1 files changed, 6 insertions, 1 deletions

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index e27fbf887f3b..193350b51f90 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -334,7 +334,12 @@ int pmdp_set_access_flags(struct vm_area_struct *vma,
         if (changed && dirty) {
                 *pmdp = entry;
                 pmd_update_defer(vma->vm_mm, address, pmdp);
-                flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
+                /*
+                 * We had a write-protection fault here and changed the pmd
+                 * to to more permissive. No need to flush the TLB for that,
+                 * #PF is architecturally guaranteed to do that and in the
+                 * worst-case we'll generate a spurious fault.
+                 */
         }
 
         return changed;