The patch titled
Subject: mm/memcontrol.c: remove unused private flag of memory.oom_control
has been added to the -mm tree. Its filename is
mm-memcontrolc-remove-unused-private-flag-of-memoryoom_control.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrolc-remove-unused-private-flag-of-memoryoom_control.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrolc-remove-unused-private-flag-of-memoryoom_control.patch
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------------------------------------------------------
From: Lu Jialin <lujialin4@xxxxxxxxxx>
Subject: mm/memcontrol.c: remove unused private flag of memory.oom_control
There is no use for the private value, __OOM_TYPE and OOM notifier
OOM_CONTROL. Therefore remove them to make the code clean.
Link: https://lkml.kernel.org/r/20220421122755.40899-1-lujialin4@xxxxxxxxxx
Signed-off-by: Lu Jialin <lujialin4@xxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Acked-by: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 4 ----
1 file changed, 4 deletions(-)
--- a/mm/memcontrol.c~mm-memcontrolc-remove-unused-private-flag-of-memoryoom_control
+++ a/mm/memcontrol.c
@@ -210,7 +210,6 @@ static struct move_charge_struct {
enum res_type {
_MEM,
_MEMSWAP,
- _OOM_TYPE,
_KMEM,
_TCP,
};
@@ -218,8 +217,6 @@ 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
@@ -4888,7 +4885,6 @@ static struct cftype mem_cgroup_legacy_f
.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",
_
Patches currently in -mm which might be from lujialin4@xxxxxxxxxx are
mm-memcontrolc-make-cgroup_memory_noswap-static.patch
mm-memcontrolc-remove-unused-private-flag-of-memoryoom_control.patch
