diff --git a/Documentation/mm/allocation-profiling.rst b/Documentation/mm/allocation-profiling.rst
index 5389d241176a..e928aa3e4e1e 100644
--- a/Documentation/mm/allocation-profiling.rst
+++ b/Documentation/mm/allocation-profiling.rst
@@ -43,6 +43,17 @@ sysctl:
   warnings produced by allocations made while profiling is disabled and freed
   when it's enabled.
 
+  /proc/sys/vm/mem_profiling_compressed
+
+  1: Page alloc tag compression is enabled.
+
+  0: Page alloc tag compression is disabled.
+
+  This reflects a static boot-time configuration of how page allocation tags are
+  stored (in page flags when compression is enabled and in page_ext when disabled).
+  Toggling ``mem_profiling`` at runtime does not change the state of
+  ``mem_profiling_compressed``.
+
 Runtime info:
   /proc/allocinfo
 
diff --git a/mm/alloc_tag.c b/mm/alloc_tag.c
index e93e7fec1f06..b60ee89704cc 100644
--- a/mm/alloc_tag.c
+++ b/mm/alloc_tag.c
@@ -961,6 +961,12 @@ static const struct ctl_table memory_allocation_profiling_sysctls[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_mem_profiling_handler,
 	},
+	{
+		.procname	= "mem_profiling_compressed",
+		.data		= &mem_profiling_compressed,
+		.mode		= 0444,
+		.proc_handler	= proc_do_static_key,
+	},
 };
 
 static void __init sysctl_init(void)