On Mon, Dec 11, 2017 at 02:11:55PM -0800, David Rientjes wrote: > --- a/drivers/misc/sgi-gru/grutlbpurge.c > +++ b/drivers/misc/sgi-gru/grutlbpurge.c > @@ -298,6 +298,7 @@ struct gru_mm_struct *gru_register_mmu_notifier(void) > return ERR_PTR(-ENOMEM); > STAT(gms_alloc); > spin_lock_init(&gms->ms_asid_lock); > + gms->ms_notifier.flags = 0; > gms->ms_notifier.ops = &gru_mmuops; > atomic_set(&gms->ms_refcnt, 1); > init_waitqueue_head(&gms->ms_wait_queue); > diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c There is a kzalloc() just above this: gms = kzalloc(sizeof(*gms), GFP_KERNEL); Is that not sufficient to clear the 'flags' field? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>