16 files changed, 203 insertions, 84 deletions

diff --git a/net/9p/client.c b/net/9p/client.c
index 0aa79faa9850..37c8da07a80b 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1321,7 +1321,8 @@ static int p9_client_statsize(struct p9_wstat *wst, int proto_version)
         if (wst->muid)
                 ret += strlen(wst->muid);
 
-        if (proto_version == p9_proto_2000u) {
+        if ((proto_version == p9_proto_2000u) ||
+                (proto_version == p9_proto_2000L)) {
                 ret += 2+4+4+4; /* extension[s] n_uid[4] n_gid[4] n_muid[4] */
                 if (wst->extension)
                         ret += strlen(wst->extension);
@@ -1364,3 +1365,70 @@ error:
         return err;
 }
 EXPORT_SYMBOL(p9_client_wstat);
+
+int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb)
+{
+        int err;
+        struct p9_req_t *req;
+        struct p9_client *clnt;
+
+        err = 0;
+        clnt = fid->clnt;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TSTATFS fid %d\n", fid->fid);
+
+        req = p9_client_rpc(clnt, P9_TSTATFS, "d", fid->fid);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "ddqqqqqqd", &sb->type,
+                &sb->bsize, &sb->blocks, &sb->bfree, &sb->bavail,
+                &sb->files, &sb->ffree, &sb->fsid, &sb->namelen);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                p9_free_req(clnt, req);
+                goto error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RSTATFS fid %d type 0x%lx bsize %ld "
+                "blocks %llu bfree %llu bavail %llu files %llu ffree %llu "
+                "fsid %llu namelen %ld\n",
+                fid->fid, (long unsigned int)sb->type, (long int)sb->bsize,
+                sb->blocks, sb->bfree, sb->bavail, sb->files,  sb->ffree,
+                sb->fsid, (long int)sb->namelen);
+
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_statfs);
+
+int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid, char *name)
+{
+        int err;
+        struct p9_req_t *req;
+        struct p9_client *clnt;
+
+        err = 0;
+        clnt = fid->clnt;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TRENAME fid %d newdirfid %d name %s\n",
+                        fid->fid, newdirfid->fid, name);
+
+        req = p9_client_rpc(clnt, P9_TRENAME, "dds", fid->fid,
+                        newdirfid->fid, name);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RRENAME fid %d\n", fid->fid);
+
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_rename);
+
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index e7541d5b0118..149f82160130 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -341,7 +341,8 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
                         }
                         break;
                 case '?':
-                        if (proto_version != p9_proto_2000u)
+                        if ((proto_version != p9_proto_2000u) &&
+                                (proto_version != p9_proto_2000L))
                                 return 0;
                         break;
                 default:
@@ -393,7 +394,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
                                 const char *sptr = va_arg(ap, const char *);
                                 int16_t len = 0;
                                 if (sptr)
-                                        len = MIN(strlen(sptr), USHORT_MAX);
+                                        len = MIN(strlen(sptr), USHRT_MAX);
 
                                 errcode = p9pdu_writef(pdu, proto_version,
                                                                 "w", len);
@@ -488,7 +489,8 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
                         }
                         break;
                 case '?':
-                        if (proto_version != p9_proto_2000u)
+                        if ((proto_version != p9_proto_2000u) &&
+                                (proto_version != p9_proto_2000L))
                                 return 0;
                         break;
                 default:
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 7eb78ecc1618..dcfbe99ff81c 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -137,7 +137,7 @@ static void req_done(struct virtqueue *vq)
 
         P9_DPRINTK(P9_DEBUG_TRANS, ": request done\n");
 
-        while ((rc = chan->vq->vq_ops->get_buf(chan->vq, &len)) != NULL) {
+        while ((rc = virtqueue_get_buf(chan->vq, &len)) != NULL) {
                 P9_DPRINTK(P9_DEBUG_TRANS, ": rc %p\n", rc);
                 P9_DPRINTK(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag);
                 req = p9_tag_lookup(chan->client, rc->tag);
@@ -209,13 +209,13 @@ p9_virtio_request(struct p9_client *client, struct p9_req_t *req)
 
         req->status = REQ_STATUS_SENT;
 
