Merge branch 'perf/urgent' into perf/core

Merge reason: We are going to queue up a dependent patch.

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

15 files changed, 74 insertions, 64 deletions

diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 8a3d4fde2604..6afd7d6a9899 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -70,7 +70,7 @@ extern void ioport_unmap(void __iomem *);
 /* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
-#else
+#elif defined(CONFIG_GENERIC_IOMAP)
 struct pci_dev;
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 { }
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
index e58fcf891370..ce37349860fe 100644
--- a/include/asm-generic/pci_iomap.h
+++ b/include/asm-generic/pci_iomap.h
@@ -25,7 +25,7 @@ extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
 #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
 #endif
 
-#else
+#elif defined(CONFIG_GENERIC_PCI_IOMAP)
 static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
 	return NULL;
diff --git a/include/drm/Kbuild b/include/drm/Kbuild
index a5c0e10fd47d..1e38a19d68f6 100644
--- a/include/drm/Kbuild
+++ b/include/drm/Kbuild
@@ -2,6 +2,7 @@ header-y += drm.h
 header-y += drm_fourcc.h
 header-y += drm_mode.h
 header-y += drm_sarea.h
+header-y += exynos_drm.h
 header-y += i810_drm.h
 header-y += i915_drm.h
 header-y += mga_drm.h
diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h
index 5e120f1c5cd9..1ed3aae893a5 100644
--- a/include/drm/exynos_drm.h
+++ b/include/drm/exynos_drm.h
@@ -97,15 +97,30 @@ struct drm_exynos_plane_set_zpos {
 #define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS	DRM_IOWR(DRM_COMMAND_BASE + \
 		DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
 
+#ifdef __KERNEL__
+
 /**
- * Platform Specific Structure for DRM based FIMD.
+ * A structure for lcd panel information.
  *
  * @timing: default video mode for initializing
+ * @width_mm: physical size of lcd width.
+ * @height_mm: physical size of lcd height.
+ */
+struct exynos_drm_panel_info {
+	struct fb_videomode timing;
+	u32 width_mm;
+	u32 height_mm;
+};
+
+/**
+ * Platform Specific Structure for DRM based FIMD.
+ *
+ * @panel: default panel info for initializing
  * @default_win: default window layer number to be used for UI.
  * @bpp: default bit per pixel.
  */
 struct exynos_drm_fimd_pdata {
-	struct fb_videomode		timing;
+	struct exynos_drm_panel_info panel;
 	u32				vidcon0;
 	u32				vidcon1;
 	unsigned int			default_win;
@@ -139,4 +154,5 @@ struct exynos_drm_hdmi_pdata {
 	unsigned int			bpp;
 };
 
-#endif
+#endif	/* __KERNEL__ */
+#endif	/* _EXYNOS_DRM_H_ */
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h
index 514ed45c462e..d117b29d1062 100644
--- a/include/linux/amba/serial.h
+++ b/include/linux/amba/serial.h
@@ -23,6 +23,8 @@
 #ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
 #define ASM_ARM_HARDWARE_SERIAL_AMBA_H
 
+#include <linux/types.h>
+
 /* -------------------------------------------------------------------------------
  *  From AMBA UART (PL010) Block Specification
  * -------------------------------------------------------------------------------
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index d64a55b23afd..ff5f5256d175 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -47,27 +47,6 @@ struct dentry_stat_t {
 };
 extern struct dentry_stat_t dentry_stat;
 
-/*
- * Compare 2 name strings, return 0 if they match, otherwise non-zero.
- * The strings are both count bytes long, and count is non-zero.
- */
-static inline int dentry_cmp(const unsigned char *cs, size_t scount,
-				const unsigned char *ct, size_t tcount)
-{
-	int ret;
-	if (scount != tcount)
-		return 1;
-	do {
-		ret = (*cs != *ct);
-		if (ret)
-			break;
-		cs++;
-		ct++;
-		tcount--;
-	} while (tcount);
-	return ret;
-}
-
 /* Name hashing routines. Initial hash value */
 /* Hash courtesy of the R5 hash in reiserfs modulo sign bits */
 #define init_name_hash()		0
@@ -89,14 +68,7 @@ static inline unsigned long end_name_hash(unsigned long hash)
 }
 
 /* Compute the hash for a name string. */
-static inline unsigned int
-full_name_hash(const unsigned char *name, unsigned int len)
-{
-	unsigned long hash = init_name_hash();
-	while (len--)
-		hash = partial_name_hash(*name++, hash);
-	return end_name_hash(hash);
-}
+extern unsigned int full_name_hash(const unsigned char *, unsigned int);
 
 /*
  * Try to keep struct dentry aligned on 64 byte cachelines (this will
@@ -309,7 +281,8 @@ extern struct dentry *d_ancestor(struct dentry *, struct dentry *);
 extern struct dentry *d_lookup(struct dentry *, struct qstr *);
 extern struct dentry *d_hash_and_lookup(struct dentry *, struct qstr *);
 extern struct dentry *__d_lookup(struct dentry *, struct qstr *);
-extern struct dentry *__d_lookup_rcu(struct dentry *parent, struct qstr *name,
+extern struct dentry *__d_lookup_rcu(const struct dentry *parent,
+				const struct qstr *name,
 				unsigned *seq, struct inode **inode);
 
