-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program 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 GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- * Author: Isaac Huang <isaac@clusterfs.com>
+ * Copyright (c) 2011, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lnet/selftest/timer.c
*
+ * Author: Isaac Huang <isaac@clusterfs.com>
*/
#define DEBUG_SUBSYSTEM S_LNET
-#include <libcfs/kp30.h>
-#include <libcfs/libcfs.h>
-#include <lnet/lib-lnet.h>
-
#include "selftest.h"
* sorted by increasing expiry time. The number of slots is 2**7 (128),
* to cover a time period of 1024 seconds into the future before wrapping.
*/
-#define STTIMER_MINPOLL 3 /* log2 min poll interval (8 s) */
-#define STTIMER_SLOTTIME (1 << STTIMER_MINPOLL)
-#define STTIMER_SLOTTIMEMASK (~(STTIMER_SLOTTIME - 1))
-#define STTIMER_NSLOTS (1 << 7)
-#define STTIMER_SLOT(t) (&stt_data.stt_hash[(((t) >> STTIMER_MINPOLL) & \
+#define STTIMER_MINPOLL 3 /* log2 min poll interval (8 s) */
+#define STTIMER_SLOTTIME (1 << STTIMER_MINPOLL)
+#define STTIMER_SLOTTIMEMASK (~(STTIMER_SLOTTIME - 1))
+#define STTIMER_NSLOTS (1 << 7)
+#define STTIMER_SLOT(t) (&stt_data.stt_hash[(((t) >> STTIMER_MINPOLL) & \
(STTIMER_NSLOTS - 1))])
struct st_timer_data {
- spinlock_t stt_lock;
+ spinlock_t stt_lock;
/* start time of the slot processed previously */
- cfs_time_t stt_prev_slot;
- struct list_head stt_hash[STTIMER_NSLOTS];
+ cfs_time_t stt_prev_slot;
+ cfs_list_t stt_hash[STTIMER_NSLOTS];
int stt_shuttingdown;
#ifdef __KERNEL__
cfs_waitq_t stt_waitq;
} stt_data;
void
-stt_add_timer (stt_timer_t *timer)
+stt_add_timer(stt_timer_t *timer)
{
- struct list_head *pos;
+ cfs_list_t *pos;
- spin_lock(&stt_data.stt_lock);
+ spin_lock(&stt_data.stt_lock);
#ifdef __KERNEL__
LASSERT (stt_data.stt_nthreads > 0);
#endif
LASSERT (!stt_data.stt_shuttingdown);
LASSERT (timer->stt_func != NULL);
- LASSERT (list_empty(&timer->stt_list));
+ LASSERT (cfs_list_empty(&timer->stt_list));
LASSERT (cfs_time_after(timer->stt_expires, cfs_time_current_sec()));
/* a simple insertion sort */
- list_for_each_prev (pos, STTIMER_SLOT(timer->stt_expires)) {
- stt_timer_t *old = list_entry(pos, stt_timer_t, stt_list);
+ cfs_list_for_each_prev (pos, STTIMER_SLOT(timer->stt_expires)) {
+ stt_timer_t *old = cfs_list_entry(pos, stt_timer_t, stt_list);
if (cfs_time_aftereq(timer->stt_expires, old->stt_expires))
break;
}
- list_add(&timer->stt_list, pos);
+ cfs_list_add(&timer->stt_list, pos);
- spin_unlock(&stt_data.stt_lock);
+ spin_unlock(&stt_data.stt_lock);
}
/*
int
stt_del_timer (stt_timer_t *timer)
{
- int ret = 0;
+ int ret = 0;
- spin_lock(&stt_data.stt_lock);
+ spin_lock(&stt_data.stt_lock);
#ifdef __KERNEL__
LASSERT (stt_data.stt_nthreads > 0);
#endif
LASSERT (!stt_data.stt_shuttingdown);
- if (!list_empty(&timer->stt_list)) {
+ if (!cfs_list_empty(&timer->stt_list)) {
ret = 1;
- list_del_init(&timer->stt_list);
+ cfs_list_del_init(&timer->stt_list);
}
- spin_unlock(&stt_data.stt_lock);
- return ret;
+ spin_unlock(&stt_data.stt_lock);
+ return ret;
}
/* called with stt_data.stt_lock held */
int
