diff options
Diffstat (limited to 'arch/openrisc/mm/fault.c')
| -rw-r--r-- | arch/openrisc/mm/fault.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c index b4762d66e9ef..29e232d78d82 100644 --- a/arch/openrisc/mm/fault.c +++ b/arch/openrisc/mm/fault.c @@ -18,6 +18,7 @@ #include <linux/perf_event.h> #include <linux/uaccess.h> +#include <asm/bug.h> #include <asm/mmu_context.h> #include <asm/siginfo.h> #include <asm/signal.h> @@ -30,7 +31,8 @@ */ volatile pgd_t *current_pgd[NR_CPUS]; -extern void __noreturn die(char *, struct pt_regs *, long); +asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long address, + unsigned long vector, int write_acc); /* * This routine handles page faults. It determines the address, @@ -127,8 +129,9 @@ retry: if (address + PAGE_SIZE < regs->sp) goto bad_area; } - if (expand_stack(vma, address)) - goto bad_area; + vma = expand_stack(mm, address); + if (!vma) + goto bad_area_nosemaphore; /* * Ok, we have a good vm_area for this memory access, so @@ -162,8 +165,11 @@ good_area: fault = handle_mm_fault(vma, address, flags, regs); - if (fault_signal_pending(fault, regs)) + if (fault_signal_pending(fault, regs)) { + if (!user_mode(regs)) + goto no_context; return; + } /* The fault is fully completed (including releasing mmap lock) */ if (fault & VM_FAULT_COMPLETED) |