 /**
diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index fee66317e071..35f7237ec972 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -15,13 +15,18 @@
 #include <linux/errno.h>
 #include <linux/list.h>
 
+/*
+ * Keep this list arranged in rough order of priority. Anything listed after
+ * KMSG_DUMP_OOPS will not be logged by default unless printk.always_kmsg_dump
+ * is passed to the kernel.
+ */
 enum kmsg_dump_reason {
-	KMSG_DUMP_OOPS,
 	KMSG_DUMP_PANIC,
+	KMSG_DUMP_OOPS,
+	KMSG_DUMP_EMERG,
 	KMSG_DUMP_RESTART,
 	KMSG_DUMP_HALT,
 	KMSG_DUMP_POWEROFF,
-	KMSG_DUMP_EMERG,
 };
 
 /**
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 4d34356fe644..b80de520670b 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -129,7 +129,6 @@ extern void mem_cgroup_print_oom_info(struct mem_cgroup *memcg,
 extern void mem_cgroup_replace_page_cache(struct page *oldpage,
 					struct page *newpage);
 
-extern void mem_cgroup_reset_owner(struct page *page);
 #ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
 extern int do_swap_account;
 #endif
@@ -392,10 +391,6 @@ static inline void mem_cgroup_replace_page_cache(struct page *oldpage,
 				struct page *newpage)
 {
 }
-
-static inline void mem_cgroup_reset_owner(struct page *page)
-{
-}
 #endif /* CONFIG_CGROUP_MEM_CONT */
 
 #if !defined(CONFIG_CGROUP_MEM_RES_CTLR) || !defined(CONFIG_DEBUG_VM)
diff --git a/include/linux/of.h b/include/linux/of.h
index a75a831e2057..92cf6ad35e0e 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -281,6 +281,14 @@ static inline struct property *of_find_property(const struct device_node *np,
 	return NULL;
 }
 
+static inline struct device_node *of_find_compatible_node(
+						struct device_node *from,
+						const char *type,
+						const char *compat)
+{
+	return NULL;
+}
+
 static inline int of_property_read_u32_array(const struct device_node *np,
 					     const char *propname,
 					     u32 *out_values, size_t sz)
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 32cd1f67462e..21638ae14e07 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -348,9 +348,9 @@ do {									\
 #define _this_cpu_generic_to_op(pcp, val, op)				\
 do {									\
 	unsigned long flags;						\
-	local_irq_save(flags);						\
+	raw_local_irq_save(flags);					\
 	*__this_cpu_ptr(&(pcp)) op val;					\
-	local_irq_restore(flags);					\
+	raw_local_irq_restore(flags);					\
 } while (0)
 
 #ifndef this_cpu_write
@@ -449,10 +449,10 @@ do {									\
 ({									\
 	typeof(pcp) ret__;						\
 	unsigned long flags;						\
-	local_irq_save(flags);						\
+	raw_local_irq_save(flags);					\
 	__this_cpu_add(pcp, val);					\
 	ret__ = __this_cpu_read(pcp);					\
-	local_irq_restore(flags);					\
+	raw_local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -479,10 +479,10 @@ do {									\
 #define _this_cpu_generic_xchg(pcp, nval)				\
 ({	typeof(pcp) ret__;						\
 	unsigned long flags;						\
-	local_irq_save(flags);						\
+	raw_local_irq_save(flags);					\
 	ret__ = __this_cpu_read(pcp);					\
 	__this_cpu_write(pcp, nval);					\
-	local_irq_restore(flags);					\
+	raw_local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -507,11 +507,11 @@ do {									\
 ({									\
 	typeof(pcp) ret__;						\
 	unsigned long flags;						\
-	local_irq_save(flags);						\
+	raw_local_irq_save(flags);					\
 	ret__ = __this_cpu_read(pcp);					\
 	if (ret__ == (oval))						\
 		__this_cpu_write(pcp, nval);				\
-	local_irq_restore(flags);					\
+	raw_local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -544,10 +544,10 @@ do {									\
 ({									\
 	int ret__;							\
 	unsigned long flags;						\
-	local_irq_save(flags);						\
+	raw_local_irq_save(flags);					\
 	ret__ = __this_cpu_generic_cmpxchg_double(pcp1, pcp2,		\
 			oval1, oval2, nval1, nval2);			\
-	local_irq_restore(flags);					\
+	raw_local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -718,12 +718,13 @@ do {									\
 # ifndef __this_cpu_add_return_8
 #  define __this_cpu_add_return_8(pcp, val)	__this_cpu_generic_add_return(pcp, val)
 # endif
-# define __this_cpu_add_return(pcp, val)	__pcpu_size_call_return2(this_cpu_add_return_, pcp, val)
+# define __this_cpu_add_return(pcp, val)	\
+	__pcpu_size_call_return2(__this_cpu_add_return_, pcp, val)
 #endif
 
