Merge tag 'v3.16-rc1' into i2c/for-next

Merge a stable base (Linux 3.16-rc1)

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

33 files changed, 1368 insertions, 734 deletions

diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index d2b32ac27a39..35536d9c0964 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -223,3 +223,10 @@ endif
 config MUTEX_SPIN_ON_OWNER
 	def_bool y
 	depends on SMP && !DEBUG_MUTEXES
+
+config ARCH_USE_QUEUE_RWLOCK
+	bool
+
+config QUEUE_RWLOCK
+	def_bool y if ARCH_USE_QUEUE_RWLOCK
+	depends on SMP
diff --git a/kernel/audit.c b/kernel/audit.c
index f30106459a32..3ef2e0e797e8 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -424,6 +424,38 @@ static void kauditd_send_skb(struct sk_buff *skb)
 }
 
 /*
+ * kauditd_send_multicast_skb - send the skb to multicast userspace listeners
+ *
+ * This function doesn't consume an skb as might be expected since it has to
+ * copy it anyways.
+ */
+static void kauditd_send_multicast_skb(struct sk_buff *skb)
+{
+	struct sk_buff		*copy;
+	struct audit_net	*aunet = net_generic(&init_net, audit_net_id);
+	struct sock		*sock = aunet->nlsk;
+
+	if (!netlink_has_listeners(sock, AUDIT_NLGRP_READLOG))
+		return;
+
+	/*
+	 * The seemingly wasteful skb_copy() rather than bumping the refcount
+	 * using skb_get() is necessary because non-standard mods are made to
+	 * the skb by the original kaudit unicast socket send routine.  The
+	 * existing auditd daemon assumes this breakage.  Fixing this would
+	 * require co-ordinating a change in the established protocol between
+	 * the kaudit kernel subsystem and the auditd userspace code.  There is
+	 * no reason for new multicast clients to continue with this
+	 * non-compliance.
+	 */
+	copy = skb_copy(skb, GFP_KERNEL);
+	if (!copy)
+		return;
+
+	nlmsg_multicast(sock, copy, 0, AUDIT_NLGRP_READLOG, GFP_KERNEL);
+}
+
+/*
  * flush_hold_queue - empty the hold queue if auditd appears
  *
  * If auditd just started, drain the queue of messages already
@@ -1076,10 +1108,22 @@ static void audit_receive(struct sk_buff  *skb)
 	mutex_unlock(&audit_cmd_mutex);
 }
 
+/* Run custom bind function on netlink socket group connect or bind requests. */
+static int audit_bind(int group)
+{
+	if (!capable(CAP_AUDIT_READ))
+		return -EPERM;
+
+	return 0;
+}
+
 static int __net_init audit_net_init(struct net *net)
 {
 	struct netlink_kernel_cfg cfg = {
 		.input	= audit_receive,
+		.bind	= audit_bind,
+		.flags	= NL_CFG_F_NONROOT_RECV,
+		.groups	= AUDIT_NLGRP_MAX,
 	};
 
 	struct audit_net *aunet = net_generic(net, audit_net_id);
@@ -1901,10 +1945,10 @@ out:
  * audit_log_end - end one audit record
  * @ab: the audit_buffer
  *
- * The netlink_* functions cannot be called inside an irq context, so
- * the audit buffer is placed on a queue and a tasklet is scheduled to
- * remove them from the queue outside the irq context.  May be called in
- * any context.
+ * netlink_unicast() cannot be called inside an irq context because it blocks
+ * (last arg, flags, is not set to MSG_DONTWAIT), so the audit buffer is placed
+ * on a queue and a tasklet is scheduled to remove them from the queue outside
+ * the irq context.  May be called in any context.
  */
 void audit_log_end(struct audit_buffer *ab)
 {
@@ -1914,6 +1958,18 @@ void audit_log_end(struct audit_buffer *ab)
 		audit_log_lost("rate limit exceeded");
 	} else {
 		struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
+
+		kauditd_send_multicast_skb(ab->skb);
+
+		/*
+		 * The original kaudit unicast socket sends up messages with
+		 * nlmsg_len set to the payload length rather than the entire
+		 * message length.  This breaks the standard set by netlink.
+		 * The existing auditd daemon assumes this breakage.  Fixing
+		 * this would require co-ordinating a change in the established
+		 * protocol between the kaudit kernel subsystem and the auditd
+		 * userspace code.
+		 */
 		nlh->nlmsg_len = ab->skb->len - NLMSG_HDRLEN;
 
