linux-kernel - [PATCH] mm/memcg: no one use charge

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Date:   Tue,  8 Sep 2020 16:12:07 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mm/memcg: no one use charge_type

After commit 0a31bc97c80c3f mm: memcontrol: rewrite uncharge API, no one
using MEM_CGROUP_CHARGE_TYPE_xxx, let's remove them.

Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com>
Cc: Johannes Weiner <hannes@...xchg.org> 
Cc: Michal Hocko <mhocko@...nel.org> 
Cc: Vladimir Davydov <vdavydov.dev@...il.com> 
Cc: Andrew Morton <akpm@...ux-foundation.org> 
Cc: cgroups@...r.kernel.org 
Cc: linux-mm@...ck.org 
Cc: linux-kernel@...r.kernel.org 
---
 mm/memcontrol.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5d52b8a88bea..d925905920bf 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -199,14 +199,6 @@ struct mem_cgroup_event {
 #define	MEM_CGROUP_MAX_RECLAIM_LOOPS		100
 #define	MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS	2
 
-enum charge_type {
-	MEM_CGROUP_CHARGE_TYPE_CACHE = 0,
-	MEM_CGROUP_CHARGE_TYPE_ANON,
-	MEM_CGROUP_CHARGE_TYPE_SWAPOUT,	/* for accounting swapcache */
-	MEM_CGROUP_CHARGE_TYPE_DROP,	/* a page was unused swap cache */
-	NR_CHARGE_TYPE,
-};
-
 /* for encoding cft->private value on file */
 enum res_type {
 	_MEM,
-- 
1.8.3.1