-        if (chan->vq->vq_ops->add_buf(chan->vq, chan->sg, out, in, req->tc) < 0) {
+        if (virtqueue_add_buf(chan->vq, chan->sg, out, in, req->tc) < 0) {
                 P9_DPRINTK(P9_DEBUG_TRANS,
                         "9p debug: virtio rpc add_buf returned failure");
                 return -EIO;
         }
 
-        chan->vq->vq_ops->kick(chan->vq);
+        virtqueue_kick(chan->vq);
 
         P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio request kicked\n");
         return 0;
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index dd321e39e621..486b8f3861d2 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -659,7 +659,7 @@ static struct attribute_group bridge_group = {
  *
  * Returns the number of bytes read.
  */
-static ssize_t brforward_read(struct kobject *kobj,
+static ssize_t brforward_read(struct file *filp, struct kobject *kobj,
                               struct bin_attribute *bin_attr,
                               char *buf, loff_t off, size_t count)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index 07a48e2bf7db..1845b08c624e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1006,15 +1006,10 @@ int dev_change_name(struct net_device *dev, const char *newname)
                 return err;
 
 rollback:
-        /* For now only devices in the initial network namespace
-         * are in sysfs.
-         */
-        if (net_eq(net, &init_net)) {
-                ret = device_rename(&dev->dev, dev->name);
-                if (ret) {
-                        memcpy(dev->name, oldname, IFNAMSIZ);
-                        return ret;
-                }
+        ret = device_rename(&dev->dev, dev->name);
+        if (ret) {
+                memcpy(dev->name, oldname, IFNAMSIZ);
+                return ret;
         }
 
         write_lock_bh(&dev_base_lock);
@@ -4998,8 +4993,6 @@ int register_netdevice(struct net_device *dev)
         if (dev->features & NETIF_F_SG)
                 dev->features |= NETIF_F_GSO;
 
-        netdev_initialize_kobject(dev);
-
         ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev);
         ret = notifier_to_errno(ret);
         if (ret)
@@ -5551,15 +5544,6 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
         if (dev->features & NETIF_F_NETNS_LOCAL)
                 goto out;
 
-#ifdef CONFIG_SYSFS
-        /* Don't allow real devices to be moved when sysfs
-         * is enabled.
-         */
-        err = -EINVAL;
-        if (dev->dev.parent)
-                goto out;
-#endif
-
         /* Ensure the device has been registrered */
         err = -EINVAL;
         if (dev->reg_state != NETREG_REGISTERED)
@@ -5610,8 +5594,6 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
         dev_uc_flush(dev);
         dev_mc_flush(dev);
 
-        netdev_unregister_kobject(dev);
-
         /* Actually switch the network namespace */
         dev_net_set(dev, net);
 
@@ -5624,7 +5606,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
         }
 
         /* Fixup kobjects */
-        err = netdev_register_kobject(dev);
+        err = device_rename(&dev->dev, dev->name);
         WARN_ON(err);
 
         /* Add the device back in the hashes */
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index c57c4b228bb5..99e7052d7323 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -14,7 +14,9 @@
 #include <linux/netdevice.h>
 #include <linux/if_arp.h>
 #include <linux/slab.h>
+#include <linux/nsproxy.h>
 #include <net/sock.h>
+#include <net/net_namespace.h>
 #include <linux/rtnetlink.h>
 #include <linux/wireless.h>
 #include <linux/vmalloc.h>
@@ -467,6 +469,7 @@ static struct attribute_group wireless_group = {
         .attrs = wireless_attrs,
 };
 #endif
+#endif /* CONFIG_SYSFS */
 
 #ifdef CONFIG_RPS
 /*
@@ -766,7 +769,38 @@ static void rx_queue_remove_kobjects(struct net_device *net)
         kset_unregister(net->queues_kset);
 }
 #endif /* CONFIG_RPS */
-#endif /* CONFIG_SYSFS */
+
+static const void *net_current_ns(void)
+{
+        return current->nsproxy->net_ns;
+}
+
+static const void *net_initial_ns(void)
+{
+        return &init_net;
+}
+
+static const void *net_netlink_ns(struct sock *sk)
+{
+        return sock_net(sk);
+}
+
+static struct kobj_ns_type_operations net_ns_type_operations = {
+        .type = KOBJ_NS_TYPE_NET,
+        .current_ns = net_current_ns,
+        .netlink_ns = net_netlink_ns,
+        .initial_ns = net_initial_ns,
+};
+
+static void net_kobj_ns_exit(struct net *net)
+{
+        kobj_ns_exit(KOBJ_NS_TYPE_NET, net);
+}
+
+static struct pernet_operations kobj_net_ops = {
+        .exit = net_kobj_ns_exit,
+};
+
 
