summaryrefslogtreecommitdiffstats
path: root/net/ipv4/ipvs/ip_vs_rr.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4/ipvs/ip_vs_rr.c')
-rw-r--r--net/ipv4/ipvs/ip_vs_rr.c116
1 files changed, 0 insertions, 116 deletions
diff --git a/net/ipv4/ipvs/ip_vs_rr.c b/net/ipv4/ipvs/ip_vs_rr.c
deleted file mode 100644
index 358110d17e5..00000000000
--- a/net/ipv4/ipvs/ip_vs_rr.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * IPVS: Round-Robin Scheduling module
- *
- * Authors: Wensong Zhang <wensong@linuxvirtualserver.org>
- * Peter Kese <peter.kese@ijs.si>
- *
- * 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.
- *
- * Fixes/Changes:
- * Wensong Zhang : changed the ip_vs_rr_schedule to return dest
- * Julian Anastasov : fixed the NULL pointer access bug in debugging
- * Wensong Zhang : changed some comestics things for debugging
- * Wensong Zhang : changed for the d-linked destination list
- * Wensong Zhang : added the ip_vs_rr_update_svc
- * Wensong Zhang : added any dest with weight=0 is quiesced
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#include <net/ip_vs.h>
-
-
-static int ip_vs_rr_init_svc(struct ip_vs_service *svc)
-{
- svc->sched_data = &svc->destinations;
- return 0;
-}
-
-
-static int ip_vs_rr_done_svc(struct ip_vs_service *svc)
-{
- return 0;
-}
-
-
-static int ip_vs_rr_update_svc(struct ip_vs_service *svc)
-{
- svc->sched_data = &svc->destinations;
- return 0;
-}
-
-
-/*
- * Round-Robin Scheduling
- */
-static struct ip_vs_dest *
-ip_vs_rr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
-{
- struct list_head *p, *q;
- struct ip_vs_dest *dest;
-
- IP_VS_DBG(6, "ip_vs_rr_schedule(): Scheduling...\n");
-
- write_lock(&svc->sched_lock);
- p = (struct list_head *)svc->sched_data;
- p = p->next;
- q = p;
- do {
- /* skip list head */
- if (q == &svc->destinations) {
- q = q->next;
- continue;
- }
-
- dest = list_entry(q, struct ip_vs_dest, n_list);
- if (!(dest->flags & IP_VS_DEST_F_OVERLOAD) &&
- atomic_read(&dest->weight) > 0)
- /* HIT */
- goto out;
- q = q->next;
- } while (q != p);
- write_unlock(&svc->sched_lock);
- return NULL;
-
- out:
- svc->sched_data = q;
- write_unlock(&svc->sched_lock);
- IP_VS_DBG(6, "RR: server %u.%u.%u.%u:%u "
- "activeconns %d refcnt %d weight %d\n",
- NIPQUAD(dest->addr), ntohs(dest->port),
- atomic_read(&dest->activeconns),
- atomic_read(&dest->refcnt), atomic_read(&dest->weight));
-
- return dest;
-}
-
-
-static struct ip_vs_scheduler ip_vs_rr_scheduler = {
- .name = "rr", /* name */
- .refcnt = ATOMIC_INIT(0),
- .module = THIS_MODULE,
- .n_list = LIST_HEAD_INIT(ip_vs_rr_scheduler.n_list),
- .init_service = ip_vs_rr_init_svc,
- .done_service = ip_vs_rr_done_svc,
- .update_service = ip_vs_rr_update_svc,
- .schedule = ip_vs_rr_schedule,
-};
-
-static int __init ip_vs_rr_init(void)
-{
- return register_ip_vs_scheduler(&ip_vs_rr_scheduler);
-}
-
-static void __exit ip_vs_rr_cleanup(void)
-{
- unregister_ip_vs_scheduler(&ip_vs_rr_scheduler);
-}
-
-module_init(ip_vs_rr_init);
-module_exit(ip_vs_rr_cleanup);
-MODULE_LICENSE("GPL");