diff options
| -rw-r--r-- | kernel/events/ring_buffer.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index c8aa3f75bc4d..182bc30899d5 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -437,7 +437,10 @@ static struct page *rb_alloc_aux_page(int node, int order) if (page && order) { /* - * Communicate the allocation size to the driver + * Communicate the allocation size to the driver: + * if we managed to secure a high-order allocation, + * set its first page's private to this order; + * !PagePrivate(page) means it's just a normal page. */ split_page(page, order); SetPagePrivate(page); |