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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>
This commit is contained in:
Heiko Carstens 2012-05-14 11:04:10 +02:00 committed by Martin Schwidefsky
parent d652d59682
commit 0cd2f6201c
1 changed files with 11 additions and 1 deletions
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12
drivers/s390/char/sclp_cmd.c
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@ -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)