 		if (audit_pid) {
diff --git a/kernel/cpu.c b/kernel/cpu.c
index acf791c55b71..a343bde710b1 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -20,6 +20,7 @@
 #include <linux/gfp.h>
 #include <linux/suspend.h>
 #include <linux/lockdep.h>
+#include <trace/events/power.h>
 
 #include "smpboot.h"
 
@@ -520,7 +521,9 @@ int disable_nonboot_cpus(void)
 	for_each_online_cpu(cpu) {
 		if (cpu == first_cpu)
 			continue;
+		trace_suspend_resume(TPS("CPU_OFF"), cpu, true);
 		error = _cpu_down(cpu, 1);
+		trace_suspend_resume(TPS("CPU_OFF"), cpu, false);
 		if (!error)
 			cpumask_set_cpu(cpu, frozen_cpus);
 		else {
@@ -563,7 +566,9 @@ void __ref enable_nonboot_cpus(void)
 	arch_enable_nonboot_cpus_begin();
 
 	for_each_cpu(cpu, frozen_cpus) {
+		trace_suspend_resume(TPS("CPU_ON"), cpu, true);
 		error = _cpu_up(cpu, 1);
+		trace_suspend_resume(TPS("CPU_ON"), cpu, false);
 		if (!error) {
 			pr_info("CPU%d is up\n", cpu);
 			continue;
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 24d35cc38e42..5fa58e4cffac 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2974,6 +2974,22 @@ out:
 	local_irq_restore(flags);
 }
 
+void perf_event_exec(void)
+{
+	struct perf_event_context *ctx;
+	int ctxn;
+
+	rcu_read_lock();
+	for_each_task_context_nr(ctxn) {
+		ctx = current->perf_event_ctxp[ctxn];
+		if (!ctx)
+			continue;
+
+		perf_event_enable_on_exec(ctx);
+	}
+	rcu_read_unlock();
+}
+
 /*
  * Cross CPU call to read the hardware event
  */
@@ -5075,21 +5091,9 @@ static void perf_event_comm_event(struct perf_comm_event *comm_event)
 		       NULL);
 }
 
-void perf_event_comm(struct task_struct *task)
+void perf_event_comm(struct task_struct *task, bool exec)
 {
 	struct perf_comm_event comm_event;
-	struct perf_event_context *ctx;
-	int ctxn;
-
-	rcu_read_lock();
-	for_each_task_context_nr(ctxn) {
-		ctx = task->perf_event_ctxp[ctxn];
-		if (!ctx)
-			continue;
-
-		perf_event_enable_on_exec(ctx);
-	}
-	rcu_read_unlock();
 
 	if (!atomic_read(&nr_comm_events))
 		return;
@@ -5101,7 +5105,7 @@ void perf_event_comm(struct task_struct *task)
 		.event_id  = {
 			.header = {
 				.type = PERF_RECORD_COMM,
-				.misc = 0,
+				.misc = exec ? PERF_RECORD_MISC_COMM_EXEC : 0,
 				/* .size */
 			},
 			/* .pid */
@@ -7122,6 +7126,13 @@ SYSCALL_DEFINE5(perf_event_open,
 		}
 	}
 
+	if (is_sampling_event(event)) {
+		if (event->pmu->capabilities & PERF_PMU_CAP_NO_INTERRUPT) {
+			err = -ENOTSUPP;
+			goto err_alloc;
+		}
+	}
+
 	account_event(event);
 
