Merge commit 'v2.6.37-rc3' into sched/core

Merge reason: Pick up latest fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

15 files changed, 131 insertions, 47 deletions

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 0e8157e..1c7a2ec 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -540,8 +540,7 @@ static void prepare_write_message(struct ceph_connection *con)
 		/* initialize page iterator */
 		con->out_msg_pos.page = 0;
 		if (m->pages)
-			con->out_msg_pos.page_pos =
-				le16_to_cpu(m->hdr.data_off) & ~PAGE_MASK;
+			con->out_msg_pos.page_pos = m->page_alignment;
 		else
 			con->out_msg_pos.page_pos = 0;
 		con->out_msg_pos.data_pos = 0;
@@ -1491,7 +1490,7 @@ static int read_partial_message(struct ceph_connection *con)
 	struct ceph_msg *m = con->in_msg;
 	int ret;
 	int to, left;
-	unsigned front_len, middle_len, data_len, data_off;
+	unsigned front_len, middle_len, data_len;
 	int datacrc = con->msgr->nocrc;
 	int skip;
 	u64 seq;
@@ -1527,19 +1526,17 @@ static int read_partial_message(struct ceph_connection *con)
 	data_len = le32_to_cpu(con->in_hdr.data_len);
 	if (data_len > CEPH_MSG_MAX_DATA_LEN)
 		return -EIO;
-	data_off = le16_to_cpu(con->in_hdr.data_off);
 
 	/* verify seq# */
 	seq = le64_to_cpu(con->in_hdr.seq);
 	if ((s64)seq - (s64)con->in_seq < 1) {
-		pr_info("skipping %s%lld %s seq %lld, expected %lld\n",
+		pr_info("skipping %s%lld %s seq %lld expected %lld\n",
 			ENTITY_NAME(con->peer_name),
 			ceph_pr_addr(&con->peer_addr.in_addr),
 			seq, con->in_seq + 1);
 		con->in_base_pos = -front_len - middle_len - data_len -
 			sizeof(m->footer);
 		con->in_tag = CEPH_MSGR_TAG_READY;
-		con->in_seq++;
 		return 0;
 	} else if ((s64)seq - (s64)con->in_seq > 1) {
 		pr_err("read_partial_message bad seq %lld expected %lld\n",
@@ -1576,7 +1573,7 @@ static int read_partial_message(struct ceph_connection *con)
 
 		con->in_msg_pos.page = 0;
 		if (m->pages)
-			con->in_msg_pos.page_pos = data_off & ~PAGE_MASK;
+			con->in_msg_pos.page_pos = m->page_alignment;
 		else
 			con->in_msg_pos.page_pos = 0;
 		con->in_msg_pos.data_pos = 0;
@@ -2301,6 +2298,7 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags)
 
 	/* data */
 	m->nr_pages = 0;
+	m->page_alignment = 0;
 	m->pages = NULL;
 	m->pagelist = NULL;
 	m->bio = NULL;
@@ -2370,6 +2368,7 @@ static struct ceph_msg *ceph_alloc_msg(struct ceph_connection *con,
 			       type, front_len);
 			return NULL;
 		}
+		msg->page_alignment = le16_to_cpu(hdr->data_off);
 	}
 	memcpy(&msg->hdr, &con->in_hdr, sizeof(con->in_hdr));
 
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 7939199..3e20a12 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -71,6 +71,7 @@ void ceph_calc_raw_layout(struct ceph_osd_client *osdc,
 		op->extent.length = objlen;
 	}
 	req->r_num_pages = calc_pages_for(off, *plen);
+	req->r_page_alignment = off & ~PAGE_MASK;
 	if (op->op == CEPH_OSD_OP_WRITE)
 		op->payload_len = *plen;
 
@@ -390,6 +391,8 @@ void ceph_osdc_build_request(struct ceph_osd_request *req,
 		req->r_request->hdr.data_len = cpu_to_le32(data_len);
 	}
 
