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authorMichal Hocko <mhocko@suse.cz>2013-04-29 15:07:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:34 -0700
commitacb6d558f4c8fbacc8e774c9d7737220a3777882 (patch)
tree862853828c3a666455dc78a6f807e764d8ab5ad1
parentee5df0570c8af2610b28ab79bd8f8f8195687773 (diff)
memcg: do not check for do_swap_account in mem_cgroup_{read,write,reset}
Since commit 2d11085e404f ("memcg: do not create memsw files if swap accounting is disabled") memsw files are created only if memcg swap accounting is enabled so it doesn't make any sense to check for it explicitly in mem_cgroup_read(), mem_cgroup_write() and mem_cgroup_reset(). Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/memcontrol.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2bdac3ececd0..d280016039f2 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5025,9 +5025,6 @@ static ssize_t mem_cgroup_read(struct cgroup *cont, struct cftype *cft,
type = MEMFILE_TYPE(cft->private);
name = MEMFILE_ATTR(cft->private);
- if (!do_swap_account && type == _MEMSWAP)
- return -EOPNOTSUPP;
-
switch (type) {
case _MEM:
if (name == RES_USAGE)
@@ -5162,9 +5159,6 @@ static int mem_cgroup_write(struct cgroup *cont, struct cftype *cft,
type = MEMFILE_TYPE(cft->private);
name = MEMFILE_ATTR(cft->private);
- if (!do_swap_account && type == _MEMSWAP)
- return -EOPNOTSUPP;
-
switch (name) {
case RES_LIMIT:
if (mem_cgroup_is_root(memcg)) { /* Can't set limit on root */
@@ -5241,9 +5235,6 @@ static int mem_cgroup_reset(struct cgroup *cont, unsigned int event)
type = MEMFILE_TYPE(event);
name = MEMFILE_ATTR(event);
- if (!do_swap_account && type == _MEMSWAP)
- return -EOPNOTSUPP;
-
switch (name) {
case RES_MAX_USAGE:
if (type == _MEM)