 	/*
@@ -7433,7 +7444,7 @@ __perf_event_exit_task(struct perf_event *child_event,
 
 static void perf_event_exit_task_context(struct task_struct *child, int ctxn)
 {
-	struct perf_event *child_event;
+	struct perf_event *child_event, *next;
 	struct perf_event_context *child_ctx;
 	unsigned long flags;
 
@@ -7487,7 +7498,7 @@ static void perf_event_exit_task_context(struct task_struct *child, int ctxn)
 	 */
 	mutex_lock(&child_ctx->mutex);
 
-	list_for_each_entry_rcu(child_event, &child_ctx->event_list, event_entry)
+	list_for_each_entry_safe(child_event, next, &child_ctx->event_list, event_entry)
 		__perf_event_exit_task(child_event, child_ctx, child);
 
 	mutex_unlock(&child_ctx->mutex);
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index adcd76a96839..c445e392e93f 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -36,6 +36,7 @@
 #include "../../mm/internal.h"	/* munlock_vma_page */
 #include <linux/percpu-rwsem.h>
 #include <linux/task_work.h>
+#include <linux/shmem_fs.h>
 
 #include <linux/uprobes.h>
 
@@ -127,7 +128,7 @@ struct xol_area {
  */
 static bool valid_vma(struct vm_area_struct *vma, bool is_register)
 {
-	vm_flags_t flags = VM_HUGETLB | VM_MAYEXEC | VM_SHARED;
+	vm_flags_t flags = VM_HUGETLB | VM_MAYEXEC | VM_MAYSHARE;
 
 	if (is_register)
 		flags |= VM_WRITE;
@@ -279,18 +280,13 @@ static int verify_opcode(struct page *page, unsigned long vaddr, uprobe_opcode_t
  * supported by that architecture then we need to modify is_trap_at_addr and
  * uprobe_write_opcode accordingly. This would never be a problem for archs
  * that have fixed length instructions.
- */
-
-/*
+ *
  * uprobe_write_opcode - write the opcode at a given virtual address.
  * @mm: the probed process address space.
  * @vaddr: the virtual address to store the opcode.
  * @opcode: opcode to be written at @vaddr.
  *
- * Called with mm->mmap_sem held (for read and with a reference to
- * mm).
- *
- * For mm @mm, write the opcode at @vaddr.
+ * Called with mm->mmap_sem held for write.
  * Return 0 (success) or a negative errno.
  */
 int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr,
@@ -310,21 +306,25 @@ retry:
 	if (ret <= 0)
 		goto put_old;
 
+	ret = anon_vma_prepare(vma);
+	if (ret)
+		goto put_old;
+
 	ret = -ENOMEM;
 	new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vaddr);
 	if (!new_page)
 		goto put_old;
 
-	__SetPageUptodate(new_page);
+	if (mem_cgroup_charge_anon(new_page, mm, GFP_KERNEL))
+		goto put_new;
 
+	__SetPageUptodate(new_page);
 	copy_highpage(new_page, old_page);
 	copy_to_page(new_page, vaddr, &opcode, UPROBE_SWBP_INSN_SIZE);
 
-	ret = anon_vma_prepare(vma);
-	if (ret)
-		goto put_new;
-
 	ret = __replace_page(vma, vaddr, old_page, new_page);
+	if (ret)
+		mem_cgroup_uncharge_page(new_page);
 
 put_new:
 	page_cache_release(new_page);
@@ -537,14 +537,15 @@ static int __copy_insn(struct address_space *mapping, struct file *filp,
 			void *insn, int nbytes, loff_t offset)
 {
 	struct page *page;
-
-	if (!mapping->a_ops->readpage)
-		return -EIO;
 	/*
-	 * Ensure that the page that has the original instruction is
-	 * populated and in page-cache.
+	 * Ensure that the page that has the original instruction is populated
+	 * and in page-cache. If ->readpage == NULL it must be shmem_mapping(),
+	 * see uprobe_register().
 	 */
-	page = read_mapping_page(mapping, offset >> PAGE_CACHE_SHIFT, filp);
+	if (mapping->a_ops->readpage)
+		page = read_mapping_page(mapping, offset >> PAGE_CACHE_SHIFT, filp);
+	else
+		page = shmem_read_mapping_page(mapping, offset >> PAGE_CACHE_SHIFT);
 	if (IS_ERR(page))
 		return PTR_ERR(page);
 
