s390/memory hotplug: use pfmf instruction to initialize storage keys

Move and rename init_storage_keys() to pageattr.c, so it can also be
used from the sclp memory hotplug code in order to initialize
storage keys.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 8 insertions, 9 deletions

diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 71ea923c322d..0dfa88a30118 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -19,10 +19,11 @@
 #include <linux/memory.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <asm/ctl_reg.h>
 #include <asm/chpid.h>
-#include <asm/sclp.h>
 #include <asm/setup.h>
-#include <asm/ctl_reg.h>
+#include <asm/page.h>
+#include <asm/sclp.h>
 
 #include "sclp.h"
 
@@ -400,17 +401,15 @@ out:
 
 static int sclp_assign_storage(u16 rn)
 {
-        unsigned long long start, address;
+        unsigned long long start;
         int rc;
 
         rc = do_assign_storage(0x000d0001, rn);
         if (rc)
-                goto out;
-        start = address = rn2addr(rn);
-        for (; address < start + rzm; address += PAGE_SIZE)
-                page_set_storage_key(address, PAGE_DEFAULT_KEY, 0);
-out:
-        return rc;
+                return rc;
+        start = rn2addr(rn);
+        storage_key_init_range(start, start + rzm);
+        return 0;
 }
 
 static int sclp_unassign_storage(u16 rn)