kprobes: add (un)register_kprobes for batch registration
Introduce unregister_/register_kprobes() for kprobe batch registration. This
can reduce waiting time for synchronized_sched() when a lot of probes have to
be unregistered at once.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Shaohua Li <shaohua.li@intel.com>
Cc: David Miller <davem@davemloft.net>
Cc: "Frank Ch. Eigler" <fche@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index cd507ab..2ba7df6 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -234,6 +234,8 @@
int register_kprobe(struct kprobe *p);
void unregister_kprobe(struct kprobe *p);
+int register_kprobes(struct kprobe **kps, int num);
+void unregister_kprobes(struct kprobe **kps, int num);
int setjmp_pre_handler(struct kprobe *, struct pt_regs *);
int longjmp_break_handler(struct kprobe *, struct pt_regs *);
int register_jprobe(struct jprobe *p);
@@ -261,9 +263,16 @@
{
return -ENOSYS;
}
+static inline int register_kprobes(struct kprobe **kps, int num)
+{
+ return -ENOSYS;
+}
static inline void unregister_kprobe(struct kprobe *p)
{
}
+static inline void unregister_kprobes(struct kprobe **kps, int num)
+{
+}
static inline int register_jprobe(struct jprobe *p)
{
return -ENOSYS;