1 files changed, 16 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d780351835e9..5f2ce616c046 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -227,6 +227,22 @@ config UNUSED_SYMBOLS
           you really need it, and what the merge plan to the mainline kernel for
           your module is.
 
+config PAGE_OWNER
+        bool "Track page owner"
+        depends on DEBUG_KERNEL && STACKTRACE_SUPPORT
+        select DEBUG_FS
+        select STACKTRACE
+        select PAGE_EXTENSION
+        help
+          This keeps track of what call chain is the owner of a page, may
+          help to find bare alloc_page(s) leaks. Even if you include this
+          feature on your build, it is disabled in default. You should pass
+          "page_owner=on" to boot parameter in order to enable it. Eats
+          a fair amount of memory if enabled. See tools/vm/page_owner_sort.c
+          for user-space helper.
+
+          If unsure, say N.
+
 config DEBUG_FS
         bool "Debug Filesystem"
         help