kabi: reserve space for perf subsystem related structures

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4GFVG?from=project-issue
CVE: NA

-------------------------------

Reserve space for the structures in perf subsystem.
Signed-off-by: NYang Jihong <yangjihong1@huawei.com>
Reviewed-by: NKuohai Xu <xukuohai@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

include/linux/perf_event.h

@@ -57,6 +57,7 @@ struct perf_guest_info_callbacks {
 #include <linux/cgroup.h>
 #include <linux/refcount.h>
 #include <linux/security.h>
+#include <linux/kabi.h>
 #include <asm/local.h>
 
 struct perf_callchain_entry {
@@ -513,6 +514,13 @@ struct pmu {
 	 * Check period value for PERF_EVENT_IOC_PERIOD ioctl.
 	 */
 	int (*check_period)		(struct perf_event *event, u64 value); /* optional */
+
+	KABI_RESERVE(1)
+	KABI_RESERVE(2)
+	KABI_RESERVE(3)
+	KABI_RESERVE(4)
+	KABI_RESERVE(5)
+	KABI_RESERVE(6)
 };
 
 enum perf_addr_filter_action_t {