Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus

3 files changed, 29 insertions, 72 deletions

diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index aedc47a..1f3b0fc 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -139,55 +139,6 @@ int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout)
 	return 0;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static const struct in6_addr *nlmclnt_map_v4addr(const struct sockaddr *sap,
-						 struct in6_addr *addr_mapped)
-{
-	const struct sockaddr_in *sin = (const struct sockaddr_in *)sap;
-
-	switch (sap->sa_family) {
-	case AF_INET6:
-		return &((const struct sockaddr_in6 *)sap)->sin6_addr;
-	case AF_INET:
-		ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, addr_mapped);
-		return addr_mapped;
-	}
-
-	return NULL;
-}
-
-/*
- * If lockd is using a PF_INET6 listener, all incoming requests appear
- * to come from AF_INET6 remotes.  The address of AF_INET remotes are
- * mapped to AF_INET6 automatically by the network layer.  In case the
- * user passed an AF_INET server address at mount time, ensure both
- * addresses are AF_INET6 before comparing them.
- */
-static int nlmclnt_cmp_addr(const struct nlm_host *host,
-			    const struct sockaddr *sap)
-{
-	const struct in6_addr *addr1;
-	const struct in6_addr *addr2;
-	struct in6_addr addr1_mapped;
-	struct in6_addr addr2_mapped;
-
-	addr1 = nlmclnt_map_v4addr(nlm_addr(host), &addr1_mapped);
-	if (likely(addr1 != NULL)) {
-		addr2 = nlmclnt_map_v4addr(sap, &addr2_mapped);
-		if (likely(addr2 != NULL))
-			return ipv6_addr_equal(addr1, addr2);
-	}
-
-	return 0;
-}
-#else	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
-static int nlmclnt_cmp_addr(const struct nlm_host *host,
-			    const struct sockaddr *sap)
-{
-	return nlm_cmp_addr(nlm_addr(host), sap);
-}
-#endif	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
-
 /*
  * The server lockd has called us back to tell us the lock was granted
  */
@@ -215,7 +166,7 @@ __be32 nlmclnt_grant(const struct sockaddr *addr, const struct nlm_lock *lock)
 		 */
 		if (fl_blocked->fl_u.nfs_fl.owner->pid != lock->svid)
 			continue;
-		if (!nlmclnt_cmp_addr(block->b_host, addr))
+		if (!nlm_cmp_addr(nlm_addr(block->b_host), addr))
 			continue;
 		if (nfs_compare_fh(NFS_FH(fl_blocked->fl_file->f_path.dentry->d_inode) ,fh) != 0)
 			continue;
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 5e2c4d5..6d5d4a4 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -16,6 +16,8 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/lockd/lockd.h>
 
+#include <asm/unaligned.h>
+
 #define NLMDBG_FACILITY		NLMDBG_MONITOR
 #define NSM_PROGRAM		100024
 #define NSM_VERSION		1
@@ -274,10 +276,12 @@ static void nsm_init_private(struct nsm_handle *nsm)
 {
 	u64 *p = (u64 *)&nsm->sm_priv.data;
 	struct timespec ts;
+	s64 ns;
 
 	ktime_get_ts(&ts);
-	*p++ = timespec_to_ns(&ts);
-	*p = (unsigned long)nsm;
+	ns = timespec_to_ns(&ts);
+	put_unaligned(ns, p);
+	put_unaligned((unsigned long)nsm, p + 1);
 }
 
 static struct nsm_handle *nsm_create_handle(const struct sockaddr *sap,
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 64f1c31..abf8388 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -53,17 +53,6 @@ static struct svc_rqst		*nlmsvc_rqst;
 unsigned long			nlmsvc_timeout;
 
 /*
- * If the kernel has IPv6 support available, always listen for
- * both AF_INET and AF_INET6 requests.
- */
-#if (defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)) && \
-	defined(CONFIG_SUNRPC_REGISTER_V4)
-static const sa_family_t	nlmsvc_family = AF_INET6;
-#else	/* (CONFIG_IPV6 || CONFIG_IPV6_MODULE) && CONFIG_SUNRPC_REGISTER_V4 */
-static const sa_family_t	nlmsvc_family = AF_INET;
-#endif	/* (CONFIG_IPV6 || CONFIG_IPV6_MODULE) && CONFIG_SUNRPC_REGISTER_V4 */
-
-/*
  * These can be set at insmod time (useful for NFS as root filesystem),
  * and also changed through the sysctl interface.  -- Jamie Lokier, Aug 2003
  */
@@ -204,19 +193,30 @@ lockd(void *vrqstp)
 	return 0;
 }
 
-static int create_lockd_listener(struct svc_serv *serv, char *name,
-				 unsigned short port)
+static int create_lockd_listener(struct svc_serv *serv, const char *name,
+				 const int family, const unsigned short port)
 {
 	struct svc_xprt *xprt;
 
-	xprt = svc_find_xprt(serv, name, 0, 0);
+	xprt = svc_find_xprt(serv, name, family, 0);
 	if (xprt == NULL)
-		return svc_create_xprt(serv, name, port, SVC_SOCK_DEFAULTS);
-
+		return svc_create_xprt(serv, name, family, port,
+						SVC_SOCK_DEFAULTS);
 	svc_xprt_put(xprt);
 	return 0;
 }
 
+static int create_lockd_family(struct svc_serv *serv, const int family)
+{
+	int err;
+
+	err = create_lockd_listener(serv, "udp", family, nlm_udpport);
+	if (err < 0)
+		return err;
+
+	return create_lockd_listener(serv, "tcp", family, nlm_tcpport);
+}
+
 /*
  * Ensure there are active UDP and TCP listeners for lockd.
  *
@@ -232,13 +232,15 @@ static int make_socks(struct svc_serv *serv)
 	static int warned;
 	int err;
 
-	err = create_lockd_listener(serv, "udp", nlm_udpport);
+	err = create_lockd_family(serv, PF_INET);
 	if (err < 0)
 		goto out_err;
 
-	err = create_lockd_listener(serv, "tcp", nlm_tcpport);
-	if (err < 0)
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	err = create_lockd_family(serv, PF_INET6);
+	if (err < 0 && err != -EAFNOSUPPORT)
 		goto out_err;
+#endif	/* CONFIG_IPV6 || CONFIG_IPV6_MODULE */
 
 	warned = 0;
 	return 0;
@@ -274,7 +276,7 @@ int lockd_up(void)
 			"lockd_up: no pid, %d users??\n", nlmsvc_users);
 
 	error = -ENOMEM;
-	serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, nlmsvc_family, NULL);
+	serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, NULL);
 	if (!serv) {
 		printk(KERN_WARNING "lockd_up: create service failed\n");
 		goto out;