@@ -880,6 +881,9 @@ int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *
 	if (!uc->handler && !uc->ret_handler)
 		return -EINVAL;
 
+	/* copy_insn() uses read_mapping_page() or shmem_read_mapping_page() */
+	if (!inode->i_mapping->a_ops->readpage && !shmem_mapping(inode->i_mapping))
+		return -EIO;
 	/* Racy, just to catch the obvious mistakes */
 	if (offset > i_size_read(inode))
 		return -EINVAL;
@@ -1361,6 +1365,16 @@ unsigned long __weak uprobe_get_swbp_addr(struct pt_regs *regs)
 	return instruction_pointer(regs) - UPROBE_SWBP_INSN_SIZE;
 }
 
+unsigned long uprobe_get_trap_addr(struct pt_regs *regs)
+{
+	struct uprobe_task *utask = current->utask;
+
+	if (unlikely(utask && utask->active_uprobe))
+		return utask->vaddr;
+
+	return instruction_pointer(regs);
+}
+
 /*
  * Called with no locks held.
  * Called in context of a exiting or a exec-ing thread.
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index ceeadfcabb76..3214289df5a7 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -86,21 +86,8 @@ static raw_spinlock_t *kretprobe_table_lock_ptr(unsigned long hash)
 	return &(kretprobe_table_locks[hash].lock);
 }
 
-/*
- * Normally, functions that we'd want to prohibit kprobes in, are marked
- * __kprobes. But, there are cases where such functions already belong to
- * a different section (__sched for preempt_schedule)
- *
- * For such cases, we now have a blacklist
- */
-static struct kprobe_blackpoint kprobe_blacklist[] = {
-	{"preempt_schedule",},
-	{"native_get_debugreg",},
-	{"irq_entries_start",},
-	{"common_interrupt",},
-	{"mcount",},	/* mcount can be called from everywhere */
-	{NULL}    /* Terminator */
-};
+/* Blacklist -- list of struct kprobe_blacklist_entry */
+static LIST_HEAD(kprobe_blacklist);
 
 #ifdef __ARCH_WANT_KPROBES_INSN_SLOT
 /*
@@ -151,13 +138,13 @@ struct kprobe_insn_cache kprobe_insn_slots = {
 	.insn_size = MAX_INSN_SIZE,
 	.nr_garbage = 0,
 };
-static int __kprobes collect_garbage_slots(struct kprobe_insn_cache *c);
+static int collect_garbage_slots(struct kprobe_insn_cache *c);
 
 /**
  * __get_insn_slot() - Find a slot on an executable page for an instruction.
  * We allocate an executable page if there's no room on existing ones.
  */
-kprobe_opcode_t __kprobes *__get_insn_slot(struct kprobe_insn_cache *c)
+kprobe_opcode_t *__get_insn_slot(struct kprobe_insn_cache *c)
 {
 	struct kprobe_insn_page *kip;
 	kprobe_opcode_t *slot = NULL;
@@ -214,7 +201,7 @@ out:
 }
 
 /* Return 1 if all garbages are collected, otherwise 0. */
-static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx)
+static int collect_one_slot(struct kprobe_insn_page *kip, int idx)
 {
 	kip->slot_used[idx] = SLOT_CLEAN;
 	kip->nused--;
@@ -235,7 +222,7 @@ static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx)
 	return 0;
 }
 
-static int __kprobes collect_garbage_slots(struct kprobe_insn_cache *c)
+static int collect_garbage_slots(struct kprobe_insn_cache *c)
 {
 	struct kprobe_insn_page *kip, *next;
 
