ipvs: do not expect result from done_service

This method releases the scheduler state,
it can not fail. Such change will help to properly
replace the scheduler in following patch.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 18aeb85..4990de6 100644 (file)
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -806,7 +806,7 @@ struct ip_vs_scheduler {
        /* scheduler initializing service */
        int (*init_service)(struct ip_vs_service *svc);
        /* scheduling service finish */
-       int (*done_service)(struct ip_vs_service *svc);
+       void (*done_service)(struct ip_vs_service *svc);
        /* scheduler updating service */
        int (*update_service)(struct ip_vs_service *svc);
        /* dest is linked */
@@ -1392,7 +1392,7 @@ extern int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
 extern int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
 extern int ip_vs_bind_scheduler(struct ip_vs_service *svc,
                                struct ip_vs_scheduler *scheduler);
-extern int ip_vs_unbind_scheduler(struct ip_vs_service *svc);
+extern void ip_vs_unbind_scheduler(struct ip_vs_service *svc);
 extern struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name);
 extern void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler);
 extern struct ip_vs_conn *

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 80d366b..d022726 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1334,10 +1334,7 @@ ip_vs_edit_service(struct ip_vs_service *svc, struct ip_vs_service_user_kern *u)
                /*
                 * Unbind the old scheduler
                 */
-               if ((ret = ip_vs_unbind_scheduler(svc))) {
-                       old_sched = sched;
-                       goto out_unlock;
-               }
+               ip_vs_unbind_scheduler(svc);
 
                /*
                 * Bind the new scheduler

diff --git a/net/netfilter/ipvs/ip_vs_dh.c b/net/netfilter/ipvs/ip_vs_dh.c
index ebe80f4..89c2723 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_dh.c
+++ b/net/netfilter/ipvs/ip_vs_dh.c
@@ -174,7 +174,7 @@ static int ip_vs_dh_init_svc(struct ip_vs_service *svc)
 }
 
 
-static int ip_vs_dh_done_svc(struct ip_vs_service *svc)
+static void ip_vs_dh_done_svc(struct ip_vs_service *svc)
 {
        struct ip_vs_dh_state *s = svc->sched_data;
 
@@ -185,8 +185,6 @@ static int ip_vs_dh_done_svc(struct ip_vs_service *svc)
        kfree_rcu(s, rcu_head);
        IP_VS_DBG(6, "DH hash table (memory=%Zdbytes) released\n",
                  sizeof(struct ip_vs_dh_bucket)*IP_VS_DH_TAB_SIZE);
-
-       return 0;
 }
 
 

diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index b873e17..c7ff978 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -388,7 +388,7 @@ static int ip_vs_lblc_init_svc(struct ip_vs_service *svc)
 }
 
 
-static int ip_vs_lblc_done_svc(struct ip_vs_service *svc)
+static void ip_vs_lblc_done_svc(struct ip_vs_service *svc)
 {
        struct ip_vs_lblc_table *tbl = svc->sched_data;
 
@@ -402,8 +402,6 @@ static int ip_vs_lblc_done_svc(struct ip_vs_service *svc)
        kfree_rcu(tbl, rcu_head);
        IP_VS_DBG(6, "LBLC hash table (memory=%Zdbytes) released\n",
                  sizeof(*tbl));
-
-       return 0;
 }
 
 

diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index c22f173..6049b85 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -555,7 +555,7 @@ static int ip_vs_lblcr_init_svc(struct ip_vs_service *svc)
 }
 
 
-static int ip_vs_lblcr_done_svc(struct ip_vs_service *svc)
+static void ip_vs_lblcr_done_svc(struct ip_vs_service *svc)
 {
        struct ip_vs_lblcr_table *tbl = svc->sched_data;
 
@@ -569,8 +569,6 @@ static int ip_vs_lblcr_done_svc(struct ip_vs_service *svc)
        kfree_rcu(tbl, rcu_head);
        IP_VS_DBG(6, "LBLCR hash table (memory=%Zdbytes) released\n",
                  sizeof(*tbl));
-
-       return 0;
 }
 
 

diff --git a/net/netfilter/ipvs/ip_vs_sched.c b/net/netfilter/ipvs/ip_vs_sched.c
index 7f11d3d..1b715d0 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_sched.c
+++ b/net/netfilter/ipvs/ip_vs_sched.c
@@ -64,22 +64,17 @@ int ip_vs_bind_scheduler(struct ip_vs_service *svc,
 /*
  *  Unbind a service with its scheduler
  */
-int ip_vs_unbind_scheduler(struct ip_vs_service *svc)
+void ip_vs_unbind_scheduler(struct ip_vs_service *svc)
 {
        struct ip_vs_scheduler *sched = svc->scheduler;
 
        if (!sched)
-               return 0;
+               return;
 
-       if (sched->done_service) {
-               if (sched->done_service(svc) != 0) {
-                       pr_err("%s(): done error\n", __func__);
-                       return -EINVAL;
-               }
-       }
+       if (sched->done_service)
+               sched->done_service(svc);
 
        svc->scheduler = NULL;
-       return 0;
 }
 
 

diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c
index 55e76d8..81c1a10 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_sh.c
+++ b/net/netfilter/ipvs/ip_vs_sh.c
@@ -187,7 +187,7 @@ static int ip_vs_sh_init_svc(struct ip_vs_service *svc)
 }
 
 
-static int ip_vs_sh_done_svc(struct ip_vs_service *svc)
+static void ip_vs_sh_done_svc(struct ip_vs_service *svc)
 {
        struct ip_vs_sh_state *s = svc->sched_data;
 
@@ -198,8 +198,6 @@ static int ip_vs_sh_done_svc(struct ip_vs_service *svc)
        kfree_rcu(s, rcu_head);
        IP_VS_DBG(6, "SH hash table (memory=%Zdbytes) released\n",
                  sizeof(struct ip_vs_sh_bucket)*IP_VS_SH_TAB_SIZE);
-
-       return 0;
 }
 
 

diff --git a/net/netfilter/ipvs/ip_vs_wrr.c b/net/netfilter/ipvs/ip_vs_wrr.c
index 98cb05e..a74fd9b 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_wrr.c
+++ b/net/netfilter/ipvs/ip_vs_wrr.c
@@ -129,7 +129,7 @@ static int ip_vs_wrr_init_svc(struct ip_vs_service *svc)
 }
 
 
-static int ip_vs_wrr_done_svc(struct ip_vs_service *svc)
+static void ip_vs_wrr_done_svc(struct ip_vs_service *svc)
 {
        struct ip_vs_wrr_mark *mark = svc->sched_data;
 
@@ -137,8 +137,6 @@ static int ip_vs_wrr_done_svc(struct ip_vs_service *svc)
         *    Release the mark variable
         */
        kfree_rcu(mark, rcu_head);
-
-       return 0;
 }