diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 1cb695fb83c7268d1d0c82cec65d1495b1457760..9e4d2fbc3012a1aedb8ac350e010afa4a902a496 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -293,6 +293,11 @@ struct mem_cgroup {
 	/* memory.events */
 	atomic_long_t		memory_events[MEMCG_NR_MEMORY_EVENTS];
 
+	/*
+	 * Hint of reclaim pressure for socket memroy management. Note
+	 * that this indicator should NOT be used in legacy cgroup mode
+	 * where socket memory is accounted/charged separately.
+	 */
 	unsigned long		socket_pressure;
 
 	/* Legacy tcp memory accounting */
@@ -1280,8 +1285,8 @@ void mem_cgroup_sk_alloc(struct sock *sk);
 void mem_cgroup_sk_free(struct sock *sk);
 static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
 {
-	if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && memcg->tcpmem_pressure)
-		return true;
+	if (!cgroup_subsys_on_dfl(memory_cgrp_subsys))
+		return !!memcg->tcpmem_pressure;
 	do {
 		if (time_before(jiffies, memcg->socket_pressure))
 			return true;
diff --git a/mm/vmpressure.c b/mm/vmpressure.c
index 39021133cec8604700a30f72f0e63cdce02756f0..28d0ebe6e514d75a2d4d82507791e9cd2d458656 100644
--- a/mm/vmpressure.c
+++ b/mm/vmpressure.c
@@ -243,7 +243,17 @@ static void vmpressure_work_fn(struct work_struct *work)
 void vmpressure(gfp_t gfp, struct mem_cgroup *memcg, bool tree,
 		unsigned long scanned, unsigned long reclaimed)
 {
-	struct vmpressure *vmpr = memcg_to_vmpressure(memcg);
+	struct vmpressure *vmpr;
+
+	/*
+	 * The in-kernel users only care about the reclaim efficiency
+	 * for this @memcg rather than the whole subtree, and there
+	 * isn't and won't be any in-kernel user in a legacy cgroup.
+	 */
+	if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && !tree)
+		return;
+
+	vmpr = memcg_to_vmpressure(memcg);
 
 	/*
 	 * Here we only want to account pressure that userland is able to