From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-3.mta0.migadu.com [91.218.175.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 35745534441 for ; Tue, 13 Oct 2026 18:00:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791914419; cv=none; b=EjKlyXUdcFFMjOqlAnnj+xQJtMbcly1ziEFDyroIDbfybeDEFNd4PLh6hf2AnQo8YjP9JETsXQs4QQdBuHXvxSDPmGLVPqmEha/QKD37UruaJL5l0QgX2X77KPfIGQV7A58kIYvx4eKbVA+OuM4mIfs9GCvXjpRIF8nuJO/azL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791914419; c=relaxed/simple; bh=OQsvWYYDKTSrCwcNRn+ysQf3ZrpF3PUXCq1k8vUtuag=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=RkUYn5L3+vXz5fm0os7ahqFTwknctkNVS1daQwrgkhjd/LeNsDARdiSS1C/N/Hi+SlL13XFS4NFidaZrape59D0BI1v+mmT6QuNUg8UcP8pEwVydIplXePJ4a8OSpYoHfKvY7/esOr32SvgoIzFJCCqg4FMGQ8m8fb+y28G89qc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=f7NLMx/y; arc=none smtp.client-ip=91.218.175.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="f7NLMx/y" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=OQsvWYYDKTSrCwcNRn+ysQf3ZrpF3PUXCq1k8vUtuag=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1791914416; v=1; x=1792519216; b=f7NLMx/y1tU6ZCK+KmiEHa5FcCelnrKwhGGLF7ILtzl6Kh0rnMMJvNhsBTO73L0u2FT7U6sQ eb1Yv5lbWAjCxWfY0O6cHrSzFH2Rt6m1dBoMbIAmeZ2x+RdlpFnTaRznKHEeZ6W82/Mhtu2MCj+ z3dq1/a3dRyFRSEIZACr71SA= X-Envelope-To: linux-kernel@vger.kernel.org Received: by mta11.migadu.com with ESMTPS id fbbd4bc1189eff9c; Tue, 13 Oct 2026 18:00:09 +0000 X-Mizu-Trace-ID: fbbd4bc1189eff9c X-Migadu-Flow: FLOW_OUT From: wen.yang@linux.dev To: Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt Cc: Eric Dumazet , Jesper Dangaard Brouer , Jakub Kicinski , Paolo Abeni , linux-rt-devel@list.kernel.org, linux-kernel@vger.kernel.org, "David S . Miller" , Wen Yang Subject: [PATCH 09/15] net: move skb_defer_free_flush() up Date: Wed, 14 Oct 2026 01:58:43 +0800 Message-Id: <6a189b25935eb79e0894d9e14d529f297e147e69.1791912669.git.wen.yang@linux.dev> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Eric Dumazet commit e6f50edfef046cf8ad541b4d5972bf38fdcdec39 upstream. We plan using skb_defer_free_flush() from napi_threaded_poll() in the following patch. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Wen Yang --- net/core/dev.c | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index c8789241f4a7..df7df594e7f0 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6742,6 +6742,27 @@ static int napi_thread_wait(struct napi_struct *napi) return -1; } +static void skb_defer_free_flush(struct softnet_data *sd) +{ + struct sk_buff *skb, *next; + + /* Paired with WRITE_ONCE() in skb_attempt_defer_free() */ + if (!READ_ONCE(sd->defer_list)) + return; + + spin_lock(&sd->defer_lock); + skb = sd->defer_list; + sd->defer_list = NULL; + sd->defer_count = 0; + spin_unlock(&sd->defer_lock); + + while (skb != NULL) { + next = skb->next; + napi_consume_skb(skb, 1); + skb = next; + } +} + static int napi_threaded_poll(void *data) { struct napi_struct *napi = data; @@ -6771,27 +6792,6 @@ static int napi_threaded_poll(void *data) return 0; } -static void skb_defer_free_flush(struct softnet_data *sd) -{ - struct sk_buff *skb, *next; - - /* Paired with WRITE_ONCE() in skb_attempt_defer_free() */ - if (!READ_ONCE(sd->defer_list)) - return; - - spin_lock(&sd->defer_lock); - skb = sd->defer_list; - sd->defer_list = NULL; - sd->defer_count = 0; - spin_unlock(&sd->defer_lock); - - while (skb != NULL) { - next = skb->next; - napi_consume_skb(skb, 1); - skb = next; - } -} - static __latent_entropy void net_rx_action(struct softirq_action *h) { struct softnet_data *sd = this_cpu_ptr(&softnet_data); -- 2.25.1