Commit 8aa49762 authored by Changbin Du's avatar Changbin Du Committed by Linus Torvalds
Browse files

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.com


Signed-off-by: default avatarChangbin Du <changbin.du@gmail.com>
Acked-by: default avatarVlastimil 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 43cca0b1

lib/Kconfig.debug

+0 −17
Original line number Diff line number Diff line
@@ -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

+17 −0
Original line number Diff line number Diff line
@@ -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

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