korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 04:18:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

mm: memcontrol: eliminate root memory.current

Browse Source 
memory.current on the root level doesn't add anything that wouldn't be
more accurate and detailed using system statistics.  It already doesn't
include slabs, and it'll be a pain to keep in sync when further memory
types are accounted in the memory controller.  Remove it.

Note that this applies to the new unified hierarchy interface only.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2015-11-05 18:50:23 -08:00 committed by Linus Torvalds
parent e0ec90ee7e
commit f5fc3c5d81
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
mm/memcontrol.c
View File

@ -5026,7 +5026,9 @@ static void mem_cgroup_bind(struct cgroup_subsys_state *root_css)
static u64 memory_current_read(struct cgroup_subsys_state *css,
struct cftype *cft)
{
return mem_cgroup_usage(mem_cgroup_from_css(css), false);
struct mem_cgroup *memcg = mem_cgroup_from_css(css);
return (u64)page_counter_read(&memcg->memory) * PAGE_SIZE;
}
static int memory_low_show(struct seq_file *m, void *v)
@ -5138,6 +5140,7 @@ static int memory_events_show(struct seq_file *m, void *v)
static struct cftype memory_files[] = {
{
.name = "current",
.flags = CFTYPE_NOT_ON_ROOT,
.read_u64 = memory_current_read,
},
{