The patch titled
Subject: mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3
has been added to the -mm tree. Its filename is
mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3.patch
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------------------------------------------------------
From: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Subject: mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3
1. Fix compiler error on powerpc architecture reported by kernel test robot.
2. Fix a typo from "anno" to "anon".
Link: https://lkml.kernel.org/r/20200913070010.44053-1-songmuchun@xxxxxxxxxxxxx
Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Suggested-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Chris Down <chris@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 85 +++++++++++++++++++++++++++++-----------------
1 file changed, 54 insertions(+), 31 deletions(-)
--- a/mm/memcontrol.c~mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3
+++ a/mm/memcontrol.c
@@ -6384,6 +6384,52 @@ static int memory_stat_show(struct seq_f
}
#ifdef CONFIG_NUMA
+struct numa_stat {
+ const char *name;
+ unsigned int ratio;
+ enum node_stat_item idx;
+};
+
+static struct numa_stat numa_stats[] = {
+ { "anon", PAGE_SIZE, NR_ANON_MAPPED },
+ { "file", PAGE_SIZE, NR_FILE_PAGES },
+ { "kernel_stack", 1024, NR_KERNEL_STACK_KB },
+ { "shmem", PAGE_SIZE, NR_SHMEM },
+ { "file_mapped", PAGE_SIZE, NR_FILE_MAPPED },
+ { "file_dirty", PAGE_SIZE, NR_FILE_DIRTY },
+ { "file_writeback", PAGE_SIZE, NR_WRITEBACK },
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ /*
+ * The ratio will be initialized in numa_stats_init(). Because
+ * on some architectures, the macro of HPAGE_PMD_SIZE is not
+ * constant(e.g. powerpc).
+ */
+ { "anon_thp", 0, NR_ANON_THPS },
+#endif
+ { "inactive_anon", PAGE_SIZE, NR_INACTIVE_ANON },
+ { "active_anon", PAGE_SIZE, NR_ACTIVE_ANON },
+ { "inactive_file", PAGE_SIZE, NR_INACTIVE_FILE },
+ { "active_file", PAGE_SIZE, NR_ACTIVE_FILE },
+ { "unevictable", PAGE_SIZE, NR_UNEVICTABLE },
+ { "slab_reclaimable", 1, NR_SLAB_RECLAIMABLE_B },
+ { "slab_unreclaimable", 1, NR_SLAB_UNRECLAIMABLE_B },
+};
+
+static int __init numa_stats_init(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(numa_stats); i++) {
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ if (numa_stats[i].idx == NR_ANON_THPS)
+ numa_stats[i].ratio = HPAGE_PMD_SIZE;
+#endif
+ }
+
+ return 0;
+}
+pure_initcall(numa_stats_init);
+
static unsigned long memcg_node_page_state(struct mem_cgroup *memcg,
unsigned int nid,
enum node_stat_item idx)
@@ -6394,33 +6440,7 @@ static unsigned long memcg_node_page_sta
static const char *memory_numa_stat_format(struct mem_cgroup *memcg)
{
- struct numa_stat {
- const char *name;
- unsigned int ratio;
- enum node_stat_item idx;
- };
-
- static const struct numa_stat stats[] = {
- { "anno", PAGE_SIZE, NR_ANON_MAPPED },
- { "file", PAGE_SIZE, NR_FILE_PAGES },
- { "kernel_stack", 1024, NR_KERNEL_STACK_KB },
- { "shmem", PAGE_SIZE, NR_SHMEM },
- { "file_mapped", PAGE_SIZE, NR_FILE_MAPPED },
- { "file_dirty", PAGE_SIZE, NR_FILE_DIRTY },
- { "file_writeback", PAGE_SIZE, NR_WRITEBACK },
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- { "anon_thp", HPAGE_PMD_SIZE, NR_ANON_THPS },
-#endif
- { "inactive_anon", PAGE_SIZE, NR_INACTIVE_ANON },
- { "active_anon", PAGE_SIZE, NR_ACTIVE_ANON },
- { "inactive_file", PAGE_SIZE, NR_INACTIVE_FILE },
- { "active_file", PAGE_SIZE, NR_ACTIVE_FILE },
- { "unevictable", PAGE_SIZE, NR_UNEVICTABLE },
- { "slab_reclaimable", 1, NR_SLAB_RECLAIMABLE_B },
- { "slab_unreclaimable", 1, NR_SLAB_UNRECLAIMABLE_B },
- };
-
- int i, nid;
+ int i;
struct seq_buf s;
/* Reserve a byte for the trailing null */
@@ -6428,13 +6448,16 @@ static const char *memory_numa_stat_form
if (!s.buffer)
return NULL;
- for (i = 0; i < ARRAY_SIZE(stats); i++) {
- seq_buf_printf(&s, "%s", stats[i].name);
+ for (i = 0; i < ARRAY_SIZE(numa_stats); i++) {
+ int nid;
+
+ seq_buf_printf(&s, "%s", numa_stats[i].name);
for_each_node_state(nid, N_MEMORY) {
u64 size;
- size = memcg_node_page_state(memcg, nid, stats[i].idx);
- size *= stats[i].ratio;
+ size = memcg_node_page_state(memcg, nid,
+ numa_stats[i].idx);
+ size *= numa_stats[i].ratio;
seq_buf_printf(&s, " N%d=%llu", nid, size);
}
seq_buf_putc(&s, '\n');
_
Patches currently in -mm which might be from songmuchun@xxxxxxxxxxxxx are
kprobes-fix-kill-kprobe-which-has-been-marked-as-gone.patch
mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2.patch
mm-memcontrol-add-the-missing-numa_stat-interface-for-cgroup-v2-v3.patch
mm-memcontrol-fix-out-of-bounds-on-the-buf-returned-by-memory_stat_format.patch
mmhwpoison-refactor-soft_offline_huge_page-and-__soft_offline_page-fix-2.patch
