s390/kdump: Return NOTIFY_OK for all actions other than MEM_GOING_OFFLINE
We only have to check kdump memory for the MEM_GOING_OFFLINE action.
Therefore skip the test and return NOTIFY_OK for all other memory
hotplug actions.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 1e2264b..ae1d5be 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -501,6 +501,8 @@
{
struct memory_notify *arg = data;
+ if (action != MEM_GOING_OFFLINE)
+ return NOTIFY_OK;
if (arg->start_pfn < PFN_DOWN(resource_size(&crashk_res)))
return NOTIFY_BAD;
if (arg->start_pfn > PFN_DOWN(crashk_res.end))