diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index d537f3d3fed9..acf855851c03 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1372,6 +1372,9 @@ The following nested keys are defined.
 	same semantics as vm.swappiness applied to memcg reclaim with
 	all the existing limitations and potential future extensions.
 
+	The valid range for swappiness is [0-200, max], setting
+	swappiness=max exclusively reclaims anonymous memory.
+
   memory.peak
 	A read-write single value file which exists on non-root cgroups.
 
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 4e4e27d3ce3d..bc0e1c275fc0 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -414,6 +414,10 @@ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
 #define MEMCG_RECLAIM_PROACTIVE (1 << 2)
 #define MIN_SWAPPINESS 0
 #define MAX_SWAPPINESS 200
+
+/* Just recliam from anon folios in proactive memory reclaim */
+#define SWAPPINESS_ANON_ONLY (MAX_SWAPPINESS + 1)
+
 extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg,
 						  unsigned long nr_pages,
 						  gfp_t gfp_mask,
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d3b6f50e00d4..4108ff00124b 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4474,11 +4474,13 @@ static ssize_t memory_oom_group_write(struct kernfs_open_file *of,
 
 enum {
 	MEMORY_RECLAIM_SWAPPINESS = 0,
+	MEMORY_RECLAIM_SWAPPINESS_MAX,
 	MEMORY_RECLAIM_NULL,
 };
 
 static const match_table_t tokens = {
 	{ MEMORY_RECLAIM_SWAPPINESS, "swappiness=%d"},
+	{ MEMORY_RECLAIM_SWAPPINESS_MAX, "swappiness=max"},
 	{ MEMORY_RECLAIM_NULL, NULL },
 };
 
@@ -4512,6 +4514,9 @@ static ssize_t memory_reclaim(struct kernfs_open_file *of, char *buf,
 			if (swappiness < MIN_SWAPPINESS || swappiness > MAX_SWAPPINESS)
 				return -EINVAL;
 			break;
+		case MEMORY_RECLAIM_SWAPPINESS_MAX:
+			swappiness = SWAPPINESS_ANON_ONLY;
+			break;
 		default:
 			return -EINVAL;
 		}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a4fbd52a82d4..495889f621b5 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2509,6 +2509,13 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
 		goto out;
 	}
 
+	/* Proactive reclaim initiated by userspace for anonymous memory only */
+	if (swappiness == SWAPPINESS_ANON_ONLY) {
+		WARN_ON_ONCE(!sc->proactive);
+		scan_balance = SCAN_ANON;
+		goto out;
+	}
+
 	/*
 	 * Do not apply any pressure balancing cleverness when the
 	 * system is close to OOM, scan both anon and file equally