Merge branch 'perf/urgent' into perf/core

Conflicts:
	arch/x86/kernel/cpu/perf_event.c

Merge reason: Resolve the conflict, pick up fixes

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

21 files changed, 54 insertions, 46 deletions

diff --git a/include/linux/circ_buf.h b/include/linux/circ_buf.h
index a2ed0591fb19..90f2471dc6f2 100644
--- a/include/linux/circ_buf.h
+++ b/include/linux/circ_buf.h
@@ -1,3 +1,7 @@
+/*
+ * See Documentation/circular-buffers.txt for more information.
+ */
+
 #ifndef _LINUX_CIRC_BUF_H
 #define _LINUX_CIRC_BUF_H 1
 
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 0cf725bdd2a1..fc53492b6ad7 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -73,6 +73,7 @@ enum clock_event_nofitiers {
  * @list:		list head for the management code
  * @mode:		operating mode assigned by the management code
  * @next_event:		local storage for the next event in oneshot mode
+ * @retries:		number of forced programming retries
  */
 struct clock_event_device {
 	const char		*name;
@@ -93,6 +94,7 @@ struct clock_event_device {
 	struct list_head	list;
 	enum clock_event_mode	mode;
 	ktime_t			next_event;
+	unsigned long		retries;
 };
 
 /*
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index cac84b006667..5f494b465097 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -565,17 +565,17 @@ enum {
 
 static inline int ext3_test_inode_state(struct inode *inode, int bit)
 {
-	return test_bit(bit, &EXT3_I(inode)->i_state);
+	return test_bit(bit, &EXT3_I(inode)->i_state_flags);
 }
 
 static inline void ext3_set_inode_state(struct inode *inode, int bit)
 {
-	set_bit(bit, &EXT3_I(inode)->i_state);
+	set_bit(bit, &EXT3_I(inode)->i_state_flags);
 }
 
 static inline void ext3_clear_inode_state(struct inode *inode, int bit)
 {
-	clear_bit(bit, &EXT3_I(inode)->i_state);
+	clear_bit(bit, &EXT3_I(inode)->i_state_flags);
 }
 #else
 /* Assume that user mode programs are passing in an ext3fs superblock, not
diff --git a/include/linux/ext3_fs_i.h b/include/linux/ext3_fs_i.h
index 7679acdb519a..f42c098aed8d 100644
--- a/include/linux/ext3_fs_i.h
+++ b/include/linux/ext3_fs_i.h
@@ -87,7 +87,7 @@ struct ext3_inode_info {
 	 * near to their parent directory's inode.
 	 */
 	__u32	i_block_group;
-	unsigned long	i_state;	/* Dynamic state flags for ext3 */
+	unsigned long	i_state_flags;	/* Dynamic state flags for ext3 */
 
 	/* block reservation info */
 	struct ext3_block_alloc_info *i_block_alloc_info;
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 7be0c6fbe880..c57db27ac861 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -105,7 +105,7 @@ struct fscache_operation {
 	/* operation releaser */
 	fscache_operation_release_t release;
 
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
 	const char *name;		/* operation name */
 	const char *state;		/* operation state */
 #define fscache_set_op_name(OP, N)	do { (OP)->name  = (N); } while(0)
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 1822d635be6b..16b92d008bed 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -2,6 +2,7 @@
 #define _IF_TUNNEL_H_
 
 #include <linux/types.h>
+#include <asm/byteorder.h>
 
 #ifdef __KERNEL__
 #include <linux/ip.h>
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 71ab79da7e7f..26fad187d661 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -112,12 +112,14 @@ struct resource_list {
 extern struct resource ioport_resource;
 extern struct resource iomem_resource;
 
+extern struct resource *request_resource_conflict(struct resource *root, struct resource *new);
 extern int request_resource(struct resource *root, struct resource *new);
 extern int release_resource(struct resource *new);
 void release_child_resources(struct resource *new);
 extern void reserve_region_with_split(struct resource *root,
 			     resource_size_t start, resource_size_t end,
 			     const char *name);
+extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new);
 extern int insert_resource(struct resource *parent, struct resource *new);
 extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
 extern int allocate_resource(struct resource *root, struct resource *new,
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index bc0fc795bd35..ece0b1c33816 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -102,8 +102,6 @@ union { \
 	unsigned char name##kfifo_buffer[size]; \
 	struct kfifo name = __kfifo_initializer(size, name##kfifo_buffer)
 
-#undef __kfifo_initializer
-
 extern void kfifo_init(struct kfifo *fifo, void *buffer,
 			unsigned int size);
 extern __must_check int kfifo_alloc(struct kfifo *fifo, unsigned int size,
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index c02c8db73701..8a49cbf0376d 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -268,6 +268,7 @@ struct _mmc_csd {
 
