From 3cea2a67dcb8f1f39e78046a3a0cbd8076deb7a4 Mon Sep 17 00:00:00 2001
From: Bing Han <bing.han@transsion.com>
Date: Fri, 15 Apr 2022 08:16:43 +0000
Subject: [PATCH] ANDROID: add vendor fields to lruvec to record refault stats
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struct lruvec :: ANDROID_VENDOR_DATA(1)
It is pointer to a struct to record the following message:
1）the account of workingset_restore pages of cached anonymous and
   file pages
This is used to adjust the strategy and amount of reclaiming data.

Bug: 225795494
Change-Id: I34e57ee23b6c97ac91effa5b72513d238335a996
Signed-off-by: Bing Han <bing.han@transsion.com>
(cherry picked from commit 1b14ae01b09dfde89da470cac8415cefaca824fb)
(cherry picked from commit dcac70709fb59478979519d7502b2bb5b8389ff6)
---
 include/linux/mmzone.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 2eb858b66b53..34870b107ddc 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -636,6 +636,7 @@ struct lruvec {
 #ifdef CONFIG_MEMCG
 	struct pglist_data *pgdat;
 #endif
+	ANDROID_VENDOR_DATA(1);
 };
 
 /* Isolate unmapped pages */