1 files changed, 0 insertions, 200 deletions
diff --git a/net/ipv4/ipvs/ip_vs_est.c b/net/ipv4/ipvs/ip_vs_est.c
deleted file mode 100644
index bc04eedd6db..00000000000
--- a/net/ipv4/ipvs/ip_vs_est.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * ip_vs_est.c: simple rate estimator for IPVS
- *
- * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
- *
- *              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.
- *
- * Changes:
- *
- */
-#include <linux/kernel.h>
-#include <linux/jiffies.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/sysctl.h>
-
-#include <net/ip_vs.h>
-
-/*
-  This code is to estimate rate in a shorter interval (such as 8
-  seconds) for virtual services and real servers. For measure rate in a
-  long interval, it is easy to implement a user level daemon which
-  periodically reads those statistical counters and measure rate.
-
-  Currently, the measurement is activated by slow timer handler. Hope
-  this measurement will not introduce too much load.
-
-  We measure rate during the last 8 seconds every 2 seconds:
-
-    avgrate = avgrate*(1-W) + rate*W
-
-    where W = 2^(-2)
-
-  NOTES.
-
-  * The stored value for average bps is scaled by 2^5, so that maximal
-    rate is ~2.15Gbits/s, average pps and cps are scaled by 2^10.
-
-  * A lot code is taken from net/sched/estimator.c
- */
-
-
-struct ip_vs_estimator
-{
-	struct ip_vs_estimator	*next;
-	struct ip_vs_stats	*stats;
-
-	u32			last_conns;
-	u32			last_inpkts;
-	u32			last_outpkts;
-	u64			last_inbytes;
-	u64			last_outbytes;
-
-	u32			cps;
-	u32			inpps;
-	u32			outpps;
-	u32			inbps;
-	u32			outbps;
-};
-
-
-static struct ip_vs_estimator *est_list = NULL;
-static DEFINE_RWLOCK(est_lock);
-static struct timer_list est_timer;
-
-static void estimation_timer(unsigned long arg)
-{
-	struct ip_vs_estimator *e;
-	struct ip_vs_stats *s;
-	u32 n_conns;
-	u32 n_inpkts, n_outpkts;
-	u64 n_inbytes, n_outbytes;
-	u32 rate;
-
-	read_lock(&est_lock);
-	for (e = est_list; e; e = e->next) {
-		s = e->stats;
-
-		spin_lock(&s->lock);
-		n_conns = s->conns;
-		n_inpkts = s->inpkts;
-		n_outpkts = s->outpkts;
-		n_inbytes = s->inbytes;
-		n_outbytes = s->outbytes;
-
-		/* scaled by 2^10, but divided 2 seconds */
-		rate = (n_conns - e->last_conns)<<9;
-		e->last_conns = n_conns;
-		e->cps += ((long)rate - (long)e->cps)>>2;
-		s->cps = (e->cps+0x1FF)>>10;
-
-		rate = (n_inpkts - e->last_inpkts)<<9;
-		e->last_inpkts = n_inpkts;
-		e->inpps += ((long)rate - (long)e->inpps)>>2;
-		s->inpps = (e->inpps+0x1FF)>>10;
-
-		rate = (n_outpkts - e->last_outpkts)<<9;
-		e->last_outpkts = n_outpkts;
-		e->outpps += ((long)rate - (long)e->outpps)>>2;
-		s->outpps = (e->outpps+0x1FF)>>10;
-
-		rate = (n_inbytes - e->last_inbytes)<<4;
-		e->last_inbytes = n_inbytes;
-		e->inbps += ((long)rate - (long)e->inbps)>>2;
-		s->inbps = (e->inbps+0xF)>>5;
-
-		rate = (n_outbytes - e->last_outbytes)<<4;
-		e->last_outbytes = n_outbytes;
-		e->outbps += ((long)rate - (long)e->outbps)>>2;
-		s->outbps = (e->outbps+0xF)>>5;
-		spin_unlock(&s->lock);
-	}
-	read_unlock(&est_lock);
-	mod_timer(&est_timer, jiffies + 2*HZ);
-}
-
-int ip_vs_new_estimator(struct ip_vs_stats *stats)
-{
-	struct ip_vs_estimator *est;
-
-	est = kzalloc(sizeof(*est), GFP_KERNEL);
-	if (est == NULL)
-		return -ENOMEM;
-
-	est->stats = stats;
-	est->last_conns = stats->conns;
-	est->cps = stats->cps<<10;
-
-	est->last_inpkts = stats->inpkts;
-	est->inpps = stats->inpps<<10;
-
-	est->last_outpkts = stats->outpkts;
-	est->outpps = stats->outpps<<10;
-
-	est->last_inbytes = stats->inbytes;
-	est->inbps = stats->inbps<<5;
-
-	est->last_outbytes = stats->outbytes;
-	est->outbps = stats->outbps<<5;
-
-	write_lock_bh(&est_lock);
-	est->next = est_list;
-	if (est->next == NULL) {
-		setup_timer(&est_timer, estimation_timer, 0);
-		est_timer.expires = jiffies + 2*HZ;
-		add_timer(&est_timer);
-	}
-	est_list = est;
-	write_unlock_bh(&est_lock);
-	return 0;
-}
-
-void ip_vs_kill_estimator(struct ip_vs_stats *stats)
-{
-	struct ip_vs_estimator *est, **pest;
-	int killed = 0;
-
-	write_lock_bh(&est_lock);
-	pest = &est_list;
-	while ((est=*pest) != NULL) {
-		if (est->stats != stats) {
-			pest = &est->next;
-			continue;
-		}
-		*pest = est->next;
-		kfree(est);
-		killed++;
-	}
-	if (killed && est_list == NULL)
-		del_timer_sync(&est_timer);
-	write_unlock_bh(&est_lock);
-}
-
-void ip_vs_zero_estimator(struct ip_vs_stats *stats)
-{
-	struct ip_vs_estimator *e;
-
-	write_lock_bh(&est_lock);
-	for (e = est_list; e; e = e->next) {
-		if (e->stats != stats)
-			continue;
-
-		/* set counters zero */
-		e->last_conns = 0;
-		e->last_inpkts = 0;
-		e->last_outpkts = 0;
-		e->last_inbytes = 0;
-		e->last_outbytes = 0;
-		e->cps = 0;
-		e->inpps = 0;
-		e->outpps = 0;
-		e->inbps = 0;
-		e->outbps = 0;
-	}
-	write_unlock_bh(&est_lock);
-}