X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmremap.c;h=5d4bd4f95b8e5ef28f269f604b61d133f341d27b;hb=c1a3313698895d8ad4760f98642007bf236af2e8;hp=7c15cf3373ad0d0e94ba6f5b74145339da0052d3;hpb=912b2539e1e062cec73e2e61448e507f7719bd08;p=pandora-kernel.git

diff --git a/mm/mremap.c b/mm/mremap.c
index 7c15cf3373ad..5d4bd4f95b8e 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -98,17 +98,18 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 	new_ptl = pte_lockptr(mm, new_pmd);
 	if (new_ptl != old_ptl)
 		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+	arch_enter_lazy_mmu_mode();
 
 	for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE,
 				   new_pte++, new_addr += PAGE_SIZE) {
 		if (pte_none(*old_pte))
 			continue;
 		pte = ptep_clear_flush(vma, old_addr, old_pte);
-		/* ZERO_PAGE can be dependant on virtual addr */
 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
 		set_pte_at(mm, new_addr, new_pte, pte);
 	}
 
+	arch_leave_lazy_mmu_mode();
 	if (new_ptl != old_ptl)
 		spin_unlock(new_ptl);
 	pte_unmap_nested(new_pte - 1);