 #ifdef CONFIG_HOTPLUG
 static int netdev_uevent(struct device *d, struct kobj_uevent_env *env)
@@ -774,9 +808,6 @@ static int netdev_uevent(struct device *d, struct kobj_uevent_env *env)
         struct net_device *dev = to_net_dev(d);
         int retval;
 
-        if (!net_eq(dev_net(dev), &init_net))
-                return 0;
-
         /* pass interface to uevent. */
         retval = add_uevent_var(env, "INTERFACE=%s", dev->name);
         if (retval)
@@ -806,6 +837,13 @@ static void netdev_release(struct device *d)
         kfree((char *)dev - dev->padded);
 }
 
+static const void *net_namespace(struct device *d)
+{
+        struct net_device *dev;
+        dev = container_of(d, struct net_device, dev);
+        return dev_net(dev);
+}
+
 static struct class net_class = {
         .name = "net",
         .dev_release = netdev_release,
@@ -815,6 +853,8 @@ static struct class net_class = {
 #ifdef CONFIG_HOTPLUG
         .dev_uevent = netdev_uevent,
 #endif
+        .ns_type = &net_ns_type_operations,
+        .namespace = net_namespace,
 };
 
 /* Delete sysfs entries but hold kobject reference until after all
@@ -826,9 +866,6 @@ void netdev_unregister_kobject(struct net_device * net)
 
         kobject_get(&dev->kobj);
 
-        if (!net_eq(dev_net(net), &init_net))
-                return;
-
 #ifdef CONFIG_RPS
         rx_queue_remove_kobjects(net);
 #endif
@@ -843,6 +880,7 @@ int netdev_register_kobject(struct net_device *net)
         const struct attribute_group **groups = net->sysfs_groups;
         int error = 0;
 
+        device_initialize(dev);
         dev->class = &net_class;
         dev->platform_data = net;
         dev->groups = groups;
@@ -865,9 +903,6 @@ int netdev_register_kobject(struct net_device *net)
 #endif
 #endif /* CONFIG_SYSFS */
 
-        if (!net_eq(dev_net(net), &init_net))
-                return 0;
-
         error = device_add(dev);
         if (error)
                 return error;
@@ -896,13 +931,9 @@ void netdev_class_remove_file(struct class_attribute *class_attr)
 EXPORT_SYMBOL(netdev_class_create_file);
 EXPORT_SYMBOL(netdev_class_remove_file);
 
-void netdev_initialize_kobject(struct net_device *net)
-{
-        struct device *device = &(net->dev);
-        device_initialize(device);
-}
-
 int netdev_kobject_init(void)
 {
+        kobj_ns_type_register(&net_ns_type_operations);
+        register_pernet_subsys(&kobj_net_ops);
         return class_register(&net_class);
 }
diff --git a/net/core/net-sysfs.h b/net/core/net-sysfs.h
index 14e7524260b3..805555e8b187 100644
--- a/net/core/net-sysfs.h
+++ b/net/core/net-sysfs.h
@@ -4,5 +4,4 @@
 int netdev_kobject_init(void);
 int netdev_register_kobject(struct net_device *);
 void netdev_unregister_kobject(struct net_device *);
-void netdev_initialize_kobject(struct net_device *);
 #endif
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4c11000a96aa..f8abf68e3988 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1406,12 +1406,13 @@ new_page:
 /*
  * Fill page/offset/length into spd, if it can hold more pages.
  */
-static inline int spd_fill_page(struct splice_pipe_desc *spd, struct page *page,
+static inline int spd_fill_page(struct splice_pipe_desc *spd,
+                                struct pipe_inode_info *pipe, struct page *page,
                                 unsigned int *len, unsigned int offset,
                                 struct sk_buff *skb, int linear,
                                 struct sock *sk)
 {
-        if (unlikely(spd->nr_pages == PIPE_BUFFERS))
+        if (unlikely(spd->nr_pages == pipe->buffers))
                 return 1;
 
