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authorShakeel Butt <shakeel.butt@linux.dev>2024-08-15 07:04:53 +0200
committerAndrew Morton <akpm@linux-foundation.org>2024-09-02 05:26:20 +0200
commit98455eef806448b2144fd47655e09abc9f6530c8 (patch)
tree8fb34aaa65d27a7543ded0b6be23581a4d46d56f /mm/memcontrol.c
parentmemcg: allocate v1 event percpu only on v1 deployment (diff)
downloadlinux-98455eef806448b2144fd47655e09abc9f6530c8.tar.xz
linux-98455eef806448b2144fd47655e09abc9f6530c8.zip
memcg: make PGPGIN and PGPGOUT v1 only
Currently PGPGIN and PGPGOUT are used and exposed in the memcg v1 only code. So, let's put them under CONFIG_MEMCG_V1. Link: https://lkml.kernel.org/r/20240815050453.1298138-8-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: T.J. Mercier <tjmercier@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6b4b51caf71b..1decbd38216e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -408,8 +408,10 @@ unsigned long lruvec_page_state_local(struct lruvec *lruvec,
/* Subset of vm_event_item to report for memcg event stats */
static const unsigned int memcg_vm_event_stat[] = {
+#ifdef CONFIG_MEMCG_V1
PGPGIN,
PGPGOUT,
+#endif
PGSCAN_KSWAPD,
PGSCAN_DIRECT,
PGSCAN_KHUGEPAGED,
@@ -1429,10 +1431,11 @@ static void memcg_stat_format(struct mem_cgroup *memcg, struct seq_buf *s)
memcg_events(memcg, PGSTEAL_KHUGEPAGED));
for (i = 0; i < ARRAY_SIZE(memcg_vm_event_stat); i++) {
+#ifdef CONFIG_MEMCG_V1
if (memcg_vm_event_stat[i] == PGPGIN ||
memcg_vm_event_stat[i] == PGPGOUT)
continue;
-
+#endif
seq_buf_printf(s, "%s %lu\n",
vm_event_name(memcg_vm_event_stat[i]),
memcg_events(memcg, memcg_vm_event_stat[i]));