mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Narcisa Vasile <narcisav.kernel@gmail.com>
To: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net, edumazet@kernel.org,
	kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
	willemb@google.com, mst@redhat.com, jasowangio@gmail.com,
	eperezma@redhat.com, willemdebruijn.kernel@gmail.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH net 2/2] net: add a KUnit test for the alloc_skb_with_frags() tail split
Date: Sun, 8 Nov 2026 00:24:00 -0800	[thread overview]
Message-ID: <avAxoDhRA/qgo7oM@gmail.com> (raw)
In-Reply-To: <20261108100617.23840-3-yanhaishuang@cmss.chinamobile.com>

On Sun, Nov 08, 2026 at 07:06:17PM +0900, Haishuang Yan wrote:
> Allocate MAX_SKB_FRAGS - 2 full chunks of PAGE_ALLOC_COSTLY_ORDER plus
> a 7 page tail. Rounding the tail down to 4 + 2 + 1 pages would need
> one frag more than MAX_SKB_FRAGS, which made the allocation fail with
> -ENOBUFS before the previous patch.
> 
> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
> ---
>  net/core/net_test.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/net/core/net_test.c b/net/core/net_test.c

Thanks, I tried it locally.
Reviewed-by: Narcisa Vasile <narcisav.kernel@gmail.com>

      reply	other threads:[~2026-11-08  8:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-08 10:06 [PATCH net 0/2] net: do not run out of frags in alloc_skb_with_frags() Haishuang Yan
2026-11-08 10:06 ` [PATCH net 1/2] " Haishuang Yan
2026-11-08  8:20   ` Narcisa Vasile
2026-11-08 10:06 ` [PATCH net 2/2] net: add a KUnit test for the alloc_skb_with_frags() tail split Haishuang Yan
2026-11-08  8:24   ` Narcisa Vasile [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=avAxoDhRA/qgo7oM@gmail.com \
    --to=narcisav.kernel@gmail.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@kernel.org \
    --cc=eperezma@redhat.com \
    --cc=horms@kernel.org \
    --cc=jasowangio@gmail.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mst@redhat.com \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=willemb@google.com \
    --cc=willemdebruijn.kernel@gmail.com \
    --cc=yanhaishuang@cmss.chinamobile.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®