target/linux/brcm2708/patches-4.1/0033-config-Enable-CONFIG_MEMCG-but-leave-it-disabled-due.patch

   1 From efd60949b03b034da398f15fc9b74d3f3a06c48a Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Wed, 18 Dec 2013 22:16:19 +0000
   4 Subject: [PATCH 033/203] config: Enable CONFIG_MEMCG, but leave it disabled
   5  (due to memory cost). Enable with cgroup_enable=memory.
   6
   7 ---
   8  kernel/cgroup.c | 23 +++++++++++++++++++++++
   9  mm/memcontrol.c |  1 +
  10  2 files changed, 24 insertions(+)
  11
  12 --- a/kernel/cgroup.c
  13 +++ b/kernel/cgroup.c
  14 @@ -5394,6 +5394,29 @@ static int __init cgroup_disable(char *s
  15  }
  16  __setup("cgroup_disable=", cgroup_disable);
  17
  18 +static int __init cgroup_enable(char *str)
  19 +{
  20 +       struct cgroup_subsys *ss;
  21 +       char *token;
  22 +       int i;
  23 +
  24 +       while ((token = strsep(&str, ",")) != NULL) {
  25 +               if (!*token)
  26 +                       continue;
  27 +
  28 +               for_each_subsys(ss, i) {
  29 +                       if (!strcmp(token, ss->name)) {
  30 +                               ss->disabled = 0;
  31 +                               printk(KERN_INFO "Enabling %s control group"
  32 +                                       " subsystem\n", ss->name);
  33 +                               break;
  34 +                       }
  35 +               }
  36 +       }
  37 +       return 1;
  38 +}
  39 +__setup("cgroup_enable=", cgroup_enable);
  40 +
  41  static int __init cgroup_set_legacy_files_on_dfl(char *str)
  42  {
  43         printk("cgroup: using legacy files on the default hierarchy\n");
  44 --- a/mm/memcontrol.c
  45 +++ b/mm/memcontrol.c
  46 @@ -5388,6 +5388,7 @@ struct cgroup_subsys memory_cgrp_subsys
  47         .dfl_cftypes = memory_files,
  48         .legacy_cftypes = mem_cgroup_legacy_files,
  49         .early_init = 0,
  50 +        .disabled = 1,
  51  };
  52
  53  /**