From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FBE0C433FE for ; Thu, 20 Oct 2022 13:26:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231286AbiJTN0f (ORCPT ); Thu, 20 Oct 2022 09:26:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231229AbiJTN0Y (ORCPT ); Thu, 20 Oct 2022 09:26:24 -0400 Received: from mail1.bemta32.messagelabs.com (mail1.bemta32.messagelabs.com [195.245.230.2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4485147D2A for ; Thu, 20 Oct 2022 06:25:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fujitsu.com; s=170520fj; t=1666272358; i=@fujitsu.com; bh=AihSczzb2cz6quFpq7zcAAd1UwgKnREU/NNA/HyB5S4=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type:Content-Transfer-Encoding; b=pflol9zzskUngDp6/EXi5v7PflozJ7xIy3xLt0Z+x+1U8I8tXrfOYsr0/HMIXeDD3 3faZ7XR6wM6PPN4cM/8voRGqazxG4KVjJbTRC2x0VUPL2BH9eOn7FEXgqcYZhVo3S/ OauQ+8bPJm9CZKONlHq/ACu9o1iKIza3HHNfw2fxDTEwshTajOfuPYLANKV1Sswe5y SH8Da2n4yTGPClqKT9troB+3ZH/+1+LqxXgW+9lO/n62AEv8Hq6cW4XnNY2nQFPztV oAckeBgN0WxB8Nh61Os/WwVROdPee9tMqnVX4NlV/lyh9zjRmj8HALyfNK0Eduvf7L +093vFqv+zsLA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpileJIrShJLcpLzFFi42Kxs+HYrJviE5h ssOqduMWVf3sYLab8Wsps8exQL4vFl6nTmC3OH+tnd2D12DnrLrvHplWdbB69ze/YPD5vkgtg iWLNzEvKr0hgzVj1/x5bwQ7miln3OlgaGO8wdTFycQgJbGCUWP7iLAuEs5hJ4u2GN2wQzjZGi TsvzwI5nBy8AnYSP5ZvYwWxWQRUJdb/bGOGiAtKnJz5hAXEFhVIkri64S5YjbBAoMS1WTPAbB EBFYkTJ86wgwxlFvjGKDH9/nR2iA3XGSUOT+wHm8Qm4Cgxb9ZGsG2cAloS/d+vgtnMAhYSi98 cZIew5SW2v50DVi8hoCjRtuQfO4RdITFrVhsThK0mcfXcJuYJjEKzkBw4C8moWUhGLWBkXsVo WpxaVJZapGuol1SUmZ5RkpuYmaOXWKWbqJdaqlueWlwClEksL9ZLLS7WK67MTc5J0ctLLdnEC IyalGJ21h2ML5b80TvEKMnBpCTKK6wamCzEl5SfUpmRWJwRX1Sak1p8iFGGg0NJgveFB1BOsC g1PbUiLTMHGMEwaQkOHiURXmZnoDRvcUFibnFmOkTqFKOilDivpjtQQgAkkVGaB9cGSxqXGGW lhHkZGRgYhHgKUotyM0tQ5V8xinMwKgnzzvAEmsKTmVcCN/0V0GImoMWmW/xAFpckIqSkGpi8 FJ92S4nlmUw/aljQv/6oRlRhucinv7M0NlUt27O65UT7seKU17EJ2xmrZvz6yux20GG7mpZ8E K9nmpm17bq1J5/+e/thp6HS+bZ1ecsPv3sfl2a48Rg3w7ZdIcdMss9qxhdn6NwpqvZ5KPmsyZ GZ+Xhe43O2b6mSH0QfPpD9Gd4kwPD9676/704mFMvdFk17dPSx5cnd02+lOIt+Wv1wyTI1c+E 2Rkc3jZLHUpP6JO54ebx1unNh8yJFc/9Tqg9XtZ1k8Hpx2fz6sVXp5x4t2K2cyTph/aZdzxtF RO+yKVjOmRw7oblIikPia4fVqa+PpdfYM0zb8PK700/3KaaLmFheHhbYf27LEV4Wq1n7lFiKM xINtZiLihMBBqFI3JUDAAA= X-Env-Sender: yangx.jy@fujitsu.com X-Msg-Ref: server-19.tower-591.messagelabs.com!1666272356!74864!1 X-Originating-IP: [62.60.8.179] X-SYMC-ESS-Client-Auth: outbound-route-from=pass X-StarScan-Received: X-StarScan-Version: 9.100.1; banners=-,-,- X-VirusChecked: Checked Received: (qmail 15095 invoked from network); 20 Oct 2022 13:25:56 -0000 Received: from unknown (HELO n03ukasimr04.n03.fujitsu.local) (62.60.8.179) by server-19.tower-591.messagelabs.com with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 20 Oct 2022 13:25:56 -0000 Received: from n03ukasimr04.n03.fujitsu.local (localhost [127.0.0.1]) by n03ukasimr04.n03.fujitsu.local (Postfix) with ESMTP id ECB8F7B; Thu, 20 Oct 2022 14:25:55 +0100 (BST) Received: from R01UKEXCASM126.r01.fujitsu.local (R01UKEXCASM126 [10.183.43.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by n03ukasimr04.n03.fujitsu.local (Postfix) with ESMTPS id E007A73; Thu, 20 Oct 2022 14:25:55 +0100 (BST) Received: from [10.167.215.54] (10.167.215.54) by R01UKEXCASM126.r01.fujitsu.local (10.183.43.178) with Microsoft SMTP Server (TLS) id 15.0.1497.32; Thu, 20 Oct 2022 14:25:53 +0100 Message-ID: Date: Thu, 20 Oct 2022 21:25:46 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [RESEND PATCH v5 1/2] RDMA/rxe: Support RDMA Atomic Write operation To: Jason Gunthorpe CC: "linux-rdma@vger.kernel.org" , "leon@kernel.org" , "rpearsonhpe@gmail.com" , "zyjzyj2000@gmail.com" , "lizhijian@fujitsu.com" References: <20220708040228.6703-1-yangx.jy@fujitsu.com> <20220708040228.6703-2-yangx.jy@fujitsu.com> <6a04efb6-84e5-c7b7-25f1-843fa8122875@fujitsu.com> From: =?UTF-8?B?WWFuZywgWGlhby/mnagg5pmT?= In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.215.54] X-ClientProxiedBy: G08CNEXCHPEKD07.g08.fujitsu.local (10.167.33.80) To R01UKEXCASM126.r01.fujitsu.local (10.183.43.178) X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 2022/10/15 0:00, Jason Gunthorpe wrote: > People have been thinking of new uses for kmap, rxe still should be > calling it. Hi Jason, Thanks a lot for your reply. Could you tell me what is the new usage about kmap()? > > The above just explains why it doesn't fail today, it doesn't excuse > the wrong usage. I wonder why we need to use kmap() in this case? I'm sorry to ask the stupid question. Best Regards, Xiao Yang > > Jason