+	req->r_request->page_alignment = req->r_page_alignment;
+
 	BUG_ON(p > msg->front.iov_base + msg->front.iov_len);
 	msg_size = p - msg->front.iov_base;
 	msg->front.iov_len = msg_size;
@@ -419,7 +422,8 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
 					       u32 truncate_seq,
 					       u64 truncate_size,
 					       struct timespec *mtime,
-					       bool use_mempool, int num_reply)
+					       bool use_mempool, int num_reply,
+					       int page_align)
 {
 	struct ceph_osd_req_op ops[3];
 	struct ceph_osd_request *req;
@@ -447,6 +451,10 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
 	calc_layout(osdc, vino, layout, off, plen, req, ops);
 	req->r_file_layout = *layout;  /* keep a copy */
 
+	/* in case it differs from natural alignment that calc_layout
+	   filled in for us */
+	req->r_page_alignment = page_align;
+
 	ceph_osdc_build_request(req, off, plen, ops,
 				snapc,
 				mtime,
@@ -1489,7 +1497,7 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc,
 			struct ceph_vino vino, struct ceph_file_layout *layout,
 			u64 off, u64 *plen,
 			u32 truncate_seq, u64 truncate_size,
-			struct page **pages, int num_pages)
+			struct page **pages, int num_pages, int page_align)
 {
 	struct ceph_osd_request *req;
 	int rc = 0;
@@ -1499,15 +1507,15 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc,
 	req = ceph_osdc_new_request(osdc, layout, vino, off, plen,
 				    CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
 				    NULL, 0, truncate_seq, truncate_size, NULL,
-				    false, 1);
+				    false, 1, page_align);
 	if (!req)
 		return -ENOMEM;
 
 	/* it may be a short read due to an object boundary */
 	req->r_pages = pages;
 
-	dout("readpages  final extent is %llu~%llu (%d pages)\n",
-	     off, *plen, req->r_num_pages);
+	dout("readpages  final extent is %llu~%llu (%d pages align %d)\n",
+	     off, *plen, req->r_num_pages, page_align);
 
 	rc = ceph_osdc_start_request(osdc, req, false);
 	if (!rc)
@@ -1533,6 +1541,7 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
 {
 	struct ceph_osd_request *req;
 	int rc = 0;
+	int page_align = off & ~PAGE_MASK;
 
 	BUG_ON(vino.snap != CEPH_NOSNAP);
 	req = ceph_osdc_new_request(osdc, layout, vino, off, &len,
@@ -1541,7 +1550,7 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
 					    CEPH_OSD_FLAG_WRITE,
 				    snapc, do_sync,
 				    truncate_seq, truncate_size, mtime,
-				    nofail, 1);
+				    nofail, 1, page_align);
 	if (!req)
 		return -ENOMEM;
 
@@ -1638,8 +1647,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
 	m = ceph_msg_get(req->r_reply);
 
 	if (data_len > 0) {
-		unsigned data_off = le16_to_cpu(hdr->data_off);
-		int want = calc_pages_for(data_off & ~PAGE_MASK, data_len);
+		int want = calc_pages_for(req->r_page_alignment, data_len);
 
 		if (unlikely(req->r_num_pages < want)) {
 			pr_warning("tid %lld reply %d > expected %d pages\n",
@@ -1651,6 +1659,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
 		}
 		m->pages = req->r_pages;
 		m->nr_pages = req->r_num_pages;
+		m->page_alignment = req->r_page_alignment;
 #ifdef CONFIG_BLOCK
 		m->bio = req->r_bio;
 #endif
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 54caf06..ac34fee 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -13,8 +13,7 @@
  * build a vector of user pages
  */
 struct page **ceph_get_direct_page_vector(const char __user *data,
-						 int num_pages,
-						 loff_t off, size_t len)
+					  int num_pages)
 {
 	struct page **pages;
 	int rc;
diff --git a/net/core/filter.c b/net/core/filter.c
index 23e9b2a..c1ee800 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -589,7 +589,7 @@ int sk_chk_filter(struct sock_filter *filter, int flen)
 EXPORT_SYMBOL(sk_chk_filter);
 
