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[v1,2/2] kasan: fix memory hotplug during boot

Message ID 20180522095515.2735-3-david@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

David Hildenbrand May 22, 2018, 9:55 a.m. UTC 
Using module_init() is wrong. E.g. ACPI adds and onlines memory before
our memory notifier gets registered.

This makes sure that ACPI memory detected during boot up will not
result in a kernel crash.

Easily reproducable with QEMU, just specify a DIMM when starting up.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 mm/kasan/kasan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index 8baefe1a674b..04b60d2b607c 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -892,5 +892,5 @@  static int __init kasan_memhotplug_init(void)
 	return 0;
 }
 
-module_init(kasan_memhotplug_init);
+core_initcall(kasan_memhotplug_init);
 #endif