From 902050bcdece6191565c055539e82c5cc534feed Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 26 May 2011 09:48:22 +0200 Subject: [S390] pfault: always enable service signal interrupt Always enable the service signal subclass mask bit in cr0, if pfault is available. That way we use the normal cpu hotplug way to propagate the subclass mask bit in cr0 instead of open coding it. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/mm/fault.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index a0f9e730f26a..e46ba2927424 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -485,7 +485,6 @@ int pfault_init(void) "2:\n" EX_TABLE(0b,1b) : "=d" (rc) : "a" (&refbk), "m" (refbk) : "cc"); - __ctl_set_bit(0, 9); return rc; } @@ -500,7 +499,6 @@ void pfault_fini(void) if (!MACHINE_IS_VM || pfault_disable) return; - __ctl_clear_bit(0,9); asm volatile( " diag %0,0,0x258\n" "0:\n" @@ -615,6 +613,7 @@ static int __init pfault_irq_init(void) rc = pfault_init() == 0 ? 0 : -EOPNOTSUPP; if (rc) goto out_pfault; + ctl_set_bit(0, 9); hotcpu_notifier(pfault_cpu_notify, 0); return 0; -- cgit v1.2.3