sunrpc: Pass the ip_map_parse's cd to lower calls

The target is to have many ip_map_cache-s in the system. This particular
patch handles its usage by the ip_map_parse callback.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 21 insertions, 10 deletions

diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index e91b550bc836..31b99c599e7e 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -178,8 +178,8 @@ static int ip_map_upcall(struct cache_detail *cd, struct cache_head *h)
         return sunrpc_cache_pipe_upcall(cd, h, ip_map_request);
 }
 
-static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr);
-static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry);
+static struct ip_map *__ip_map_lookup(struct cache_detail *cd, char *class, struct in6_addr *addr);
+static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm, struct unix_domain *udom, time_t expiry);
 
 static int ip_map_parse(struct cache_detail *cd,
                           char *mesg, int mlen)
@@ -249,9 +249,9 @@ static int ip_map_parse(struct cache_detail *cd,
                 dom = NULL;
 
         /* IPv6 scope IDs are ignored for now */
-        ipmp = ip_map_lookup(class, &sin6.sin6_addr);
+        ipmp = __ip_map_lookup(cd, class, &sin6.sin6_addr);
         if (ipmp) {
-                err = ip_map_update(ipmp,
+                err = __ip_map_update(cd, ipmp,
                              container_of(dom, struct unix_domain, h),
                              expiry);
         } else
@@ -309,14 +309,15 @@ struct cache_detail ip_map_cache = {
         .alloc          = ip_map_alloc,
 };
 
-static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr)
+static struct ip_map *__ip_map_lookup(struct cache_detail *cd, char *class,
+                struct in6_addr *addr)
 {
         struct ip_map ip;
         struct cache_head *ch;
 
         strcpy(ip.m_class, class);
         ipv6_addr_copy(&ip.m_addr, addr);
-        ch = sunrpc_cache_lookup(&ip_map_cache, &ip.h,
+        ch = sunrpc_cache_lookup(cd, &ip.h,
                                  hash_str(class, IP_HASHBITS) ^
                                  hash_ip6(*addr));
 
@@ -326,7 +327,13 @@ static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr)
                 return NULL;
 }
 
-static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry)
+static inline struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr)
+{
+        return __ip_map_lookup(&ip_map_cache, class, addr);
+}
+
+static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm,
+                struct unix_domain *udom, time_t expiry)
 {
         struct ip_map ip;
         struct cache_head *ch;
@@ -344,16 +351,20 @@ static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t ex
                         ip.m_add_change++;
         }
         ip.h.expiry_time = expiry;
-        ch = sunrpc_cache_update(&ip_map_cache,
-                                 &ip.h, &ipm->h,
+        ch = sunrpc_cache_update(cd, &ip.h, &ipm->h,
                                  hash_str(ipm->m_class, IP_HASHBITS) ^
                                  hash_ip6(ipm->m_addr));
         if (!ch)
                 return -ENOMEM;
-        cache_put(ch, &ip_map_cache);
+        cache_put(ch, cd);
         return 0;
 }
 
+static inline int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry)
+{
+        return __ip_map_update(&ip_map_cache, ipm, udom, expiry);
+}
+
 int auth_unix_add_addr(struct in6_addr *addr, struct auth_domain *dom)
 {
         struct unix_domain *udom;