vt8623fb: new framebuffer driver for VIA VT8623

[powerpc.git] / kernel / profile.c

diff --git a/kernel/profile.c b/kernel/profile.c
index 11550b2..cc91b9b 100644 (file)
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -40,7 +40,10 @@ int (*timer_hook)(struct pt_regs *) __read_mostly;
 
 static atomic_t *prof_buffer;
 static unsigned long prof_len, prof_shift;
+
 int prof_on __read_mostly;
+EXPORT_SYMBOL_GPL(prof_on);
+
 static cpumask_t prof_cpu_mask = CPU_MASK_ALL;
 #ifdef CONFIG_SMP
 static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
@@ -52,6 +55,7 @@ static int __init profile_setup(char * str)
 {
        static char __initdata schedstr[] = "schedule";
        static char __initdata sleepstr[] = "sleep";
+       static char __initdata kvmstr[] = "kvm";
        int par;
 
        if (!strncmp(str, sleepstr, strlen(sleepstr))) {
@@ -72,6 +76,15 @@ static int __init profile_setup(char * str)
                printk(KERN_INFO
                        "kernel schedule profiling enabled (shift: %ld)\n",
                        prof_shift);
+       } else if (!strncmp(str, kvmstr, strlen(kvmstr))) {
+               prof_on = KVM_PROFILING;
+               if (str[strlen(kvmstr)] == ',')
+                       str += strlen(kvmstr) + 1;
+               if (get_option(&str, &par))
+                       prof_shift = par;
+               printk(KERN_INFO
+                       "kernel KVM profiling enabled (shift: %ld)\n",
+                       prof_shift);
        } else if (get_option(&str, &par)) {
                prof_shift = par;
                prof_on = CPU_PROFILING;
@@ -327,6 +340,7 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
 
        switch (action) {
        case CPU_UP_PREPARE:
+       case CPU_UP_PREPARE_FROZEN:
                node = cpu_to_node(cpu);
                per_cpu(cpu_profile_flip, cpu) = 0;
                if (!per_cpu(cpu_profile_hits, cpu)[1]) {
@@ -352,10 +366,13 @@ static int __devinit profile_cpu_callback(struct notifier_block *info,
                __free_page(page);
                return NOTIFY_BAD;
        case CPU_ONLINE:
+       case CPU_ONLINE_FROZEN:
                cpu_set(cpu, prof_cpu_mask);
                break;
        case CPU_UP_CANCELED:
+       case CPU_UP_CANCELED_FROZEN:
        case CPU_DEAD:
+       case CPU_DEAD_FROZEN:
                cpu_clear(cpu, prof_cpu_mask);
                if (per_cpu(cpu_profile_hits, cpu)[0]) {
                        page = virt_to_page(per_cpu(cpu_profile_hits, cpu)[0]);
@@ -387,6 +404,8 @@ void profile_hits(int type, void *__pc, unsigned int nr_hits)
 }
 #endif /* !CONFIG_SMP */
 
+EXPORT_SYMBOL_GPL(profile_hits);
+
 void profile_tick(int type)
 {
        struct pt_regs *regs = get_irq_regs();
@@ -434,7 +453,6 @@ void create_prof_cpu_mask(struct proc_dir_entry *root_irq_dir)
        /* create /proc/irq/prof_cpu_mask */
        if (!(entry = create_proc_entry("prof_cpu_mask", 0600, root_irq_dir)))
                return;
-       entry->nlink = 1;
        entry->data = (void *)&prof_cpu_mask;
        entry->read_proc = prof_cpu_mask_read_proc;
        entry->write_proc = prof_cpu_mask_write_proc;