1 files changed, 6 insertions, 1 deletions

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index e8122447f019..c7d7bd43a251 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -483,7 +483,12 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
                  */
                 _tlbie(address, 0 /* 8xx doesn't care about PID */);
 #endif
-                if (!PageReserved(page)
+                /* The _PAGE_USER test should really be _PAGE_EXEC, but
+                 * older glibc versions execute some code from no-exec
+                 * pages, which for now we are supporting.  If exec-only
+                 * pages are ever implemented, this will have to change.
+                 */
+                if (!PageReserved(page) && (pte_val(pte) & _PAGE_USER)
                     && !test_bit(PG_arch_1, &page->flags)) {
                         if (vma->vm_mm == current->active_mm) {
                                 __flush_dcache_icache((void *) address);