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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-05-14 11:04:10 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-05-16 14:42:44 +0200
commit0cd2f6201c536665d8220672dfcaf7be9da348a1 (patch)
tree79d33cada250696b5205ae0a015540fe54ca6ef9 /drivers/s390
parentd652d59682c8891bdaecfccc72b0209cbe91d89f (diff)
s390/memory hotplug: initialize storage keys
Add missing storage key initialization when memory comes online. Didn't hurt until now, since the kernel always uses access key 0. However for debugging purposes we sometimes use a different key and it might be good if everything is properly initialized... Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp_cmd.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 231a1d85127..36506366158 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -352,7 +352,17 @@ out:
static int sclp_assign_storage(u16 rn)
{
- return do_assign_storage(0x000d0001, rn);
+ unsigned long long start, address;
+ 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;
}
static int sclp_unassign_storage(u16 rn)