         if (linear) {
@@ -1447,7 +1448,8 @@ static inline int __splice_segment(struct page *page, unsigned int poff,
                                    unsigned int plen, unsigned int *off,
                                    unsigned int *len, struct sk_buff *skb,
                                    struct splice_pipe_desc *spd, int linear,
-                                   struct sock *sk)
+                                   struct sock *sk,
+                                   struct pipe_inode_info *pipe)
 {
         if (!*len)
                 return 1;
@@ -1470,7 +1472,7 @@ static inline int __splice_segment(struct page *page, unsigned int poff,
                 /* the linear region may spread across several pages  */
                 flen = min_t(unsigned int, flen, PAGE_SIZE - poff);
 
-                if (spd_fill_page(spd, page, &flen, poff, skb, linear, sk))
+                if (spd_fill_page(spd, pipe, page, &flen, poff, skb, linear, sk))
                         return 1;
 
                 __segment_seek(&page, &poff, &plen, flen);
@@ -1485,9 +1487,9 @@ static inline int __splice_segment(struct page *page, unsigned int poff,
  * Map linear and fragment data from the skb to spd. It reports failure if the
  * pipe is full or if we already spliced the requested length.
  */
-static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
-                             unsigned int *len, struct splice_pipe_desc *spd,
-                             struct sock *sk)
+static int __skb_splice_bits(struct sk_buff *skb, struct pipe_inode_info *pipe,
+                             unsigned int *offset, unsigned int *len,
+                             struct splice_pipe_desc *spd, struct sock *sk)
 {
         int seg;
 
@@ -1497,7 +1499,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
         if (__splice_segment(virt_to_page(skb->data),
                              (unsigned long) skb->data & (PAGE_SIZE - 1),
                              skb_headlen(skb),
-                             offset, len, skb, spd, 1, sk))
+                             offset, len, skb, spd, 1, sk, pipe))
                 return 1;
 
         /*
@@ -1507,7 +1509,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
                 const skb_frag_t *f = &skb_shinfo(skb)->frags[seg];
 
                 if (__splice_segment(f->page, f->page_offset, f->size,
-                                     offset, len, skb, spd, 0, sk))
+                                     offset, len, skb, spd, 0, sk, pipe))
                         return 1;
         }
 
@@ -1524,8 +1526,8 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
                     struct pipe_inode_info *pipe, unsigned int tlen,
                     unsigned int flags)
 {
-        struct partial_page partial[PIPE_BUFFERS];
-        struct page *pages[PIPE_BUFFERS];
+        struct partial_page partial[PIPE_DEF_BUFFERS];
+        struct page *pages[PIPE_DEF_BUFFERS];
         struct splice_pipe_desc spd = {
                 .pages = pages,
                 .partial = partial,
@@ -1535,12 +1537,16 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
         };
         struct sk_buff *frag_iter;
         struct sock *sk = skb->sk;
+        int ret = 0;
+
+        if (splice_grow_spd(pipe, &spd))
+                return -ENOMEM;
 
         /*
          * __skb_splice_bits() only fails if the output has no room left,
          * so no point in going over the frag_list for the error case.
          */
-        if (__skb_splice_bits(skb, &offset, &tlen, &spd, sk))
+        if (__skb_splice_bits(skb, pipe, &offset, &tlen, &spd, sk))
                 goto done;
         else if (!tlen)
                 goto done;
@@ -1551,14 +1557,12 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
         skb_walk_frags(skb, frag_iter) {
                 if (!tlen)
                         break;
-                if (__skb_splice_bits(frag_iter, &offset, &tlen, &spd, sk))
+                if (__skb_splice_bits(frag_iter, pipe, &offset, &tlen, &spd, sk))
                         break;
         }
 
 done:
         if (spd.nr_pages) {
-                int ret;
-
                 /*
                  * Drop the socket lock, otherwise we have reverse
                  * locking dependencies between sk_lock and i_mutex
@@ -1571,10 +1575,10 @@ done:
                 release_sock(sk);
                 ret = splice_to_pipe(pipe, &spd);
                 lock_sock(sk);
-                return ret;
         }
 
