evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mm: allow page poisoning to be enabled by default.

Browse source 
Add a config option to enable page poisoning by
default. The kernel command line option "page_poison"
can be used to change the behaviour during boot.

Change-Id: Ie70763841191a722b1c6125dfad119a29ed0f605
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
This commit is contained in:
Vinayak Menon 2017-04-05 10:49:14 +05:30
parent 49118fe6a3
commit 6f4a4c2a6c
2 changed files with 12 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
mm/Kconfig.debug
View file

@ -65,6 +65,16 @@ config PAGE_POISONING
If unsure, say N
config PAGE_POISONING_ENABLE_DEFAULT
bool "Enable page poisoning by default?"
default n
depends on PAGE_POISONING
---help---
Enable page poisoning of free pages by default? This value
can be overridden by page_poison=off|on. This can be used
to avoid passing the kernel parameter and let page poisoning
feature enabled by default.
config PAGE_POISONING_NO_SANITY
depends on PAGE_POISONING
bool "Only poison, don't sanity check"

3
mm/page_poison.c
View file

@ -6,7 +6,8 @@
#include <linux/poison.h>
#include <linux/ratelimit.h>
static bool want_page_poisoning __read_mostly;
static bool want_page_poisoning __read_mostly
= IS_ENABLED(CONFIG_PAGE_POISONING_ENABLE_DEFAULT);
static int early_page_poison_param(char *buf)
{