 /**
- * 	sk_filter_rcu_release: Release a socket filter by rcu_head
+ * 	sk_filter_rcu_release - Release a socket filter by rcu_head
  *	@rcu: rcu_head that contains the sk_filter to free
  */
 static void sk_filter_rcu_release(struct rcu_head *rcu)
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index a5ff5a8..7f902ca 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -712,15 +712,21 @@ static void rx_queue_release(struct kobject *kobj)
 
 
 	map = rcu_dereference_raw(queue->rps_map);
-	if (map)
+	if (map) {
+		RCU_INIT_POINTER(queue->rps_map, NULL);
 		call_rcu(&map->rcu, rps_map_release);
+	}
 
 	flow_table = rcu_dereference_raw(queue->rps_flow_table);
-	if (flow_table)
+	if (flow_table) {
+		RCU_INIT_POINTER(queue->rps_flow_table, NULL);
 		call_rcu(&flow_table->rcu, rps_dev_flow_table_release);
+	}
 
 	if (atomic_dec_and_test(&first->count))
 		kfree(first);
+	else
+		memset(kobj, 0, sizeof(*kobj));
 }
 
 static struct kobj_type rx_queue_ktype = {
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 96bc7f9..e5d1a44 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -569,6 +569,9 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 		/* No need to clone since we're just using its address. */
 		rt2 = rt;
 
+		if (!fl.nl_u.ip4_u.saddr)
+			fl.nl_u.ip4_u.saddr = rt->rt_src;
+
 		err = xfrm_lookup(net, (struct dst_entry **)&rt, &fl, NULL, 0);
 		switch (err) {
 		case 0:
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index b41ce0f..2fc35b3 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -98,7 +98,11 @@
 #endif
 
 #define	INFINITY_LIFE_TIME	0xFFFFFFFF
-#define TIME_DELTA(a, b) ((unsigned long)((long)(a) - (long)(b)))
+
+static inline u32 cstamp_delta(unsigned long cstamp)
+{
+	return (cstamp - INITIAL_JIFFIES) * 100UL / HZ;
+}
 
 #define ADDRCONF_TIMER_FUZZ_MINUS	(HZ > 50 ? HZ/50 : 1)
 #define ADDRCONF_TIMER_FUZZ		(HZ / 4)
@@ -3444,10 +3448,8 @@ static int put_cacheinfo(struct sk_buff *skb, unsigned long cstamp,
 {
 	struct ifa_cacheinfo ci;
 
-	ci.cstamp = (u32)(TIME_DELTA(cstamp, INITIAL_JIFFIES) / HZ * 100
-			+ TIME_DELTA(cstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
-	ci.tstamp = (u32)(TIME_DELTA(tstamp, INITIAL_JIFFIES) / HZ * 100
-			+ TIME_DELTA(tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
+	ci.cstamp = cstamp_delta(cstamp);
+	ci.tstamp = cstamp_delta(tstamp);
 	ci.ifa_prefered = preferred;
 	ci.ifa_valid = valid;
 