@@ -257,8 +244,8 @@ static int __kprobes collect_garbage_slots(struct kprobe_insn_cache *c)
 	return 0;
 }
 
-void __kprobes __free_insn_slot(struct kprobe_insn_cache *c,
-				kprobe_opcode_t *slot, int dirty)
+void __free_insn_slot(struct kprobe_insn_cache *c,
+		      kprobe_opcode_t *slot, int dirty)
 {
 	struct kprobe_insn_page *kip;
 
@@ -314,7 +301,7 @@ static inline void reset_kprobe_instance(void)
  * 				OR
  * 	- with preemption disabled - from arch/xxx/kernel/kprobes.c
  */
-struct kprobe __kprobes *get_kprobe(void *addr)
+struct kprobe *get_kprobe(void *addr)
 {
 	struct hlist_head *head;
 	struct kprobe *p;
@@ -327,8 +314,9 @@ struct kprobe __kprobes *get_kprobe(void *addr)
 
 	return NULL;
 }
+NOKPROBE_SYMBOL(get_kprobe);
 
-static int __kprobes aggr_pre_handler(struct kprobe *p, struct pt_regs *regs);
+static int aggr_pre_handler(struct kprobe *p, struct pt_regs *regs);
 
 /* Return true if the kprobe is an aggregator */
 static inline int kprobe_aggrprobe(struct kprobe *p)
@@ -360,7 +348,7 @@ static bool kprobes_allow_optimization;
  * Call all pre_handler on the list, but ignores its return value.
  * This must be called from arch-dep optimized caller.
  */
-void __kprobes opt_pre_handler(struct kprobe *p, struct pt_regs *regs)
+void opt_pre_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe *kp;
 
@@ -372,9 +360,10 @@ void __kprobes opt_pre_handler(struct kprobe *p, struct pt_regs *regs)
 		reset_kprobe_instance();
 	}
 }
+NOKPROBE_SYMBOL(opt_pre_handler);
 
 /* Free optimized instructions and optimized_kprobe */
-static __kprobes void free_aggr_kprobe(struct kprobe *p)
+static void free_aggr_kprobe(struct kprobe *p)
 {
 	struct optimized_kprobe *op;
 
@@ -412,7 +401,7 @@ static inline int kprobe_disarmed(struct kprobe *p)
 }
 
 /* Return true(!0) if the probe is queued on (un)optimizing lists */
-static int __kprobes kprobe_queued(struct kprobe *p)
+static int kprobe_queued(struct kprobe *p)
 {
 	struct optimized_kprobe *op;
 
@@ -428,7 +417,7 @@ static int __kprobes kprobe_queued(struct kprobe *p)
  * Return an optimized kprobe whose optimizing code replaces
  * instructions including addr (exclude breakpoint).
  */
-static struct kprobe *__kprobes get_optimized_kprobe(unsigned long addr)
+static struct kprobe *get_optimized_kprobe(unsigned long addr)
 {
 	int i;
 	struct kprobe *p = NULL;
@@ -460,7 +449,7 @@ static DECLARE_DELAYED_WORK(optimizing_work, kprobe_optimizer);
  * Optimize (replace a breakpoint with a jump) kprobes listed on
  * optimizing_list.
  */
-static __kprobes void do_optimize_kprobes(void)
+static void do_optimize_kprobes(void)
 {
 	/* Optimization never be done when disarmed */
 	if (kprobes_all_disarmed || !kprobes_allow_optimization ||
@@ -488,7 +477,7 @@ static __kprobes void do_optimize_kprobes(void)
  * Unoptimize (replace a jump with a breakpoint and remove the breakpoint
  * if need) kprobes listed on unoptimizing_list.
  */
-static __kprobes void do_unoptimize_kprobes(void)
+static void do_unoptimize_kprobes(void)
 {
 	struct optimized_kprobe *op, *tmp;
 
