[PATCH] mm: Add config option for default panic_on_oom value

From: Eddie James
Date: Wed May 11 2022 - 14:34:17 EST


Add the option to kconfig and set the default panic_on_value.

Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx>
---
mm/Kconfig | 7 +++++++
mm/oom_kill.c | 2 +-
2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 675a6be43739..1fde865b0a63 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -825,6 +825,13 @@ config ZSMALLOC_STAT
config GENERIC_EARLY_IOREMAP
bool

+config PANIC_ON_OOM_DEFAULT
+ int "Startup setting for panic_on_oom"
+ default 0
+ range 0 2
+ help
+ This is the default startup value for /proc/sys/vm/panic_on_oom
+
config STACK_MAX_DEFAULT_SIZE_MB
int "Default maximum user stack size for 32-bit processes (MB)"
default 100
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 3996301450e8..a6a9cc5635f8 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -52,7 +52,7 @@
#define CREATE_TRACE_POINTS
#include <trace/events/oom.h>

-static int sysctl_panic_on_oom;
+static int sysctl_panic_on_oom = CONFIG_PANIC_ON_OOM_DEFAULT;
static int sysctl_oom_kill_allocating_task;
static int sysctl_oom_dump_tasks = 1;

--
2.27.0