 #define EXT_CSD_CARD_TYPE_26	(1<<0)	/* Card can run at 26MHz */
 #define EXT_CSD_CARD_TYPE_52	(1<<1)	/* Card can run at 52MHz */
+#define EXT_CSD_CARD_TYPE_MASK	0x3	/* Mask out reserved and DDR bits */
 
 #define EXT_CSD_BUS_WIDTH_1	0	/* Card is in 1 bit mode */
 #define EXT_CSD_BUS_WIDTH_4	1	/* Card is in 4 bit mode */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c79a88be7c33..fa8b47637997 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2059,12 +2059,12 @@ static inline void skb_bond_set_mac_by_master(struct sk_buff *skb,
  * duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and
  * ARP on active-backup slaves with arp_validate enabled.
  */
-static inline int skb_bond_should_drop(struct sk_buff *skb)
+static inline int skb_bond_should_drop(struct sk_buff *skb,
+				       struct net_device *master)
 {
-	struct net_device *dev = skb->dev;
-	struct net_device *master = dev->master;
-
 	if (master) {
+		struct net_device *dev = skb->dev;
+
 		if (master->priv_flags & IFF_MASTER_ARPMON)
 			dev->last_rx = jiffies;
 
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 53923868c9bd..361d6b5630ee 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -76,7 +76,7 @@ extern int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
 extern int nfnetlink_has_listeners(struct net *net, unsigned int group);
 extern int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned group,
 			  int echo, gfp_t flags);
-extern void nfnetlink_set_err(struct net *net, u32 pid, u32 group, int error);
+extern int nfnetlink_set_err(struct net *net, u32 pid, u32 group, int error);
 extern int nfnetlink_unicast(struct sk_buff *skb, struct net *net, u_int32_t pid, int flags);
 
 extern void nfnl_lock(void);
diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
index d654873aa25a..1f7e300094cd 100644
--- a/include/linux/netfilter_ipv6.h
+++ b/include/linux/netfilter_ipv6.h
@@ -59,6 +59,7 @@
 enum nf_ip6_hook_priorities {
 	NF_IP6_PRI_FIRST = INT_MIN,
 	NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
+	NF_IP6_PRI_RAW = -300,
 	NF_IP6_PRI_SELINUX_FIRST = -225,
 	NF_IP6_PRI_CONNTRACK = -200,
 	NF_IP6_PRI_MANGLE = -150,
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index fde27c017326..6eaca5e1e8ca 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -188,7 +188,7 @@ extern int netlink_has_listeners(struct sock *sk, unsigned int group);
 extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);
 extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 pid,
 			     __u32 group, gfp_t allocation);
-extern void netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code);
+extern int netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code);
 extern int netlink_register_notifier(struct notifier_block *nb);
 extern int netlink_unregister_notifier(struct notifier_block *nb);
 
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 2bccb7b9da2d..6e96cc8225d4 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -860,13 +860,6 @@ extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
 
 extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
 
-static inline void
-perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
-{
-	if (atomic_read(&perf_swevent_enabled[event_id]))
-		__perf_sw_event(event_id, nr, nmi, regs, addr);
-}
-
 extern void
 perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
 
@@ -905,6 +898,20 @@ static inline void perf_fetch_caller_regs(struct pt_regs *regs, int skip)
 	return perf_arch_fetch_caller_regs(regs, ip, skip);
 }
 
+static inline void
+perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
+{
+	if (atomic_read(&perf_swevent_enabled[event_id])) {
+		struct pt_regs hot_regs;
+
+		if (!regs) {
+			perf_fetch_caller_regs(&hot_regs, 1);
+			regs = &hot_regs;
+		}
+		__perf_sw_event(event_id, nr, nmi, regs, addr);
+	}
+}
+
 extern void __perf_event_mmap(struct vm_area_struct *vma);
 
 static inline void perf_event_mmap(struct vm_area_struct *vma)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 3024050c82a1..872a98e13d6a 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -123,22 +123,11 @@ static inline int rcu_read_lock_held(void)
 	return lock_is_held(&rcu_lock_map);
 }
 
-/**
- * rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section?
- *
- * If CONFIG_PROVE_LOCKING is selected and enabled, returns nonzero iff in
- * an RCU-bh read-side critical section.  In absence of CONFIG_PROVE_LOCKING,
- * this assumes we are in an RCU-bh read-side critical section unless it can
- * prove otherwise.
- *
- * Check rcu_scheduler_active to prevent false positives during boot.
+/*
+ * rcu_read_lock_bh_held() is defined out of line to avoid #include-file
+ * hell.
  */
-static inline int rcu_read_lock_bh_held(void)
-{
-	if (!debug_lockdep_rcu_enabled())
-		return 1;
-	return lock_is_held(&rcu_bh_lock_map);
-}
+extern int rcu_read_lock_bh_held(void);
 
