4.16-stable review patch. If anyone has any objections, please let me know.
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From: David Hildenbrand david@redhat.com
commit ed1596f9ab958dd156a66c9ff1029d3761c1786a upstream.
We have to free memory again when we cancel onlining, otherwise a later onlining attempt will fail.
Link: http://lkml.kernel.org/r/20180522100756.18478-2-david@redhat.com Fixes: fa69b5989bb0 ("mm/kasan: add support for memory hotplug") Signed-off-by: David Hildenbrand david@redhat.com Acked-by: Andrey Ryabinin aryabinin@virtuozzo.com Cc: Alexander Potapenko glider@google.com Cc: Dmitry Vyukov dvyukov@google.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- mm/kasan/kasan.c | 1 + 1 file changed, 1 insertion(+)
--- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -865,6 +865,7 @@ static int __meminit kasan_mem_notifier( kmemleak_ignore(ret); return NOTIFY_OK; } + case MEM_CANCEL_ONLINE: case MEM_OFFLINE: { struct vm_struct *vm;