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Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/system.h2
-rw-r--r--arch/s390/kernel/traps.c1
-rw-r--r--arch/s390/mm/fault.c27
3 files changed, 15 insertions, 15 deletions
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 3ad16dbf622e..4ab2779fdb02 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -101,11 +101,9 @@ extern void account_vtime(struct task_struct *, struct task_struct *);
extern void account_tick_vtime(struct task_struct *);
#ifdef CONFIG_PFAULT
-extern void pfault_irq_init(void);
extern int pfault_init(void);
extern void pfault_fini(void);
#else /* CONFIG_PFAULT */
-#define pfault_irq_init() do { } while (0)
#define pfault_init() ({-1;})
#define pfault_fini() do { } while (0)
#endif /* CONFIG_PFAULT */
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index bc4f32fcfa57..f6342ec084a4 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -733,5 +733,4 @@ void __init trap_init(void)
pgm_check_table[0x15] = &operand_exception;
pgm_check_table[0x1C] = &space_switch_exception;
pgm_check_table[0x1D] = &hfp_sqrt_exception;
- pfault_irq_init();
}
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 839b16df72b3..dccb85d91538 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -481,8 +481,7 @@ int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write)
/*
* 'pfault' pseudo page faults routines.
*/
-static ext_int_info_t ext_int_pfault;
-static int pfault_disable = 0;
+static int pfault_disable;
static int __init nopfault(char *str)
{
@@ -594,24 +593,28 @@ static void pfault_interrupt(unsigned int ext_int_code,
}
}
-void __init pfault_irq_init(void)
+static int __init pfault_irq_init(void)
{
- if (!MACHINE_IS_VM)
- return;
+ int rc;
+ if (!MACHINE_IS_VM)
+ return 0;
/*
* Try to get pfault pseudo page faults going.
*/
- if (register_early_external_interrupt(0x2603, pfault_interrupt,
- &ext_int_pfault) != 0)
- panic("Couldn't request external interrupt 0x2603");
-
+ rc = register_external_interrupt(0x2603, pfault_interrupt);
+ if (rc) {
+ pfault_disable = 1;
+ return rc;
+ }
if (pfault_init() == 0)
- return;
+ return 0;
/* Tough luck, no pfault. */
pfault_disable = 1;
- unregister_early_external_interrupt(0x2603, pfault_interrupt,
- &ext_int_pfault);
+ unregister_external_interrupt(0x2603, pfault_interrupt);
+ return 0;
}
+early_initcall(pfault_irq_init);
+
#endif