 /**
  * rcu_read_lock_sched_held - might we be in RCU-sched read-side critical section?
@@ -160,7 +149,7 @@ static inline int rcu_read_lock_sched_held(void)
 		return 1;
 	if (debug_locks)
 		lockdep_opinion = lock_is_held(&rcu_sched_lock_map);
-	return lockdep_opinion || preempt_count() != 0;
+	return lockdep_opinion || preempt_count() != 0 || irqs_disabled();
 }
 #else /* #ifdef CONFIG_PREEMPT */
 static inline int rcu_read_lock_sched_held(void)
@@ -191,7 +180,7 @@ static inline int rcu_read_lock_bh_held(void)
 #ifdef CONFIG_PREEMPT
 static inline int rcu_read_lock_sched_held(void)
 {
-	return !rcu_scheduler_active || preempt_count() != 0;
+	return !rcu_scheduler_active || preempt_count() != 0 || irqs_disabled();
 }
 #else /* #ifdef CONFIG_PREEMPT */
 static inline int rcu_read_lock_sched_held(void)
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 99928dce37ea..7fa02b4af838 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -70,6 +70,11 @@ int reiserfs_security_write(struct reiserfs_transaction_handle *th,
 void reiserfs_security_free(struct reiserfs_security_handle *sec);
 #endif
 
+static inline int reiserfs_xattrs_initialized(struct super_block *sb)
+{
+	return REISERFS_SB(sb)->priv_root != NULL;
+}
+
 #define xattr_size(size) ((size) + sizeof(struct reiserfs_xattr_header))
 static inline loff_t reiserfs_xattr_nblocks(struct inode *inode, loff_t size)
 {
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 03f816a9b659..124f90cd5a38 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -190,9 +190,6 @@ struct skb_shared_info {
 	atomic_t	dataref;
 	unsigned short	nr_frags;
 	unsigned short	gso_size;
-#ifdef CONFIG_HAS_DMA
-	dma_addr_t	dma_head;
-#endif
 	/* Warning: this field is not always filled in (UFO)! */
 	unsigned short	gso_segs;
 	unsigned short  gso_type;
@@ -201,9 +198,6 @@ struct skb_shared_info {
 	struct sk_buff	*frag_list;
 	struct skb_shared_hwtstamps hwtstamps;
 	skb_frag_t	frags[MAX_SKB_FRAGS];
-#ifdef CONFIG_HAS_DMA
-	dma_addr_t	dma_maps[MAX_SKB_FRAGS];
-#endif
 	/* Intermediate layers must ensure that destructor_arg
 	 * remains valid until skb destructor */
 	void *		destructor_arg;
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 7b3aae2052a6..354cc5617f8b 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -255,6 +255,7 @@ struct ucred {
 #define MSG_ERRQUEUE	0x2000	/* Fetch message from error queue */
 #define MSG_NOSIGNAL	0x4000	/* Do not generate SIGPIPE */
 #define MSG_MORE	0x8000	/* Sender will send more */
+#define MSG_WAITFORONE	0x10000	/* recvmmsg(): block until 1+ packets avail */
 
 #define MSG_EOF         MSG_FIN
 
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h
index d7152b451e21..7c91260c44a9 100644
--- a/include/linux/sunrpc/bc_xprt.h
+++ b/include/linux/sunrpc/bc_xprt.h
@@ -36,7 +36,6 @@ struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt);
 void xprt_free_bc_request(struct rpc_rqst *req);
 int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
 void xprt_destroy_backchannel(struct rpc_xprt *, int max_reqs);
-void bc_release_request(struct rpc_task *);
 int bc_send(struct rpc_rqst *req);
 
 /*
@@ -59,6 +58,10 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
 {
 	return 0;
 }
+
+static inline void xprt_free_bc_request(struct rpc_rqst *req)
+{
+}
 #endif /* CONFIG_NFS_V4_1 */
 #endif /* _LINUX_SUNRPC_BC_XPRT_H */
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index f994ae58a002..057929b0a651 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -688,7 +688,7 @@ asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
 asmlinkage long sys_shmdt(char __user *shmaddr);
 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
-asmlinkage long sys_ipc(unsigned int call, int first, int second,
+asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
 		unsigned long third, void __user *ptr, long fifth);
 
 asmlinkage long sys_mq_open(const char __user *name, int oflag, mode_t mode, struct mq_attr __user *attr);
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index f59604ed0ec6..78b4bd3be496 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -49,7 +49,7 @@ struct tracepoint {
 		void **it_func;						\
 									\
 		rcu_read_lock_sched_notrace();				\
-		it_func = rcu_dereference((tp)->funcs);			\
+		it_func = rcu_dereference_sched((tp)->funcs);		\
 		if (it_func) {						\
 			do {						\
 				((void(*)(proto))(*it_func))(args);	\