-stt_expire_list (struct list_head *slot, cfs_time_t now)
+stt_expire_list (cfs_list_t *slot, cfs_time_t now)
{
int expired = 0;
stt_timer_t *timer;
- while (!list_empty(slot)) {
- timer = list_entry(slot->next, stt_timer_t, stt_list);
+ while (!cfs_list_empty(slot)) {
+ timer = cfs_list_entry(slot->next, stt_timer_t, stt_list);
if (cfs_time_after(timer->stt_expires, now))
break;
- list_del_init(&timer->stt_list);
- spin_unlock(&stt_data.stt_lock);
+ cfs_list_del_init(&timer->stt_list);
+ spin_unlock(&stt_data.stt_lock);
- expired++;
- (*timer->stt_func) (timer->stt_data);
-
- spin_lock(&stt_data.stt_lock);
- }
+ expired++;
+ (*timer->stt_func) (timer->stt_data);
- return expired;
+ spin_lock(&stt_data.stt_lock);
+ }
+
+ return expired;
}
int
now = cfs_time_current_sec();
this_slot = now & STTIMER_SLOTTIMEMASK;
- spin_lock(&stt_data.stt_lock);
+ spin_lock(&stt_data.stt_lock);
- while (cfs_time_aftereq(this_slot, *last)) {
- expired += stt_expire_list(STTIMER_SLOT(this_slot), now);
- this_slot = cfs_time_sub(this_slot, STTIMER_SLOTTIME);
- }
+ while (cfs_time_aftereq(this_slot, *last)) {
+ expired += stt_expire_list(STTIMER_SLOT(this_slot), now);
+ this_slot = cfs_time_sub(this_slot, STTIMER_SLOTTIME);
+ }
- *last = now & STTIMER_SLOTTIMEMASK;
- spin_unlock(&stt_data.stt_lock);
- return expired;
+ *last = now & STTIMER_SLOTTIMEMASK;
+ spin_unlock(&stt_data.stt_lock);
+ return expired;
}
#ifdef __KERNEL__
int
stt_timer_main (void *arg)
{
+ int rc = 0;
UNUSED(arg);
+ SET_BUT_UNUSED(rc);
+
cfs_daemonize("st_timer");
cfs_block_allsigs();
while (!stt_data.stt_shuttingdown) {
stt_check_timers(&stt_data.stt_prev_slot);
- wait_event_timeout(stt_data.stt_waitq,
+ cfs_waitq_wait_event_timeout(stt_data.stt_waitq,
stt_data.stt_shuttingdown,
- cfs_time_seconds(STTIMER_SLOTTIME));
+ cfs_time_seconds(STTIMER_SLOTTIME),
+ rc);
}
- spin_lock(&stt_data.stt_lock);
- stt_data.stt_nthreads--;
- spin_unlock(&stt_data.stt_lock);
- return 0;
+ spin_lock(&stt_data.stt_lock);
+ stt_data.stt_nthreads--;
+ spin_unlock(&stt_data.stt_lock);
+ return 0;
}
int
LASSERT (!stt_data.stt_shuttingdown);
- pid = cfs_kernel_thread(stt_timer_main, NULL, 0);
+ pid = cfs_create_thread(stt_timer_main, NULL, 0);
if (pid < 0)
return (int)pid;
- spin_lock(&stt_data.stt_lock);
- stt_data.stt_nthreads++;
- spin_unlock(&stt_data.stt_lock);
- return 0;
+ spin_lock(&stt_data.stt_lock);
+ stt_data.stt_nthreads++;
+ spin_unlock(&stt_data.stt_lock);
+ return 0;
}
#else /* !__KERNEL__ */
stt_data.stt_shuttingdown = 0;
stt_data.stt_prev_slot = cfs_time_current_sec() & STTIMER_SLOTTIMEMASK;
- spin_lock_init(&stt_data.stt_lock);
+ spin_lock_init(&stt_data.stt_lock);
for (i = 0; i < STTIMER_NSLOTS; i++)
CFS_INIT_LIST_HEAD(&stt_data.stt_hash[i]);
{
int i;
- spin_lock(&stt_data.stt_lock);
+ spin_lock(&stt_data.stt_lock);
for (i = 0; i < STTIMER_NSLOTS; i++)
- LASSERT (list_empty(&stt_data.stt_hash[i]));
+ LASSERT (cfs_list_empty(&stt_data.stt_hash[i]));
stt_data.stt_shuttingdown = 1;
stt_data.stt_nthreads);
#endif
- spin_unlock(&stt_data.stt_lock);
- return;
+ spin_unlock(&stt_data.stt_lock);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff