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From: patchwork-bot+netdevbpf@kernel.org
To: Breno Leitao <leitao@debian.org>
Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, leit@meta.com, clm@fb.com,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next] net: skbuff: Skip early return in skb_unref when debugging
Date: Thu, 01 Aug 2024 09:30:37 +0000	[thread overview]
Message-ID: <172250463706.8059.2016437225391729013.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20240729104741.370327-1-leitao@debian.org>

Hello:

This patch was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Mon, 29 Jul 2024 03:47:40 -0700 you wrote:
> This patch modifies the skb_unref function to skip the early return
> optimization when CONFIG_DEBUG_NET is enabled. The change ensures that
> the reference count decrement always occurs in debug builds, allowing
> for more thorough checking of SKB reference counting.
> 
> Previously, when the SKB's reference count was 1 and CONFIG_DEBUG_NET
> was not set, the function would return early after a memory barrier
> (smp_rmb()) without decrementing the reference count. This optimization
> assumes it's safe to proceed with freeing the SKB without the overhead
> of an atomic decrement from 1 to 0.
> 
> [...]

Here is the summary with links:
  - [net-next] net: skbuff: Skip early return in skb_unref when debugging
    https://git.kernel.org/netdev/net-next/c/c9c0ee5f20c5

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2024-08-01  9:30 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-29 10:47 [PATCH net-next] net: skbuff: Skip early return in skb_unref when debugging Breno Leitao
2024-07-30  9:38 ` Paolo Abeni
2024-07-30 10:24   ` Breno Leitao
2024-07-30 10:50   ` Florian Westphal
2024-07-30 11:15     ` Paolo Abeni
2024-07-30 14:10       ` Jakub Kicinski
2024-07-30 14:21         ` Eric Dumazet
2024-07-30 14:37         ` Paolo Abeni
2024-07-30 14:48           ` Jakub Kicinski
2024-07-31 11:24   ` Breno Leitao
2024-07-31 11:53     ` Jason Xing
2024-08-01  9:07     ` Paolo Abeni
2024-08-01  9:30 ` patchwork-bot+netdevbpf [this message]

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