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Diffstat (limited to 'fs/afs/kafstimod.c')
-rw-r--r--fs/afs/kafstimod.c194
1 files changed, 0 insertions, 194 deletions
diff --git a/fs/afs/kafstimod.c b/fs/afs/kafstimod.c
deleted file mode 100644
index 3526dcccc163..000000000000
--- a/fs/afs/kafstimod.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/* AFS timeout daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/completion.h>
-#include <linux/freezer.h>
-#include "cell.h"
-#include "volume.h"
-#include "kafstimod.h"
-#include <asm/errno.h>
-#include "internal.h"
-
-static DECLARE_COMPLETION(kafstimod_alive);
-static DECLARE_COMPLETION(kafstimod_dead);
-static DECLARE_WAIT_QUEUE_HEAD(kafstimod_sleepq);
-static int kafstimod_die;
-
-static LIST_HEAD(kafstimod_list);
-static DEFINE_SPINLOCK(kafstimod_lock);
-
-static int kafstimod(void *arg);
-
-/*
- * start the timeout daemon
- */
-int afs_kafstimod_start(void)
-{
- int ret;
-
- ret = kernel_thread(kafstimod, NULL, 0);
- if (ret < 0)
- return ret;
-
- wait_for_completion(&kafstimod_alive);
-
- return ret;
-}
-
-/*
- * stop the timeout daemon
- */
-void afs_kafstimod_stop(void)
-{
- /* get rid of my daemon */
- kafstimod_die = 1;
- wake_up(&kafstimod_sleepq);
- wait_for_completion(&kafstimod_dead);
-}
-
-/*
- * timeout processing daemon
- */
-static int kafstimod(void *arg)
-{
- struct afs_timer *timer;
-
- DECLARE_WAITQUEUE(myself, current);
-
- printk("kAFS: Started kafstimod %d\n", current->pid);
-
- daemonize("kafstimod");
-
- complete(&kafstimod_alive);
-
- /* loop around looking for things to attend to */
-loop:
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&kafstimod_sleepq, &myself);
-
- for (;;) {
- unsigned long jif;
- signed long timeout;
-
- /* deal with the server being asked to die */
- if (kafstimod_die) {
- remove_wait_queue(&kafstimod_sleepq, &myself);
- _leave("");
- complete_and_exit(&kafstimod_dead, 0);
- }
-
- try_to_freeze();
-
- /* discard pending signals */
- afs_discard_my_signals();
-
- /* work out the time to elapse before the next event */
- spin_lock(&kafstimod_lock);
- if (list_empty(&kafstimod_list)) {
- timeout = MAX_SCHEDULE_TIMEOUT;
- } else {
- timer = list_entry(kafstimod_list.next,
- struct afs_timer, link);
- timeout = timer->timo_jif;
- jif = jiffies;
-
- if (time_before_eq((unsigned long) timeout, jif))
- goto immediate;
- timeout = (long) timeout - (long) jiffies;
- }
- spin_unlock(&kafstimod_lock);
-
- schedule_timeout(timeout);
-
- set_current_state(TASK_INTERRUPTIBLE);
- }
-
- /* the thing on the front of the queue needs processing
- * - we come here with the lock held and timer pointing to the expired
- * entry
- */
-immediate:
- remove_wait_queue(&kafstimod_sleepq, &myself);
- set_current_state(TASK_RUNNING);
-
- _debug("@@@ Begin Timeout of %p", timer);
-
- /* dequeue the timer */
- list_del_init(&timer->link);
- spin_unlock(&kafstimod_lock);
-
- /* call the timeout function */
- timer->ops->timed_out(timer);
-
- _debug("@@@ End Timeout");
- goto loop;
-}
-
-/*
- * (re-)queue a timer
- */
-void afs_kafstimod_add_timer(struct afs_timer *timer, unsigned long timeout)
-{
- struct afs_timer *ptimer;
- struct list_head *_p;
-
- _enter("%p,%lu", timer, timeout);
-
- spin_lock(&kafstimod_lock);
-
- list_del(&timer->link);
-
- /* the timer was deferred or reset - put it back in the queue at the
- * right place */
- timer->timo_jif = jiffies + timeout;
-
- list_for_each(_p, &kafstimod_list) {
- ptimer = list_entry(_p, struct afs_timer, link);
- if (time_before(timer->timo_jif, ptimer->timo_jif))
- break;
- }
-
- list_add_tail(&timer->link, _p); /* insert before stopping point */
-
- spin_unlock(&kafstimod_lock);
-
- wake_up(&kafstimod_sleepq);
-
- _leave("");
-}
-
-/*
- * dequeue a timer
- * - returns 0 if the timer was deleted or -ENOENT if it wasn't queued
- */
-int afs_kafstimod_del_timer(struct afs_timer *timer)
-{
- int ret = 0;
-
- _enter("%p", timer);
-
- spin_lock(&kafstimod_lock);
-
- if (list_empty(&timer->link))
- ret = -ENOENT;
- else
- list_del_init(&timer->link);
-
- spin_unlock(&kafstimod_lock);
-
- wake_up(&kafstimod_sleepq);
-
- _leave(" = %d", ret);
- return ret;
-}