From 3efffff55377256a3455354c2739ab0461ce7eea Mon Sep 17 00:00:00 2001
From: Liujie Xie <xieliujie@oppo.com>
Date: Fri, 25 Jun 2021 22:21:35 +0800
Subject: [PATCH] ANDROID: Allow vendor module to reclaim a memcg

Export try_to_free_mem_cgroup_pages function to allow vendor modules to reclaim a memory cgroup.

Bug: 192052083

Signed-off-by: Liujie Xie <xieliujie@oppo.com>
(cherry picked from commit a8385d61f27b57d98fb6245a23477c6ed5db4a7c)
(cherry picked from commit 1ed025b9a1c8dc1420ccf1a656797b85eacd2bdb)

Change-Id: Iec6ef50f5c71c62d0c9aa6de90e56a143dac61c1
Signed-off-by: lvwenhuan <lvwenhuan@oppo.com>
---
 mm/vmscan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index b2dcbe5d68b4..7c1d07b3e7f5 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -7081,6 +7081,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg,
 
 	return nr_reclaimed;
 }
+EXPORT_SYMBOL_GPL(try_to_free_mem_cgroup_pages);
 #endif
 
 static void kswapd_age_node(struct pglist_data *pgdat, struct scan_control *sc)