linux-kernel - Re: [PATCH v1 11/29] virtio-mem: use "unsigned long" for nr

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Date:   Thu, 15 Oct 2020 22:31:02 +0200
From:   Pankaj Gupta <pankaj.gupta.linux@...il.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, Linux MM <linux-mm@...ck.org>,
        virtualization@...ts.linux-foundation.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>
Subject: Re: [PATCH v1 11/29] virtio-mem: use "unsigned long" for nr_pages
 when fake onlining/offlining

> No harm done, but let's be consistent.
>
> Cc: "Michael S. Tsirkin" <mst@...hat.com>
> Cc: Jason Wang <jasowang@...hat.com>
> Cc: Pankaj Gupta <pankaj.gupta.linux@...il.com>
> Signed-off-by: David Hildenbrand <david@...hat.com>
> ---
>  drivers/virtio/virtio_mem.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
> index cb2e8f254650..00d1cfca4713 100644
> --- a/drivers/virtio/virtio_mem.c
> +++ b/drivers/virtio/virtio_mem.c
> @@ -766,7 +766,7 @@ static int virtio_mem_memory_notifier_cb(struct notifier_block *nb,
>   * (via generic_online_page()) using PageDirty().
>   */
>  static void virtio_mem_set_fake_offline(unsigned long pfn,
> -                                       unsigned int nr_pages, bool onlined)
> +                                       unsigned long nr_pages, bool onlined)
>  {
>         for (; nr_pages--; pfn++) {
>                 struct page *page = pfn_to_page(pfn);
> @@ -785,7 +785,7 @@ static void virtio_mem_set_fake_offline(unsigned long pfn,
>   * (via generic_online_page()), clear PageDirty().
>   */
>  static void virtio_mem_clear_fake_offline(unsigned long pfn,
> -                                         unsigned int nr_pages, bool onlined)
> +                                         unsigned long nr_pages, bool onlined)
>  {
>         for (; nr_pages--; pfn++) {
>                 struct page *page = pfn_to_page(pfn);
> @@ -800,10 +800,10 @@ static void virtio_mem_clear_fake_offline(unsigned long pfn,
>   * Release a range of fake-offline pages to the buddy, effectively
>   * fake-onlining them.
>   */
> -static void virtio_mem_fake_online(unsigned long pfn, unsigned int nr_pages)
> +static void virtio_mem_fake_online(unsigned long pfn, unsigned long nr_pages)
>  {
>         const unsigned long max_nr_pages = MAX_ORDER_NR_PAGES;
> -       int i;
> +       unsigned long i;
>
>         /*
>          * We are always called at least with MAX_ORDER_NR_PAGES

Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@...il.com>