@@ -520,7 +509,7 @@ static __kprobes void do_unoptimize_kprobes(void)
 }
 
 /* Reclaim all kprobes on the free_list */
-static __kprobes void do_free_cleaned_kprobes(void)
+static void do_free_cleaned_kprobes(void)
 {
 	struct optimized_kprobe *op, *tmp;
 
@@ -532,13 +521,13 @@ static __kprobes void do_free_cleaned_kprobes(void)
 }
 
 /* Start optimizer after OPTIMIZE_DELAY passed */
-static __kprobes void kick_kprobe_optimizer(void)
+static void kick_kprobe_optimizer(void)
 {
 	schedule_delayed_work(&optimizing_work, OPTIMIZE_DELAY);
 }
 
 /* Kprobe jump optimizer */
-static __kprobes void kprobe_optimizer(struct work_struct *work)
+static void kprobe_optimizer(struct work_struct *work)
 {
 	mutex_lock(&kprobe_mutex);
 	/* Lock modules while optimizing kprobes */
@@ -574,7 +563,7 @@ static __kprobes void kprobe_optimizer(struct work_struct *work)
 }
 
 /* Wait for completing optimization and unoptimization */
-static __kprobes void wait_for_kprobe_optimizer(void)
+static void wait_for_kprobe_optimizer(void)
 {
 	mutex_lock(&kprobe_mutex);
 
@@ -593,7 +582,7 @@ static __kprobes void wait_for_kprobe_optimizer(void)
 }
 
 /* Optimize kprobe if p is ready to be optimized */
-static __kprobes void optimize_kprobe(struct kprobe *p)
+static void optimize_kprobe(struct kprobe *p)
 {
 	struct optimized_kprobe *op;
 
@@ -627,7 +616,7 @@ static __kprobes void optimize_kprobe(struct kprobe *p)
 }
 
 /* Short cut to direct unoptimizing */
-static __kprobes void force_unoptimize_kprobe(struct optimized_kprobe *op)
+static void force_unoptimize_kprobe(struct optimized_kprobe *op)
 {
 	get_online_cpus();
 	arch_unoptimize_kprobe(op);
@@ -637,7 +626,7 @@ static __kprobes void force_unoptimize_kprobe(struct optimized_kprobe *op)
 }
 
 /* Unoptimize a kprobe if p is optimized */
-static __kprobes void unoptimize_kprobe(struct kprobe *p, bool force)
+static void unoptimize_kprobe(struct kprobe *p, bool force)
 {
 	struct optimized_kprobe *op;
 
@@ -697,7 +686,7 @@ static void reuse_unused_kprobe(struct kprobe *ap)
 }
 
 /* Remove optimized instructions */
-static void __kprobes kill_optimized_kprobe(struct kprobe *p)
+static void kill_optimized_kprobe(struct kprobe *p)
 {
 	struct optimized_kprobe *op;
 
@@ -723,7 +712,7 @@ static void __kprobes kill_optimized_kprobe(struct kprobe *p)
 }
 
 /* Try to prepare optimized instructions */
-static __kprobes void prepare_optimized_kprobe(struct kprobe *p)
+static void prepare_optimized_kprobe(struct kprobe *p)
 {
 	struct optimized_kprobe *op;
 
@@ -732,7 +721,7 @@ static __kprobes void prepare_optimized_kprobe(struct kprobe *p)
 }
 
 /* Allocate new optimized_kprobe and try to prepare optimized instructions */
-static __kprobes struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
+static struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
 {
 	struct optimized_kprobe *op;
 
@@ -747,13 +736,13 @@ static __kprobes struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
 	return &op->kp;
 }
 
-static void __kprobes init_aggr_kprobe(struct kprobe *ap, struct kprobe *p);
+static void init_aggr_kprobe(struct kprobe *ap, struct kprobe *p);
 
