[PATCH -next] mm/memcontrol.c: remove unused private flag of memory.oom_control

Lu Jialin
2022-04-21T12:27:55Z

There is no use for the private value, __OOM_TYPE and OOM notifier
OOM_CONTROL. Therefore remove them to make the code clean.

Signed-off-by: Lu Jialin <lujialin4-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
---
mm/memcontrol.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 725f76723220..3aea256bfe7a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -209,7 +209,6 @@ static struct move_charge_struct {
enum res_type {
_MEM,
_MEMSWAP,
- _OOM_TYPE,
_KMEM,
_TCP,
};
@@ -217,8 +216,6 @@ enum res_type {
#define MEMFILE_PRIVATE(x, val) ((x) << 16 | (val))
#define MEMFILE_TYPE(val) ((val) >> 16 & 0xffff)
#define MEMFILE_ATTR(val) ((val) & 0xffff)
-/* Used for OOM notifier */
-#define OOM_CONTROL (0)

/*
* Iteration constructs for visiting all cgroups (under a tree). If
@@ -4883,7 +4880,6 @@ static struct cftype mem_cgroup_legacy_files[] = {
.name = "oom_control",
.seq_show = mem_cgroup_oom_control_read,
.write_u64 = mem_cgroup_oom_control_write,
- .private = MEMFILE_PRIVATE(_OOM_TYPE, OOM_CONTROL),
},
{
.name = "pressure_level",
--
2.17.1