On Thu, Aug 26, 2021 at 10:51 AM Yunsheng Lin <linyunsheng@xxxxxxxxxx> wrote:
>
> Both SKB_FRAG_PAGE_ORDER are defined to the same value in
> net/core/sock.c and drivers/vhost/net.c.
>
> Move the SKB_FRAG_PAGE_ORDER definition to net/core/sock.h,
> as both net/core/sock.c and drivers/vhost/net.c include it,
> and it seems a reasonable file to put the macro.
>
> Signed-off-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
> ---
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
> drivers/vhost/net.c | 2 --
> include/net/sock.h | 1 +
> net/core/sock.c | 1 -
> 3 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index 6414bd5..3a249ee 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -643,8 +643,6 @@ static bool tx_can_batch(struct vhost_virtqueue *vq, size_t total_len)
> !vhost_vq_avail_empty(vq->dev, vq);
> }
>
> -#define SKB_FRAG_PAGE_ORDER get_order(32768)
> -
> static bool vhost_net_page_frag_refill(struct vhost_net *net, unsigned int sz,
> struct page_frag *pfrag, gfp_t gfp)
> {
> diff --git a/include/net/sock.h b/include/net/sock.h
> index 95b2577..66a9a90 100644
> --- a/include/net/sock.h
> +++ b/include/net/sock.h
> @@ -2717,6 +2717,7 @@ extern int sysctl_optmem_max;
> extern __u32 sysctl_wmem_default;
> extern __u32 sysctl_rmem_default;
>
> +#define SKB_FRAG_PAGE_ORDER get_order(32768)
> DECLARE_STATIC_KEY_FALSE(net_high_order_alloc_disable_key);
>
> static inline int sk_get_wmem0(const struct sock *sk, const struct proto *proto)
> diff --git a/net/core/sock.c b/net/core/sock.c
> index 950f1e7..62627e8 100644
> --- a/net/core/sock.c
> +++ b/net/core/sock.c
> @@ -2574,7 +2574,6 @@ static void sk_leave_memory_pressure(struct sock *sk)
> }
> }
>
> -#define SKB_FRAG_PAGE_ORDER get_order(32768)
> DEFINE_STATIC_KEY_FALSE(net_high_order_alloc_disable_key);
>
> /**
> --
> 2.7.4
>
