7 files changed, 41 insertions, 34 deletions

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index fe2f71f92a..ba42b0a769 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -641,7 +641,7 @@ static void guarantee_online_mems(const struct cpuset *cs, nodemask_t *pmask)
  * task has been modifying its cpuset.
  */
 
-void cpuset_update_task_memory_state()
+void cpuset_update_task_memory_state(void)
 {
         int my_cpusets_mem_gen;
         struct task_struct *tsk = current;
diff --git a/kernel/intermodule.c b/kernel/intermodule.c
index 0cbe633420..55b1e5b85d 100644
--- a/kernel/intermodule.c
+++ b/kernel/intermodule.c
@@ -179,3 +179,6 @@ EXPORT_SYMBOL(inter_module_register);
 EXPORT_SYMBOL(inter_module_unregister);
 EXPORT_SYMBOL(inter_module_get_request);
 EXPORT_SYMBOL(inter_module_put);
+
+MODULE_LICENSE("GPL");
+
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 3ea6325228..fef1af8a73 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -344,23 +344,6 @@ void __kprobes kprobe_flush_task(struct task_struct *tk)
         spin_unlock_irqrestore(&kretprobe_lock, flags);
 }
 
-/*
- * This kprobe pre_handler is registered with every kretprobe. When probe
- * hits it will set up the return probe.
- */
-static int __kprobes pre_handler_kretprobe(struct kprobe *p,
-                                           struct pt_regs *regs)
-{
-        struct kretprobe *rp = container_of(p, struct kretprobe, kp);
-        unsigned long flags = 0;
-
-        /*TODO: consider to only swap the RA after the last pre_handler fired */
-        spin_lock_irqsave(&kretprobe_lock, flags);
-        arch_prepare_kretprobe(rp, regs);
-        spin_unlock_irqrestore(&kretprobe_lock, flags);
-        return 0;
-}
-
 static inline void free_rp_inst(struct kretprobe *rp)
 {
         struct kretprobe_instance *ri;
@@ -578,6 +561,23 @@ void __kprobes unregister_jprobe(struct jprobe *jp)
 
 #ifdef ARCH_SUPPORTS_KRETPROBES
 
+/*
+ * This kprobe pre_handler is registered with every kretprobe. When probe
+ * hits it will set up the return probe.
+ */
+static int __kprobes pre_handler_kretprobe(struct kprobe *p,
+                                           struct pt_regs *regs)
+{
+        struct kretprobe *rp = container_of(p, struct kretprobe, kp);
+        unsigned long flags = 0;
+
+        /*TODO: consider to only swap the RA after the last pre_handler fired */
+        spin_lock_irqsave(&kretprobe_lock, flags);
+        arch_prepare_kretprobe(rp, regs);
+        spin_unlock_irqrestore(&kretprobe_lock, flags);
+        return 0;
+}
+
 int __kprobes register_kretprobe(struct kretprobe *rp)
 {
         int ret = 0;
@@ -631,12 +631,12 @@ void __kprobes unregister_kretprobe(struct kretprobe *rp)
         unregister_kprobe(&rp->kp);
         /* No race here */
         spin_lock_irqsave(&kretprobe_lock, flags);
-        free_rp_inst(rp);
         while ((ri = get_used_rp_inst(rp)) != NULL) {
                 ri->rp = NULL;
                 hlist_del(&ri->uflist);
         }
         spin_unlock_irqrestore(&kretprobe_lock, flags);
+        free_rp_inst(rp);
 }
 
 static int __init init_kprobes(void)
diff --git a/kernel/module.c b/kernel/module.c
index 618ed6e23e..e058aedf6b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2092,7 +2092,8 @@ static unsigned long mod_find_symname(struct module *mod, const char *name)
         unsigned int i;
 
         for (i = 0; i < mod->num_symtab; i++)
-                if (strcmp(name, mod->strtab+mod->symtab[i].st_name) == 0)
+                if (strcmp(name, mod->strtab+mod->symtab[i].st_name) == 0 &&
+                    mod->symtab[i].st_info != 'U')
                         return mod->symtab[i].st_value;
         return 0;
 }
diff --git a/kernel/sched.c b/kernel/sched.c
index f77f23f8f4..bc38804e40 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5551,13 +5551,15 @@ static void calibrate_migration_costs(const cpumask_t *cpu_map)
                         -1
 #endif
                 );
-        printk("migration_cost=");
-        for (distance = 0; distance <= max_distance; distance++) {
-                if (distance)
-                        printk(",");
-                printk("%ld", (long)migration_cost[distance] / 1000);
+        if (system_state == SYSTEM_BOOTING) {
+                printk("migration_cost=");
+                for (distance = 0; distance <= max_distance; distance++) {
+                        if (distance)
+                                printk(",");
+                        printk("%ld", (long)migration_cost[distance] / 1000);
+                }
+                printk("\n");
         }
-        printk("\n");
         j1 = jiffies;
         if (migration_debug)
                 printk("migration: %ld seconds\n", (j1-j0)/HZ);
@@ -6109,7 +6111,7 @@ void __init sched_init(void)
         runqueue_t *rq;
         int i, j, k;
 
-        for (i = 0; i < NR_CPUS; i++) {
+        for_each_cpu(i) {
                 prio_array_t *array;
 
                 rq = cpu_rq(i);
diff --git a/kernel/signal.c b/kernel/signal.c
index d3efafd810..b373fc2420 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -283,7 +283,7 @@ static struct sigqueue *__sigqueue_alloc(struct task_struct *t, gfp_t flags,
         return(q);
 }
 
-static inline void __sigqueue_free(struct sigqueue *q)
+static void __sigqueue_free(struct sigqueue *q)
 {
         if (q->flags & SIGQUEUE_PREALLOC)
                 return;
diff --git a/kernel/time.c b/kernel/time.c
index 1f23e683d6..804539165d 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -637,15 +637,16 @@ void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec)
  *
  * Returns the timespec representation of the nsec parameter.
  */
-inline struct timespec ns_to_timespec(const nsec_t nsec)
+struct timespec ns_to_timespec(const nsec_t nsec)
 {
         struct timespec ts;
 
-        if (nsec)
-                ts.tv_sec = div_long_long_rem_signed(nsec, NSEC_PER_SEC,
-                                                     &ts.tv_nsec);
-        else
-                ts.tv_sec = ts.tv_nsec = 0;
+        if (!nsec)
+                return (struct timespec) {0, 0};
+
+        ts.tv_sec = div_long_long_rem_signed(nsec, NSEC_PER_SEC, &ts.tv_nsec);
+        if (unlikely(nsec < 0))
+                set_normalized_timespec(&ts, ts.tv_sec, ts.tv_nsec);
 
         return ts;
 }