kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[IPV4]: Kill MULTIPATHHOLDROUTE flag.

Browse source 
It cannot work properly, so just ignore it in drr
and rr multipath algorithms just like the random
multipath algorithm does.

Suggested by Herbert Xu.

Signed-off by: Pravin B. Shelar <pravins@calsoftinc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pravin B. Shelar 2005-05-29 20:26:44 -07:00 committed by David S. Miller
parent 79165121bc
commit 37e20a66db
3 changed files with 1 additions and 40 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
include/net/route.h
View file

@ -181,9 +181,6 @@ static inline int ip_route_newports(struct rtable **rp, u16 sport, u16 dport,
memcpy(&fl, &(*rp)->fl, sizeof(fl));
fl.fl_ip_sport = sport;
fl.fl_ip_dport = dport;
#if defined(CONFIG_IP_ROUTE_MULTIPATH_CACHED)
fl.flags |= FLOWI_FLAG_MULTIPATHOLDROUTE;
#endif
ip_rt_put(*rp);
*rp = NULL;
return ip_route_output_flow(rp, &fl, sk, 0);

18
net/ipv4/multipath_drr.c
View file

@ -57,7 +57,6 @@ struct multipath_device {
static struct multipath_device state[MULTIPATH_MAX_DEVICECANDIDATES];
static DEFINE_SPINLOCK(state_lock);
static struct rtable *last_selection = NULL;
static int inline __multipath_findslot(void)
{
@ -111,11 +110,6 @@ struct notifier_block drr_dev_notifier = {
.notifier_call = drr_dev_event,
};
static void drr_remove(struct rtable *rt)
{
if (last_selection == rt)
last_selection = NULL;
}
static void drr_safe_inc(atomic_t *usecount)
{
@ -144,14 +138,6 @@ static void drr_select_route(const struct flowi *flp,
int devidx = -1;
int cur_min_devidx = -1;
/* if necessary and possible utilize the old alternative */
if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
last_selection != NULL) {
result = last_selection;
*rp = result;
return;
}
/* 1. make sure all alt. nexthops have the same GC related data */
/* 2. determine the new candidate to be returned */
result = NULL;
@ -229,12 +215,10 @@ static void drr_select_route(const struct flowi *flp,
}
*rp = result;
last_selection = result;
}
static struct ip_mp_alg_ops drr_ops = {
.mp_alg_select_route = drr_select_route,
.mp_alg_remove = drr_remove,
};
static int __init drr_init(void)
@ -244,7 +228,7 @@ static int __init drr_init(void)
if (err)
return err;
err = multipath_alg_register(&drr_ops, IP_MP_ALG_RR);
err = multipath_alg_register(&drr_ops, IP_MP_ALG_DRR);
if (err)
goto fail;

20
net/ipv4/multipath_rr.c
View file

@ -47,29 +47,12 @@
#include <net/checksum.h>
#include <net/ip_mp_alg.h>
#define MULTIPATH_MAX_CANDIDATES 40
static struct rtable* last_used = NULL;
static void rr_remove(struct rtable *rt)
{
if (last_used == rt)
last_used = NULL;
}
static void rr_select_route(const struct flowi *flp,
struct rtable *first, struct rtable **rp)
{
struct rtable *nh, *result, *min_use_cand = NULL;
int min_use = -1;
/* if necessary and possible utilize the old alternative */
if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
last_used != NULL) {
result = last_used;
goto out;
}
/* 1. make sure all alt. nexthops have the same GC related data
* 2. determine the new candidate to be returned
*/
@ -90,15 +73,12 @@ static void rr_select_route(const struct flowi *flp,
if (!result)
result = first;
out:
last_used = result;
result->u.dst.__use++;
*rp = result;
}
static struct ip_mp_alg_ops rr_ops = {
.mp_alg_select_route = rr_select_route,
.mp_alg_remove = rr_remove,
};
static int __init rr_init(void)