-        return 0;
+        splice_shrink_spd(pipe, &spd);
+        return ret;
 }
 
 /**
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 1b08cae9c65b..07395f861d35 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -296,7 +296,7 @@ static inline u8 dccp_ndp_len(const u64 ndp)
 {
         if (likely(ndp <= 0xFF))
                 return 1;
-        return likely(ndp <= USHORT_MAX) ? 2 : (ndp <= UINT_MAX ? 4 : 6);
+        return likely(ndp <= USHRT_MAX) ? 2 : (ndp <= UINT_MAX ? 4 : 6);
 }
 
 int dccp_insert_option(struct sock *sk, struct sk_buff *skb,
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 9de6a698f91d..baeec29fe0f1 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1686,8 +1686,8 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
                         return -ENOPROTOOPT;
                 if (val != 0 && val < 8) /* Illegal coverage: use default (8) */
                         val = 8;
-                else if (val > USHORT_MAX)
-                        val = USHORT_MAX;
+                else if (val > USHRT_MAX)
+                        val = USHRT_MAX;
                 up->pcslen = val;
                 up->pcflag |= UDPLITE_SEND_CC;
                 break;
@@ -1700,8 +1700,8 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
                         return -ENOPROTOOPT;
                 if (val != 0 && val < 8) /* Avoid silly minimal values.       */
                         val = 8;
-                else if (val > USHORT_MAX)
-                        val = USHORT_MAX;
+                else if (val > USHRT_MAX)
+                        val = USHRT_MAX;
                 up->pcrlen = val;
                 up->pcflag |= UDPLITE_RECV_CC;
                 break;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 730197591ab5..ba9360a475b0 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -259,7 +259,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
         skb_queue_head_init(&sta->tx_filtered);
 
         for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
-                sta->last_seq_ctrl[i] = cpu_to_le16(USHORT_MAX);
+                sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX);
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
         printk(KERN_DEBUG "%s: Allocated STA %pM\n",
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 6464a1972a69..a2eb965207d3 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -978,6 +978,8 @@ struct netlink_broadcast_data {
         int delivered;
         gfp_t allocation;
         struct sk_buff *skb, *skb2;
+        int (*tx_filter)(struct sock *dsk, struct sk_buff *skb, void *data);
+        void *tx_data;
 };
 
 static inline int do_one_broadcast(struct sock *sk,
@@ -1020,6 +1022,9 @@ static inline int do_one_broadcast(struct sock *sk,
                 p->failure = 1;
                 if (nlk->flags & NETLINK_BROADCAST_SEND_ERROR)
                         p->delivery_failure = 1;
+        } else if (p->tx_filter && p->tx_filter(sk, p->skb2, p->tx_data)) {
+                kfree_skb(p->skb2);
+                p->skb2 = NULL;
         } else if (sk_filter(sk, p->skb2)) {
                 kfree_skb(p->skb2);
                 p->skb2 = NULL;
@@ -1038,8 +1043,10 @@ out:
         return 0;
 }
 
-int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
-                      u32 group, gfp_t allocation)
+int netlink_broadcast_filtered(struct sock *ssk, struct sk_buff *skb, u32 pid,
+        u32 group, gfp_t allocation,
+        int (*filter)(struct sock *dsk, struct sk_buff *skb, void *data),
+        void *filter_data)
 {
         struct net *net = sock_net(ssk);
         struct netlink_broadcast_data info;
@@ -1059,6 +1066,8 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
         info.allocation = allocation;
         info.skb = skb;
         info.skb2 = NULL;
+        info.tx_filter = filter;
+        info.tx_data = filter_data;
 
         /* While we sleep in clone, do not allow to change socket list */
 
@@ -1083,6 +1092,14 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
         }
         return -ESRCH;
 }
+EXPORT_SYMBOL(netlink_broadcast_filtered);
+
+int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
+                      u32 group, gfp_t allocation)
+{
+        return netlink_broadcast_filtered(ssk, skb, pid, group, allocation,
+                NULL, NULL);
+}
 EXPORT_SYMBOL(netlink_broadcast);
 
 struct netlink_set_err_data {
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index c2173ebdb33c..58de76c8540c 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -34,6 +34,7 @@
 #include <linux/sunrpc/cache.h>
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
+#include <linux/smp_lock.h>
 
