The memcg_in_oom field of the struct task_struct is not used by
the cgroup v2's memory controller, so it can be happily compiled out
if CONFIG_MEMCG_V1 is not set.
Signed-off-by: Roman Gushchin <roman.gushchin@xxxxxxxxx>
---
include/linux/sched.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 61591ac6eab6..2a16023e8620 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1447,9 +1447,11 @@ struct task_struct {
unsigned int kcov_softirq;
#endif
-#ifdef CONFIG_MEMCG
+#ifdef CONFIG_MEMCG_V1
struct mem_cgroup *memcg_in_oom;
+#endif
+#ifdef CONFIG_MEMCG
/* Number of pages to reclaim on returning to userland: */
unsigned int memcg_nr_pages_over_high;
--
2.45.2.803.g4e1b14247a-goog
