netdev - Re: [PATCH v7 bpf-next 1/7] bpf: udp: Make mem flags configurable through bpf_iter_udp_realloc

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Message-ID: <35aee73f-171c-4c64-9144-ff97afd8801c@linux.dev>
Date: Fri, 2 May 2025 14:31:28 -0700
From: Martin KaFai Lau <martin.lau@...ux.dev>
To: Jordan Rife <jordan@...fe.io>
Cc: Aditi Ghag <aditi.ghag@...valent.com>,
 Daniel Borkmann <daniel@...earbox.net>,
 Willem de Bruijn <willemdebruijn.kernel@...il.com>,
 Kuniyuki Iwashima <kuniyu@...zon.com>,
 Alexei Starovoitov <alexei.starovoitov@...il.com>, netdev@...r.kernel.org,
 bpf@...r.kernel.org
Subject: Re: [PATCH v7 bpf-next 1/7] bpf: udp: Make mem flags configurable
 through bpf_iter_udp_realloc_batch

On 5/2/25 9:15 AM, Jordan Rife wrote:
> Prepare for the next patch which needs to be able to choose either
> GFP_USER or GFP_NOWAIT for calls to bpf_iter_udp_realloc_batch.
> 
> Signed-off-by: Jordan Rife <jordan@...fe.io>
> Reviewed-by: Kuniyuki Iwashima <kuniyu@...zon.com>
> ---
>   net/ipv4/udp.c | 11 ++++++-----
>   1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
> index 2742cc7602bb..6a3c351aa06e 100644
> --- a/net/ipv4/udp.c
> +++ b/net/ipv4/udp.c
> @@ -3401,7 +3401,7 @@ struct bpf_udp_iter_state {
>   };
>   
>   static int bpf_iter_udp_realloc_batch(struct bpf_udp_iter_state *iter,
> -				      unsigned int new_batch_sz);
> +				      unsigned int new_batch_sz, int flags);

I also made a minor change from "int flags" to "gfp_t flags".