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-rw-r--r--arch/s390/mm/fault.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 91ce03fd0c84..df75d574246d 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -83,7 +83,6 @@ static inline int notify_page_fault(struct pt_regs *regs)
/*
* Find out which address space caused the exception.
- * Access register mode is impossible, ignore space == 3.
*/
static enum fault_type get_fault_type(struct pt_regs *regs)
{
@@ -108,6 +107,10 @@ static enum fault_type get_fault_type(struct pt_regs *regs)
}
return VDSO_FAULT;
}
+ if (trans_exc_code == 1) {
+ /* access register mode, not used in the kernel */
+ return USER_FAULT;
+ }
/* home space exception -> access via kernel ASCE */
return KERNEL_FAULT;
}