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-rw-r--r--arch/s390/mm/fault.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 0c66b32e0f..c848966ed1 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -325,7 +325,8 @@ static void do_exception(struct pt_regs *regs, int access)
goto lock_mmap;
if (!(vma->vm_flags & access)) {
vma_end_read(vma);
- goto lock_mmap;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ return handle_fault_error_nolock(regs, SEGV_ACCERR);
}
fault = handle_mm_fault(vma, address, flags | FAULT_FLAG_VMA_LOCK, regs);
if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))
@@ -432,12 +433,13 @@ error:
handle_fault_error_nolock(regs, 0);
else
do_sigsegv(regs, SEGV_MAPERR);
- } else if (fault & VM_FAULT_SIGBUS) {
+ } else if (fault & (VM_FAULT_SIGBUS | VM_FAULT_HWPOISON)) {
if (!user_mode(regs))
handle_fault_error_nolock(regs, 0);
else
do_sigbus(regs);
} else {
+ pr_emerg("Unexpected fault flags: %08x\n", fault);
BUG();
}
}