Read memory barriers must follow the read operations. Cc: edumazet@xxxxxxxxxx Cc: js1304@xxxxxxxxx Cc: iamjoonsoo.kim@xxxxxxx Cc: akpm@xxxxxxxxxxxxxxxxxxxx Cc: linux-mm@xxxxxxxxx Signed-off-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx> --- mm/vmalloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 90520af..e052a34 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2575,10 +2575,10 @@ static void show_numa_info(struct seq_file *m, struct vm_struct *v) if (!counters) return; - /* Pair with smp_wmb() in clear_vm_uninitialized_flag() */ - smp_rmb(); if (v->flags & VM_UNINITIALIZED) return; + /* Pair with smp_wmb() in clear_vm_uninitialized_flag() */ + smp_rmb(); memset(counters, 0, nr_node_ids * sizeof(unsigned int)); -- 2.2.0.rc0.207.ga3a616c -- 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>