECK_CURRENT: no current task");
#else
#define OSKIT_LINUX_DESTROY_CURRENT() /* do nothing */
#define OSKIT_LINUX_CHECK_CURRENT() /* do nothing */
#endif
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