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Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6f682901deb..3468c38adde 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -45,7 +45,7 @@ struct cgroup_subsys mem_cgroup_subsys __read_mostly;
#define MEM_CGROUP_RECLAIM_RETRIES 5
#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
-/* Turned on only when memory cgroup is enabled && really_do_swap_account = 0 */
+/* Turned on only when memory cgroup is enabled && really_do_swap_account = 1 */
int do_swap_account __read_mostly;
static int really_do_swap_account __initdata = 1; /* for remember boot option*/
#else
@@ -1763,16 +1763,14 @@ static int mem_cgroup_resize_limit(struct mem_cgroup *memcg,
return ret;
}
-int mem_cgroup_resize_memsw_limit(struct mem_cgroup *memcg,
- unsigned long long val)
+static int mem_cgroup_resize_memsw_limit(struct mem_cgroup *memcg,
+ unsigned long long val)
{
int retry_count;
u64 memlimit, oldusage, curusage;
int children = mem_cgroup_count_children(memcg);
int ret = -EBUSY;
- if (!do_swap_account)
- return -EINVAL;
/* see mem_cgroup_resize_res_limit */
retry_count = children * MEM_CGROUP_RECLAIM_RETRIES;
oldusage = res_counter_read_u64(&memcg->memsw, RES_USAGE);
@@ -2007,8 +2005,7 @@ static u64 mem_cgroup_read(struct cgroup *cont, struct cftype *cft)
val = res_counter_read_u64(&mem->res, name);
break;
case _MEMSWAP:
- if (do_swap_account)
- val = res_counter_read_u64(&mem->memsw, name);
+ val = res_counter_read_u64(&mem->memsw, name);
break;
default:
BUG();