@@ -3798,8 +3800,10 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
 	array[DEVCONF_AUTOCONF] = cnf->autoconf;
 	array[DEVCONF_DAD_TRANSMITS] = cnf->dad_transmits;
 	array[DEVCONF_RTR_SOLICITS] = cnf->rtr_solicits;
-	array[DEVCONF_RTR_SOLICIT_INTERVAL] = cnf->rtr_solicit_interval;
-	array[DEVCONF_RTR_SOLICIT_DELAY] = cnf->rtr_solicit_delay;
+	array[DEVCONF_RTR_SOLICIT_INTERVAL] =
+		jiffies_to_msecs(cnf->rtr_solicit_interval);
+	array[DEVCONF_RTR_SOLICIT_DELAY] =
+		jiffies_to_msecs(cnf->rtr_solicit_delay);
 	array[DEVCONF_FORCE_MLD_VERSION] = cnf->force_mld_version;
 #ifdef CONFIG_IPV6_PRIVACY
 	array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr;
@@ -3813,7 +3817,8 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
 	array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
 #ifdef CONFIG_IPV6_ROUTER_PREF
 	array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
-	array[DEVCONF_RTR_PROBE_INTERVAL] = cnf->rtr_probe_interval;
+	array[DEVCONF_RTR_PROBE_INTERVAL] =
+		jiffies_to_msecs(cnf->rtr_probe_interval);
 #ifdef CONFIG_IPV6_ROUTE_INFO
 	array[DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN] = cnf->accept_ra_rt_info_max_plen;
 #endif
@@ -3929,10 +3934,9 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
 	NLA_PUT_U32(skb, IFLA_INET6_FLAGS, idev->if_flags);
 
 	ci.max_reasm_len = IPV6_MAXPLEN;
-	ci.tstamp = (__u32)(TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) / HZ * 100
-		    + TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
-	ci.reachable_time = idev->nd_parms->reachable_time;
-	ci.retrans_time = idev->nd_parms->retrans_time;
+	ci.tstamp = cstamp_delta(idev->tstamp);
+	ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time);
+	ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time);
 	NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
 
 	nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 7f097989..a6de305 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -45,7 +45,6 @@
 #include <linux/capability.h>
 #include <linux/module.h>
 #include <linux/types.h>
-#include <linux/smp_lock.h>
 #include <linux/socket.h>
 #include <linux/sockios.h>
 #include <linux/slab.h>
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 7fa8637..7c567b8 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -15,7 +15,6 @@
 
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include "irnet_ppp.h"		/* Private header */
 /* Please put other headers in irnet.h - Thanks */
 
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index 285761e..f6054f9 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -550,22 +550,30 @@ EXPORT_SYMBOL(irttp_close_tsap);
  */
 int irttp_udata_request(struct tsap_cb *self, struct sk_buff *skb)
 {
+	int ret;
+
 	IRDA_ASSERT(self != NULL, return -1;);
 	IRDA_ASSERT(self->magic == TTP_TSAP_MAGIC, return -1;);
 	IRDA_ASSERT(skb != NULL, return -1;);
 
 	IRDA_DEBUG(4, "%s()\n", __func__);
 
+	/* Take shortcut on zero byte packets */
+	if (skb->len == 0) {
+		ret = 0;
+		goto err;
+	}
+
 	/* Check that nothing bad happens */
-	if ((skb->len == 0) || (!self->connected)) {
-		IRDA_DEBUG(1, "%s(), No data, or not connected\n",
-			   __func__);
+	if (!self->connected) {
+		IRDA_WARNING("%s(), Not connected\n", __func__);
+		ret = -ENOTCONN;
 		goto err;
 	}
 
 	if (skb->len > self->max_seg_size) {
-		IRDA_DEBUG(1, "%s(), UData is too large for IrLAP!\n",
-			   __func__);
+		IRDA_ERROR("%s(), UData is too large for IrLAP!\n", __func__);
+		ret = -EMSGSIZE;
 		goto err;
 	}
 
@@ -576,7 +584,7 @@ int irttp_udata_request(struct tsap_cb *self, struct sk_buff *skb)
 
 err:
 	dev_kfree_skb(skb);
-	return -1;
+	return ret;
 }
 EXPORT_SYMBOL(irttp_udata_request);
 
@@ -599,9 +607,15 @@ int irttp_data_request(struct tsap_cb *self, struct sk_buff *skb)
 	IRDA_DEBUG(2, "%s() : queue len = %d\n", __func__,
 		   skb_queue_len(&self->tx_queue));
 