-#define __this_cpu_sub_return(pcp, val)	this_cpu_add_return(pcp, -(val))
-#define __this_cpu_inc_return(pcp)	this_cpu_add_return(pcp, 1)
-#define __this_cpu_dec_return(pcp)	this_cpu_add_return(pcp, -1)
+#define __this_cpu_sub_return(pcp, val)	__this_cpu_add_return(pcp, -(val))
+#define __this_cpu_inc_return(pcp)	__this_cpu_add_return(pcp, 1)
+#define __this_cpu_dec_return(pcp)	__this_cpu_add_return(pcp, -1)
 
 #define __this_cpu_generic_xchg(pcp, nval)				\
 ({	typeof(pcp) ret__;						\
diff --git a/include/linux/regset.h b/include/linux/regset.h
index 8abee6556223..686f37327a49 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -335,8 +335,11 @@ static inline int copy_regset_to_user(struct task_struct *target,
 {
 	const struct user_regset *regset = &view->regsets[setno];
 
+	if (!regset->get)
+		return -EOPNOTSUPP;
+
 	if (!access_ok(VERIFY_WRITE, data, size))
-		return -EIO;
+		return -EFAULT;
 
 	return regset->get(target, regset, offset, size, NULL, data);
 }
@@ -358,8 +361,11 @@ static inline int copy_regset_from_user(struct task_struct *target,
 {
 	const struct user_regset *regset = &view->regsets[setno];
 
+	if (!regset->set)
+		return -EOPNOTSUPP;
+
 	if (!access_ok(VERIFY_READ, data, size))
-		return -EIO;
+		return -EFAULT;
 
 	return regset->set(target, regset, offset, size, NULL, data);
 }
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7d379a6bfd88..0657368bd78f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1777,7 +1777,6 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
 /*
  * Per process flags
  */
-#define PF_STARTING	0x00000002	/* being created */
 #define PF_EXITING	0x00000004	/* getting shut down */
 #define PF_EXITPIDONE	0x00000008	/* pi exit done on shut down */
 #define PF_VCPU		0x00000010	/* I'm a virtual CPU */
@@ -2371,7 +2370,7 @@ static inline int thread_group_empty(struct task_struct *p)
  * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
  * subscriptions and synchronises with wait4().  Also used in procfs.  Also
  * pins the final release of task.io_context.  Also protects ->cpuset and
- * ->cgroup.subsys[].
+ * ->cgroup.subsys[]. And ->vfork_done.
  *
  * Nests both inside and outside of read_lock(&tasklist_lock).
  * It must not be nested with write_lock_irq(&tasklist_lock),
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 46a85c9e1f25..3c7ffdb40dc6 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -412,7 +412,8 @@ struct tcp_sock {
 
 	struct tcp_sack_block recv_sack_cache[4];
 
-	struct sk_buff *highest_sack;   /* highest skb with SACK received
+	struct sk_buff *highest_sack;   /* skb just after the highest
+					 * skb with SACKed bit set
 					 * (validity guaranteed only if
 					 * sacked_out > 0)
 					 */
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 06b795dd5906..b94765e38e80 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -35,12 +35,12 @@ struct inet_peer {
 
 	u32			metrics[RTAX_MAX];
 	u32			rate_tokens;	/* rate limiting for ICMP */
-	int			redirect_genid;
 	unsigned long		rate_last;
 	unsigned long		pmtu_expires;
 	u32			pmtu_orig;
 	u32			pmtu_learned;
 	struct inetpeer_addr_base redirect_learned;
+	struct list_head	gc_list;
 	/*
 	 * Once inet_peer is queued for deletion (refcnt == -1), following fields
 	 * are not available: rid, ip_id_count, tcp_ts, tcp_ts_stamp
@@ -96,6 +96,8 @@ static inline struct inet_peer *inet_getpeer_v6(const struct in6_addr *v6daddr,
 extern void inet_putpeer(struct inet_peer *p);
 extern bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout);
 
+extern void inetpeer_invalidate_tree(int family);
+
 /*
  * temporary check to make sure we dont access rid, ip_id_count, tcp_ts,
  * tcp_ts_stamp if no refcount is taken on inet_peer
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 42c29bfbcee3..2d80c291fffb 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1364,8 +1364,9 @@ static inline void tcp_push_pending_frames(struct sock *sk)
 	}
 }
 
-/* Start sequence of the highest skb with SACKed bit, valid only if
- * sacked > 0 or when the caller has ensured validity by itself.
+/* Start sequence of the skb just after the highest skb with SACKed
+ * bit, valid only if sacked_out > 0 or when the caller has ensured
+ * validity by itself.
  */
 static inline u32 tcp_highest_sack_seq(struct tcp_sock *tp)
 {