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 D528A16ABC5 for ; Thu, 18 Apr 2024 15:04:27 +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=1713452667; cv=none; b=c6fZFkpqcZnl00SOur31KVi991AthIN/8zR1Soc1qz6iKv8MuwV8lQnzoBkC7Bb31vbU70q12K9oqG4yWlgrq6v9ep/S9ofOYTPknzYihwS8+3YvMsIR+x/qljrkh44ZQa19U608q818ncDdVJk0boJpbZr4q3ioBrOYCYE5E88= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713452667; c=relaxed/simple; bh=i2agHyFC5ws2I+vLScJ13Xoe9wyHAl12mWNhpe2Knpg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MNXfvBMK392w3XtWw+Su2y1IgWisuA1MaicNQK2OacI0JHBx47Fj0hw+0QWs4dKFEXluCcG63VSnxLstPanATGtmo1l/vs3zBIcEqc9B61kpLDqNhegb6Zcj9oRjgzPd+rSxI0Sq+DRjHWPWyE6Arx3szOMg5ahTqQVHZp+mkjo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gt1DZM5R; 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="gt1DZM5R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68798C113CC; Thu, 18 Apr 2024 15:04:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713452667; bh=i2agHyFC5ws2I+vLScJ13Xoe9wyHAl12mWNhpe2Knpg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gt1DZM5R44ObjB35aVwZ8ZhwH0lmrzttGlcgV0XRREDy5m/H/ub7+dSssWN2oYHQj 9LVKYOqByM8UPoCkkA84DXhv11gdURBY0rS/J+XTjNLCkMmTwfEJXAyLvtFvUBescq 92nZg+b828h+qeOAj0suROioz9PqF+k2CA1VxvhrqiBc2gkRlzvJ5ANk2XQ6EvGpNZ J9/ipDNcKxHXOHI1XrrcwHCUhRn6yYyQlGELRrl6gR4dGXX66s1HnAf3iGxBDVPQ1N h3uaEk5R+KrH9hRT6tEXesvGbcy0SM76Y5woBUihuAN5FVxvX0AXi1BAhtqzdwvzIP 0ZlheTqXnlwLw== Date: Thu, 18 Apr 2024 16:04:23 +0100 From: Simon Horman To: Eric Dumazet Cc: "David S. Miller" , Jakub Kicinski , Paolo Abeni , Jamal Hadi Salim , Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= , Cong Wang , Jiri Pirko , netdev@vger.kernel.org, eric.dumazet@gmail.com Subject: Re: [PATCH v2 net-next 14/14] net_sched: sch_skbprio: implement lockless skbprio_dump() Message-ID: <20240418150423.GE3975545@kernel.org> References: <20240418073248.2952954-1-edumazet@google.com> <20240418073248.2952954-15-edumazet@google.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240418073248.2952954-15-edumazet@google.com> On Thu, Apr 18, 2024 at 07:32:48AM +0000, Eric Dumazet wrote: > Instead of relying on RTNL, skbprio_dump() can use READ_ONCE() > annotation, paired with WRITE_ONCE() one in skbprio_change(). > > Also add a READ_ONCE(sch->limit) in skbprio_enqueue(). > > Signed-off-by: Eric Dumazet Reviewed-by: Simon Horman