+	/* Take shortcut on zero byte packets */
+	if (skb->len == 0) {
+		ret = 0;
+		goto err;
+	}
+
 	/* Check that nothing bad happens */
-	if ((skb->len == 0) || (!self->connected)) {
-		IRDA_WARNING("%s: No data, or not connected\n", __func__);
+	if (!self->connected) {
+		IRDA_WARNING("%s: Not connected\n", __func__);
 		ret = -ENOTCONN;
 		goto err;
 	}
diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig
index a22dac2..70bd1d0 100644
--- a/net/netfilter/ipvs/Kconfig
+++ b/net/netfilter/ipvs/Kconfig
@@ -4,6 +4,7 @@
 menuconfig IP_VS
 	tristate "IP virtual server support"
 	depends on NET && INET && NETFILTER
+	depends on (NF_CONNTRACK || NF_CONNTRACK=n)
 	---help---
 	  IP Virtual Server support will let you build a high-performance
 	  virtual server based on cluster of two or more real servers. This
diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index 8920f2a..4e37c1c 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -567,7 +567,7 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 		goto out;
 	}
 
-	if (args->nr_local > (u64)UINT_MAX) {
+	if (args->nr_local > UIO_MAXIOV) {
 		ret = -EMSGSIZE;
 		goto out;
 	}
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index f71a731..80df89d 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -115,9 +115,7 @@ EXPORT_SYMBOL_GPL(svc_seq_show);
  */
 struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt)
 {
-	struct rpc_iostats *new;
-	new = kcalloc(clnt->cl_maxproc, sizeof(struct rpc_iostats), GFP_KERNEL);
-	return new;
+	return kcalloc(clnt->cl_maxproc, sizeof(struct rpc_iostats), GFP_KERNEL);
 }
 EXPORT_SYMBOL_GPL(rpc_alloc_iostats);
 
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index c82fe73..ea2ff78 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -5,7 +5,6 @@
  */
 
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index d0c92dd..17cd0c0 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -44,6 +44,38 @@ rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
 	return chan;
 }
 
+static bool can_beacon_sec_chan(struct wiphy *wiphy,
+				struct ieee80211_channel *chan,
+				enum nl80211_channel_type channel_type)
+{
+	struct ieee80211_channel *sec_chan;
+	int diff;
+
+	switch (channel_type) {
+	case NL80211_CHAN_HT40PLUS:
+		diff = 20;
+		break;
+	case NL80211_CHAN_HT40MINUS:
+		diff = -20;
+		break;
+	default:
+		return false;
+	}
+
+	sec_chan = ieee80211_get_channel(wiphy, chan->center_freq + diff);
+	if (!sec_chan)
+		return false;
+
+	/* we'll need a DFS capability later */
+	if (sec_chan->flags & (IEEE80211_CHAN_DISABLED |
+			       IEEE80211_CHAN_PASSIVE_SCAN |
+			       IEEE80211_CHAN_NO_IBSS |
+			       IEEE80211_CHAN_RADAR))
+		return false;
+
+	return true;
+}
+
 int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
 		      struct wireless_dev *wdev, int freq,
 		      enum nl80211_channel_type channel_type)
@@ -68,6 +100,28 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
 	if (!chan)
 		return -EINVAL;
 
+	/* Both channels should be able to initiate communication */
+	if (wdev && (wdev->iftype == NL80211_IFTYPE_ADHOC ||
+		     wdev->iftype == NL80211_IFTYPE_AP ||
+		     wdev->iftype == NL80211_IFTYPE_AP_VLAN ||
+		     wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
+		     wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
+		switch (channel_type) {
+		case NL80211_CHAN_HT40PLUS:
+		case NL80211_CHAN_HT40MINUS:
+			if (!can_beacon_sec_chan(&rdev->wiphy, chan,
+						 channel_type)) {
+				printk(KERN_DEBUG
+				       "cfg80211: Secondary channel not "
+				       "allowed to initiate communication\n");
+				return -EINVAL;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
 	result = rdev->ops->set_channel(&rdev->wiphy,
 					wdev ? wdev->netdev : NULL,
 					chan, channel_type);