Subject: Fix GFP flags passed from the virtio balloon driver Date: Mon, 19 Apr 2010 19:05:39 +0530 From: Balbir Singh The virtio balloon driver can dig into the reservation pools of the OS to satisfy a balloon request. This is not advisable and other balloon drivers (drivers/xen/balloon.c) avoid this as well. The patch also adds changes to avoid printing a warning if allocation fails, since we retry after sometime anyway. Signed-off-by: Balbir Singh Signed-off-by: Rusty Russell Cc: kvm Cc: stable@kernel.org --- drivers/virtio/virtio_balloon.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 369f2ee..f8ffe8c 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -102,7 +102,8 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num) num = min(num, ARRAY_SIZE(vb->pfns)); for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) { - struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY); + struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY | + __GFP_NOMEMALLOC | __GFP_NOWARN); if (!page) { if (printk_ratelimit()) dev_printk(KERN_INFO, &vb->vdev->dev,