MIPS: Handle page faults of executable but unreadable pages correctly.

Without this we end taking execeptions in an endless loop hanging the
thread.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 36c0f26..852a41c 100644 (file)
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -133,7 +133,8 @@ good_area:
 #endif
                                goto bad_area;
                        }
-                       if (!(vma->vm_flags & VM_READ)) {
+                       if (!(vma->vm_flags & VM_READ) &&
+                           exception_epc(regs) != address) {
 #if 0
                                pr_notice("Cpu%d[%s:%d:%0*lx:%ld:%0*lx] RI violation\n",
                                          raw_smp_processor_id(),