 #define  RPCDBG_FACILITY RPCDBG_CACHE
 
@@ -1545,12 +1546,18 @@ static unsigned int cache_poll_pipefs(struct file *filp, poll_table *wait)
         return cache_poll(filp, wait, cd);
 }
 
-static int cache_ioctl_pipefs(struct inode *inode, struct file *filp,
+static long cache_ioctl_pipefs(struct file *filp,
                               unsigned int cmd, unsigned long arg)
 {
+        struct inode *inode = filp->f_dentry->d_inode;
         struct cache_detail *cd = RPC_I(inode)->private;
+        long ret;
 
-        return cache_ioctl(inode, filp, cmd, arg, cd);
+        lock_kernel();
+        ret = cache_ioctl(inode, filp, cmd, arg, cd);
+        unlock_kernel();
+
+        return ret;
 }
 
 static int cache_open_pipefs(struct inode *inode, struct file *filp)
@@ -1573,7 +1580,7 @@ const struct file_operations cache_file_operations_pipefs = {
         .read           = cache_read_pipefs,
         .write          = cache_write_pipefs,
         .poll           = cache_poll_pipefs,
-        .ioctl          = cache_ioctl_pipefs, /* for FIONREAD */
+        .unlocked_ioctl = cache_ioctl_pipefs, /* for FIONREAD */
         .open           = cache_open_pipefs,
         .release        = cache_release_pipefs,
 };
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 20e30c6f8355..95ccbcf45d3e 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -27,6 +27,7 @@
 #include <linux/workqueue.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
 #include <linux/sunrpc/cache.h>
+#include <linux/smp_lock.h>
 
 static struct vfsmount *rpc_mount __read_mostly;
 static int rpc_mount_count;
@@ -309,8 +310,7 @@ rpc_pipe_poll(struct file *filp, struct poll_table_struct *wait)
 }
 
 static int
-rpc_pipe_ioctl(struct inode *ino, struct file *filp,
-                unsigned int cmd, unsigned long arg)
+rpc_pipe_ioctl_unlocked(struct file *filp, unsigned int cmd, unsigned long arg)
 {
         struct rpc_inode *rpci = RPC_I(filp->f_path.dentry->d_inode);
         int len;
@@ -331,13 +331,25 @@ rpc_pipe_ioctl(struct inode *ino, struct file *filp,
         }
 }
 
+static long
+rpc_pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+        long ret;
+
+        lock_kernel();
+        ret = rpc_pipe_ioctl_unlocked(filp, cmd, arg);
+        unlock_kernel();
+
+        return ret;
+}
+
 static const struct file_operations rpc_pipe_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .read           = rpc_pipe_read,
         .write          = rpc_pipe_write,
         .poll           = rpc_pipe_poll,
-        .ioctl          = rpc_pipe_ioctl,
+        .unlocked_ioctl = rpc_pipe_ioctl,
         .open           = rpc_pipe_open,
         .release        = rpc_pipe_release,
 };
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 121105355f60..dac219a56ae1 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -783,7 +783,7 @@ static int rpcb_dec_getport(struct rpc_rqst *req, __be32 *p,
         port = ntohl(*p);
         dprintk("RPC: %5u PMAP_%s result: %lu\n", task->tk_pid,
                         task->tk_msg.rpc_proc->p_name, port);
-        if (unlikely(port > USHORT_MAX))
+        if (unlikely(port > USHRT_MAX))
                 return -EIO;
 
         rpcb->r_port = port;
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 3fc325399ee4..dcd0132396ba 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -166,7 +166,6 @@ EXPORT_SYMBOL_GPL(xprt_unregister_transport);
 int xprt_load_transport(const char *transport_name)
 {
         struct xprt_class *t;
-        char module_name[sizeof t->name + 5];
         int result;
 
         result = 0;
@@ -178,9 +177,7 @@ int xprt_load_transport(const char *transport_name)
                 }
         }
         spin_unlock(&xprt_list_lock);
-        strcpy(module_name, "xprt");
-        strncat(module_name, transport_name, sizeof t->name);
-        result = request_module(module_name);
+        result = request_module("xprt%s", transport_name);
 out:
         return result;
 }