 /*
  * Prepare an optimized_kprobe and optimize it
  * NOTE: p must be a normal registered kprobe
  */
-static __kprobes void try_to_optimize_kprobe(struct kprobe *p)
+static void try_to_optimize_kprobe(struct kprobe *p)
 {
 	struct kprobe *ap;
 	struct optimized_kprobe *op;
@@ -787,7 +776,7 @@ out:
 }
 
 #ifdef CONFIG_SYSCTL
-static void __kprobes optimize_all_kprobes(void)
+static void optimize_all_kprobes(void)
 {
 	struct hlist_head *head;
 	struct kprobe *p;
@@ -810,7 +799,7 @@ out:
 	mutex_unlock(&kprobe_mutex);
 }
 
-static void __kprobes unoptimize_all_kprobes(void)
+static void unoptimize_all_kprobes(void)
 {
 	struct hlist_head *head;
 	struct kprobe *p;
@@ -861,7 +850,7 @@ int proc_kprobes_optimization_handler(struct ctl_table *table, int write,
 #endif /* CONFIG_SYSCTL */
 
 /* Put a breakpoint for a probe. Must be called with text_mutex locked */
-static void __kprobes __arm_kprobe(struct kprobe *p)
+static void __arm_kprobe(struct kprobe *p)
 {
 	struct kprobe *_p;
 
@@ -876,7 +865,7 @@ static void __kprobes __arm_kprobe(struct kprobe *p)
 }
 
 /* Remove the breakpoint of a probe. Must be called with text_mutex locked */
-static void __kprobes __disarm_kprobe(struct kprobe *p, bool reopt)
+static void __disarm_kprobe(struct kprobe *p, bool reopt)
 {
 	struct kprobe *_p;
 
@@ -911,13 +900,13 @@ static void reuse_unused_kprobe(struct kprobe *ap)
 	BUG_ON(kprobe_unused(ap));
 }
 
-static __kprobes void free_aggr_kprobe(struct kprobe *p)
+static void free_aggr_kprobe(struct kprobe *p)
 {
 	arch_remove_kprobe(p);
 	kfree(p);
 }
 
-static __kprobes struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
+static struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
 {
 	return kzalloc(sizeof(struct kprobe), GFP_KERNEL);
 }
@@ -931,7 +920,7 @@ static struct ftrace_ops kprobe_ftrace_ops __read_mostly = {
 static int kprobe_ftrace_enabled;
 
 /* Must ensure p->addr is really on ftrace */
-static int __kprobes prepare_kprobe(struct kprobe *p)
+static int prepare_kprobe(struct kprobe *p)
 {
 	if (!kprobe_ftrace(p))
 		return arch_prepare_kprobe(p);
@@ -940,7 +929,7 @@ static int __kprobes prepare_kprobe(struct kprobe *p)
 }
 
 /* Caller must lock kprobe_mutex */
-static void __kprobes arm_kprobe_ftrace(struct kprobe *p)
+static void arm_kprobe_ftrace(struct kprobe *p)
 {
 	int ret;
 
@@ -955,7 +944,7 @@ static void __kprobes arm_kprobe_ftrace(struct kprobe *p)
 }
 
 /* Caller must lock kprobe_mutex */
-static void __kprobes disarm_kprobe_ftrace(struct kprobe *p)
+static void disarm_kprobe_ftrace(struct kprobe *p)
 {
 	int ret;
 
@@ -975,7 +964,7 @@ static void __kprobes disarm_kprobe_ftrace(struct kprobe *p)
 #endif
 
 /* Arm a kprobe with text_mutex */
-static void __kprobes arm_kprobe(struct kprobe *kp)
+static void arm_kprobe(struct kprobe *kp)
 {
 	if (unlikely(kprobe_ftrace(kp))) {
 		arm_kprobe_ftrace(kp);
@@ -992,7 +981,7 @@ static void __kprobes arm_kprobe(struct kprobe *kp)
 }
 
