[PATCH] sem2mutex: kprobes

[karo-tx-linux.git] / kernel / kprobes.c

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index fef1af8a73ce07818862eb434c29b62468e99323..1fb9f753ef6071c636701f6e0921f103e9f6aafc 100644 (file)
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -48,7 +48,7 @@
 static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE];
 static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE];
 
-DECLARE_MUTEX(kprobe_mutex);           /* Protects kprobe_table */
+DEFINE_MUTEX(kprobe_mutex);            /* Protects kprobe_table */
 DEFINE_SPINLOCK(kretprobe_lock);       /* Protects kretprobe_inst_table */
 static DEFINE_PER_CPU(struct kprobe *, kprobe_instance) = NULL;
 
@@ -460,7 +460,7 @@ static int __kprobes __register_kprobe(struct kprobe *p,
        }
 
        p->nmissed = 0;
-       down(&kprobe_mutex);
+       mutex_lock(&kprobe_mutex);
        old_p = get_kprobe(p->addr);
        if (old_p) {
                ret = register_aggr_kprobe(old_p, p);
@@ -477,7 +477,7 @@ static int __kprobes __register_kprobe(struct kprobe *p,
        arch_arm_kprobe(p);
 
 out:
-       up(&kprobe_mutex);
+       mutex_unlock(&kprobe_mutex);
 
        if (ret && probed_mod)
                module_put(probed_mod);
@@ -496,10 +496,10 @@ void __kprobes unregister_kprobe(struct kprobe *p)
        struct kprobe *old_p, *list_p;
        int cleanup_p;
 
-       down(&kprobe_mutex);
+       mutex_lock(&kprobe_mutex);
        old_p = get_kprobe(p->addr);
        if (unlikely(!old_p)) {
-               up(&kprobe_mutex);
+               mutex_unlock(&kprobe_mutex);
                return;
        }
        if (p != old_p) {
@@ -507,7 +507,7 @@ void __kprobes unregister_kprobe(struct kprobe *p)
                        if (list_p == p)
                        /* kprobe p is a valid probe */
                                goto valid_p;
-               up(&kprobe_mutex);
+               mutex_unlock(&kprobe_mutex);
                return;
        }
 valid_p:
@@ -523,7 +523,7 @@ valid_p:
                cleanup_p = 0;
        }
 
-       up(&kprobe_mutex);
+       mutex_unlock(&kprobe_mutex);
 
        synchronize_sched();
        if (p->mod_refcounted &&