mm/page_owner: move config option to mm/Kconfig.debug

Move the PAGE_OWNER option from submenu "Compile-time checks and
compiler options" to dedicated submenu "Memory Debugging".

Link: http://lkml.kernel.org/r/20190120024254.6270-1-changbin.du@gmail.comSigned-off-by: Changbin Du <changbin.du@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/Kconfig.debug

@@ -265,23 +265,6 @@ 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 STACKDEPOT
-	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

mm/Kconfig.debug

@@ -39,6 +39,23 @@ config DEBUG_PAGEALLOC_ENABLE_DEFAULT
 	  Enable debug page memory allocations by default? This value
 	  can be overridden by debug_pagealloc=off|on.
 
+config PAGE_OWNER
+	bool "Track page owner"
+	depends on DEBUG_KERNEL && STACKTRACE_SUPPORT
+	select DEBUG_FS
+	select STACKTRACE
+	select STACKDEPOT
+	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 PAGE_POISONING
 	bool "Poison pages after freeing"
 	select PAGE_POISONING_NO_SANITY if HIBERNATION