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Commit 2aca3e3a authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "mm/page_owner: ask users about default setting of PAGE_OWNER"

parents 635d5e56 08e6ab0a

mm/Kconfig.debug

+11 −0
Original line number Diff line number Diff line
@@ -72,6 +72,17 @@ config PAGE_OWNER 


	  If unsure, say N.



config PAGE_OWNER_ENABLE_DEFAULT

	bool "Enable Track page owner by default"

	depends on PAGE_OWNER

	help

	  This keeps track of what call chain is the owner of a page, may

	  help to find bare alloc_page(s) leaks. If you include this

	  feature on your build, it is enabled by default. You should pass

	  "page_owner=off" to boot parameter in order to disable it. Eats

	  a fair amount of memory if enabled. See tools/vm/page_owner_sort.c

	  for user-space helper.



config PAGE_POISONING

	bool "Poison pages after freeing"

	select PAGE_POISONING_NO_SANITY if HIBERNATION

mm/page_owner.c

+5 −1
Original line number Diff line number Diff line
@@ -29,7 +29,8 @@ struct page_owner { 
#endif

};



static bool page_owner_disabled = true;

static bool page_owner_disabled =

	!IS_ENABLED(CONFIG_PAGE_OWNER_ENABLE_DEFAULT);

DEFINE_STATIC_KEY_FALSE(page_owner_inited);



static depot_stack_handle_t dummy_handle;
@@ -46,6 +47,9 @@ static int __init early_page_owner_param(char *buf) 
	if (strcmp(buf, "on") == 0)

		page_owner_disabled = false;



	if (strcmp(buf, "off") == 0)

		page_owner_disabled = true;



	return 0;

}

early_param("page_owner", early_page_owner_param);