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[tip:perf/core] kprobes: Move enable/disable_kprobe() out from debugfs code
- From: tip-bot for Masami Hiramatsu <mhiramat at redhat dot com>
- To: linux-tip-commits at vger dot kernel dot org
- Cc: linux-kernel at vger dot kernel dot org, hpa at zytor dot com, mingo at redhat dot com, tony dot luck at intel dot com, ananth at in dot ibm dot com, dle-develop at lists dot sourceforge dot net, tglx at linutronix dot de, mhiramat at redhat dot com, mingo at elte dot hu, systemtap at sources dot redhat dot com
- Date: Sat, 8 May 2010 18:20:42 GMT
- Subject: [tip:perf/core] kprobes: Move enable/disable_kprobe() out from debugfs code
- Git-commit-id: c0614829c16ab9d31f1b7d40516decfbf3d32102
- References: <20100427223312.2322.60512.stgit@localhost6.localdomain6>
- Reply-to: mingo at redhat dot com, hpa at zytor dot com, linux-kernel at vger dot kernel dot org, tony dot luck at intel dot com, ananth at in dot ibm dot com, dle-develop at lists dot sourceforge dot net, tglx at linutronix dot de, mhiramat at redhat dot com, mingo at elte dot hu, systemtap at sources dot redhat dot com
Commit-ID: c0614829c16ab9d31f1b7d40516decfbf3d32102
Gitweb: http://git.kernel.org/tip/c0614829c16ab9d31f1b7d40516decfbf3d32102
Author: Masami Hiramatsu <mhiramat@redhat.com>
AuthorDate: Tue, 27 Apr 2010 18:33:12 -0400
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sat, 8 May 2010 18:08:30 +0200
kprobes: Move enable/disable_kprobe() out from debugfs code
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>
---
kernel/kprobes.c | 132 +++++++++++++++++++++++++++---------------------------
1 files changed, 66 insertions(+), 66 deletions(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 0ed46f3..282035f 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -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;