[S390] Add support for memory hot-remove.

This patch enables memory hot-remove on s390.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 0c2b77493db4..eb5f1b8bc57f 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -427,6 +427,8 @@ static int sclp_mem_notifier(struct notifier_block *nb,
                         sclp_attach_storage(id);
         switch (action) {
         case MEM_ONLINE:
+        case MEM_GOING_OFFLINE:
+        case MEM_CANCEL_OFFLINE:
                 break;
         case MEM_GOING_ONLINE:
                 rc = sclp_mem_change_state(start, size, 1);
@@ -434,6 +436,9 @@ static int sclp_mem_notifier(struct notifier_block *nb,
         case MEM_CANCEL_ONLINE:
                 sclp_mem_change_state(start, size, 0);
                 break;
+        case MEM_OFFLINE:
+                sclp_mem_change_state(start, size, 0);
+                break;
         default:
                 rc = -EINVAL;
                 break;