From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1CD7B1A83E6; Wed, 26 Mar 2025 12:56:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742993780; cv=none; b=tofPtWGO1LIKGPtqGSH2hqI/nLad1dIEHTzz2L33ZRuMQIjeivS62t8j/cDH0DTqYZkVlcONIHTk8b0NdvgcwuBTdLZK3vpYj7idUwg7CwkLTvLsWTdl3ekrPE/H2yj7xA1ZxRD85RTCjTULyBzV5jA8f0BIUfs/QlwvnXQWJOo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742993780; c=relaxed/simple; bh=cO4nZNQoNa/bUZ2mza5TdYc3j78iCgeN30xv21F2Nso=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=oJGA+rjlADYYcQ5kxoSi9zBtkBd7ehPoicauSFabkoN7JPYcHjxXkwEBClL6WABpuf+dU7Z2vCnryGHzsEgJwMYJ2ybg3nevNp+HDysHw+qIxVqnIm86Nw+5/wJFqc9F89xvZoY/pzzO8GFqTpEkqYe3D+dQyqJh1UacibFBGuc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Q6fWq3FU; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Q6fWq3FU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 49D06C4CEE2; Wed, 26 Mar 2025 12:56:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742993779; bh=cO4nZNQoNa/bUZ2mza5TdYc3j78iCgeN30xv21F2Nso=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Q6fWq3FUgKyjvdwSr3GbZa+6/cZKlW8P4BD4O+MWeT/vCWMNA2k28M0rQ2QSzyVQA ofYUH0P3RI6pv6InL7NDx5sd0z2Ox/IGtlQMa5BW2L5xE23uKthYtxBBLC0GQag9Ce YhgvJybn2t8ctkzJV0ZvwSTZeNQU41W7f1EP8N/Hg/FG15M2OIDgl3seZigVQhnQSU y+qGD48pUhT7nRZYcTJqjXM6HnNlZXZo0NZufKaWkcY/5ODBIEjbycIZYrB7F30C00 lOpPzN8/zrlp1FJuhdzVHPOchL16TrsbLLo3KnLDadVYM7N9yTGblQ9an2QLePRYt6 ULPePySGJydeA== Message-ID: <072fc1a0-096a-4448-bf09-e3dc0f804b17@kernel.org> Date: Wed, 26 Mar 2025 13:56:13 +0100 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v3 2/3] page_pool: Turn dma_sync into a full-width bool field To: =?UTF-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , "David S. Miller" , Jakub Kicinski , Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Andrew Lunn , Eric Dumazet , Paolo Abeni , Ilias Apalodimas , Simon Horman , Andrew Morton , Mina Almasry , Yonglong Liu , Yunsheng Lin , Pavel Begunkov , Matthew Wilcox Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-rdma@vger.kernel.org, linux-mm@kvack.org References: <20250326-page-pool-track-dma-v3-0-8e464016e0ac@redhat.com> <20250326-page-pool-track-dma-v3-2-8e464016e0ac@redhat.com> Content-Language: en-US From: Jesper Dangaard Brouer In-Reply-To: <20250326-page-pool-track-dma-v3-2-8e464016e0ac@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 26/03/2025 09.18, Toke Høiland-Jørgensen wrote: > Change the single-bit boolean for dma_sync into a full-width bool, so we > can read it as volatile with READ_ONCE(). A subsequent patch will add > writing with WRITE_ONCE() on teardown. > > Reviewed-by: Mina Almasry > Tested-by: Yonglong Liu > Signed-off-by: Toke Høiland-Jørgensen > --- > include/net/page_pool/types.h | 6 +++--- > net/core/page_pool.c | 2 +- > 2 files changed, 4 insertions(+), 4 deletions(-) LGTM Acked-by: Jesper Dangaard Brouer