 /* Disarm a kprobe with text_mutex */
-static void __kprobes disarm_kprobe(struct kprobe *kp, bool reopt)
+static void disarm_kprobe(struct kprobe *kp, bool reopt)
 {
 	if (unlikely(kprobe_ftrace(kp))) {
 		disarm_kprobe_ftrace(kp);
@@ -1008,7 +997,7 @@ static void __kprobes disarm_kprobe(struct kprobe *kp, bool reopt)
  * Aggregate handlers for multiple kprobes support - these handlers
  * take care of invoking the individual kprobe handlers on p->list
  */
-static int __kprobes aggr_pre_handler(struct kprobe *p, struct pt_regs *regs)
+static int aggr_pre_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe *kp;
 
@@ -1022,9 +1011,10 @@ static int __kprobes aggr_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	}
 	return 0;
 }
+NOKPROBE_SYMBOL(aggr_pre_handler);
 
-static void __kprobes aggr_post_handler(struct kprobe *p, struct pt_regs *regs,
-					unsigned long flags)
+static void aggr_post_handler(struct kprobe *p, struct pt_regs *regs,
+			      unsigned long flags)
 {
 	struct kprobe *kp;
 
@@ -1036,9 +1026,10 @@ static void __kprobes aggr_post_handler(struct kprobe *p, struct pt_regs *regs,
 		}
 	}
 }
+NOKPROBE_SYMBOL(aggr_post_handler);
 
-static int __kprobes aggr_fault_handler(struct kprobe *p, struct pt_regs *regs,
-					int trapnr)
+static int aggr_fault_handler(struct kprobe *p, struct pt_regs *regs,
+			      int trapnr)
 {
 	struct kprobe *cur = __this_cpu_read(kprobe_instance);
 
@@ -1052,8 +1043,9 @@ static int __kprobes aggr_fault_handler(struct kprobe *p, struct pt_regs *regs,
 	}
 	return 0;
 }
+NOKPROBE_SYMBOL(aggr_fault_handler);
 
-static int __kprobes aggr_break_handler(struct kprobe *p, struct pt_regs *regs)
+static int aggr_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	struct kprobe *cur = __this_cpu_read(kprobe_instance);
 	int ret = 0;
@@ -1065,9 +1057,10 @@ static int __kprobes aggr_break_handler(struct kprobe *p, struct pt_regs *regs)
 	reset_kprobe_instance();
 	return ret;
 }
+NOKPROBE_SYMBOL(aggr_break_handler);
 
 /* Walks the list and increments nmissed count for multiprobe case */
-void __kprobes kprobes_inc_nmissed_count(struct kprobe *p)
+void kprobes_inc_nmissed_count(struct kprobe *p)
 {
 	struct kprobe *kp;
 	if (!kprobe_aggrprobe(p)) {
@@ -1078,9 +1071,10 @@ void __kprobes kprobes_inc_nmissed_count(struct kprobe *p)
 	}
 	return;
 }
+NOKPROBE_SYMBOL(kprobes_inc_nmissed_count);
 
-void __kprobes recycle_rp_inst(struct kretprobe_instance *ri,
-				struct hlist_head *head)
+void recycle_rp_inst(struct kretprobe_instance *ri,
+		     struct hlist_head *head)
 {
 	struct kretprobe *rp = ri->rp;
 
@@ -1095,8 +1089,9 @@ void __kprobes recycle_rp_inst(struct kretprobe_instance *ri,
 		/* Unregistering */
 		hlist_add_head(&ri->hlist, head);
 }
+NOKPROBE_SYMBOL(recycle_rp_inst);
 
-void __kprobes kretprobe_hash_lock(struct task_struct *tsk,
+void kretprobe_hash_lock(struct task_struct *tsk,
 			 struct hlist_head **head, unsigned long *flags)
 __acquires(hlist_lock)
 {
@@ -1107,17 +1102,19 @@ __acquires(hlist_lock)
 	hlist_lock = kretprobe_table_lock_ptr(hash);
 	raw_spin_lock_irqsave(hlist_lock, *flags);
 }
+NOKPROB