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kprobes: Move enable/disable_kprobe() out from debugfs code

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Move enable/disable_kprobe() API out from debugfs related code,
because these interfaces are not related to debugfs interface.

This fixes a compiler warning.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by:  Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100427223312.2322.60512.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Masami Hiramatsu 2010-04-27 18:33:12 -04:00 committed by Ingo Molnar
parent c7993165ef
commit c0614829c1
1 changed files with 66 additions and 66 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

132
kernel/kprobes.c
View file

@ -1588,6 +1588,72 @@ static void __kprobes kill_kprobe(struct kprobe *p)
arch_remove_kprobe(p);
}
/* Disable one kprobe */
int __kprobes disable_kprobe(struct kprobe *kp)
{
int ret = 0;
struct kprobe *p;
mutex_lock(&kprobe_mutex);
/* Check whether specified probe is valid. */
p = __get_valid_kprobe(kp);
if (unlikely(p == NULL)) {
ret = -EINVAL;
goto out;
}
/* If the probe is already disabled (or gone), just return */
if (kprobe_disabled(kp))
goto out;
kp->flags |= KPROBE_FLAG_DISABLED;
if (p != kp)
/* When kp != p, p is always enabled. */
try_to_disable_aggr_kprobe(p);
if (!kprobes_all_disarmed && kprobe_disabled(p))
disarm_kprobe(p);
out:
mutex_unlock(&kprobe_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(disable_kprobe);
/* Enable one kprobe */
int __kprobes enable_kprobe(struct kprobe *kp)
{
int ret = 0;
struct kprobe *p;
mutex_lock(&kprobe_mutex);
/* Check whether specified probe is valid. */
p = __get_valid_kprobe(kp);
if (unlikely(p == NULL)) {
ret = -EINVAL;
goto out;
}
if (kprobe_gone(kp)) {
/* This kprobe has gone, we couldn't enable it. */
ret = -EINVAL;
goto out;
}
if (p != kp)
kp->flags &= ~KPROBE_FLAG_DISABLED;
if (!kprobes_all_disarmed && kprobe_disabled(p)) {
p->flags &= ~KPROBE_FLAG_DISABLED;
arm_kprobe(p);
}
out:
mutex_unlock(&kprobe_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(enable_kprobe);
void __kprobes dump_kprobe(struct kprobe *kp)
{
printk(KERN_WARNING "Dumping kprobe:\n");
@ -1805,72 +1871,6 @@ static const struct file_operations debugfs_kprobes_operations = {
.release = seq_release,
};
/* Disable one kprobe */
int __kprobes disable_kprobe(struct kprobe *kp)
{
int ret = 0;
struct kprobe *p;
mutex_lock(&kprobe_mutex);
/* Check whether specified probe is valid. */
p = __get_valid_kprobe(kp);
if (unlikely(p == NULL)) {
ret = -EINVAL;
goto out;
}
/* If the probe is already disabled (or gone), just return */
if (kprobe_disabled(kp))
goto out;
kp->flags |= KPROBE_FLAG_DISABLED;
if (p != kp)
/* When kp != p, p is always enabled. */
try_to_disable_aggr_kprobe(p);
if (!kprobes_all_disarmed && kprobe_disabled(p))
disarm_kprobe(p);
out:
mutex_unlock(&kprobe_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(disable_kprobe);
/* Enable one kprobe */
int __kprobes enable_kprobe(struct kprobe *kp)
{
int ret = 0;
struct kprobe *p;
mutex_lock(&kprobe_mutex);
/* Check whether specified probe is valid. */
p = __get_valid_kprobe(kp);
if (unlikely(p == NULL)) {
ret = -EINVAL;
goto out;
}
if (kprobe_gone(kp)) {
/* This kprobe has gone, we couldn't enable it. */
ret = -EINVAL;
goto out;
}
if (p != kp)
kp->flags &= ~KPROBE_FLAG_DISABLED;
if (!kprobes_all_disarmed && kprobe_disabled(p)) {
p->flags &= ~KPROBE_FLAG_DISABLED;
arm_kprobe(p);
}
out:
mutex_unlock(&kprobe_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(enable_kprobe);
static void __kprobes arm_all_kprobes(void)
{
struct hlist_head *head;