1 files changed, 8 insertions, 1 deletions

diff --git a/arch/ppc64/mm/hash_low.S b/arch/ppc64/mm/hash_low.S
index 8c0156a37001..c23d46956dd9 100644
--- a/arch/ppc64/mm/hash_low.S
+++ b/arch/ppc64/mm/hash_low.S
@@ -85,7 +85,10 @@ _GLOBAL(__hash_page)
         bne-    htab_wrong_access
         /* Check if PTE is busy */
         andi.   r0,r31,_PAGE_BUSY
-        bne-    1b
+        /* If so, just bail out and refault if needed. Someone else
+         * is changing this PTE anyway and might hash it.
+         */
+        bne-    bail_ok
         /* Prepare new PTE value (turn access RW into DIRTY, then
          * add BUSY,HASHPTE and ACCESSED)
          */
@@ -215,6 +218,10 @@ _GLOBAL(htab_call_hpte_remove)
         /* Try all again */
         b       htab_insert_pte 
 
+bail_ok:
+        li      r3,0
+        b       bail
+
 htab_pte_insert_ok:
         /* Insert slot number & secondary bit in PTE */
         rldimi  r30,r3,12,63-15