AcoSail/kernel_optimize_test
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s390/memory hotplug: initialize storage keys

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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 @@ static int do_assign_storage(sclp_cmdw_t cmd, u16 rn)
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)