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 C6BDCC32793 for ; Wed, 18 Jan 2023 07:54:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229831AbjARHyG (ORCPT ); Wed, 18 Jan 2023 02:54:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229740AbjARHxY (ORCPT ); Wed, 18 Jan 2023 02:53:24 -0500 Received: from out203-205-221-235.mail.qq.com (out203-205-221-235.mail.qq.com [203.205.221.235]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB9184DE31 for ; Tue, 17 Jan 2023 23:24:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foxmail.com; s=s201512; t=1674026643; bh=W3y7SXxlqmuaiDN1VFmGYREeBAf0rKvsIwCh+dZqj3c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=XSq+IGjDtS96Evu7CCeFZV/ZHBY2bZIV1tgEgqSmKGhhhV4iCgYg76laMDatiax5u 9Ka8YIgVxOW+LxxJbVyN2UI7rlFSu9FZiFb/QHZ/AK1XJvkJaG+Rq/yc6/GvJbAfsv fOht20SrDWeUB+eL7uhwFqssc8G0ziGlreqYoQuE= Received: from localhost.localdomain ([111.199.188.149]) by newxmesmtplogicsvrszb9-0.qq.com (NewEsmtp) with SMTP id 5FBA78C8; Wed, 18 Jan 2023 15:23:59 +0800 X-QQ-mid: xmsmtpt1674026639tnc9jsvaw Message-ID: X-QQ-XMAILINFO: NMGzQWUSIfvTjBzRjR6taHxYvv7EIMRdR4+2QPNbnb7dIn19MGZXo4uiQYPUUh alzSBzPRl6Lh0FXdSN88xkGYK8aWGjig/4LUyLtHcTYzshMLKw3Q9ktcQJJdcN3/9E8q7Kn10nCx 6AfRKdTIRZXKAY2GuLwcnwi+fjgi0MqhTlZmxb8H1BwxH6XOxYM2vM7cCKzY5ZaA7CWX+QKPkMN1 4v3Mnpt67LjlOT4cHqaNKz1paU4bFf88M3uNIow0pY+yx2dV04tGZcHVVJrdxLYvo/ULmLZczYAL hj7OA5vigWvIhyhRVwRRd2aVdZu54JlFBBoFZjZqPp5ouHHM0EoRPW0vSiXvIa4PpV8lQVnNO/yN jdVMh1Wttzo8n8/kwG6k6hosksf0ufRSTLFkMaoBxzhrYwIfcVK5aqdm5k/CabMH93RKqPYvs88w 9WoLsZ/6nG60o4eyTB5qg2f1IiCRhseU2HHMAI/K0ur95uzicHCvY7oKMAYqhzv0fDy1lzBHaAyD wCVlnNVmgv7LT7fyYuVI8Pkn2oRmTtkVSzOOmwudXffA96s/KzmGr51ppy1IrLWAkaZPV3cOTExn uMd8y5CXw4WBW5Lfuwq44M8eigPELAPI+7fu/bbcS0EzjclC4ryaRgOtbzaxBs05a9bHT2nHgGQM vtCg85xAulO2e3+XMS0hg6qSq9cNAC7jnZnHKAY3wilCQgN5UQDt6IToWSLXA6Jbw1I/5uDvX3md WEM9WE/mtM1h2Ko456RWqcLUELZ3y4Wg4GCWLix8swElnkaIV0kh6C1J0wwALcoljA8pzO6A8hNg 1biupjf9iAvdKICK1gEb9crSaEmDlqF/OwXONdv6kop5hd6/l4eWhacGHsd1maU7n1TVvaaZs3Rz AsTnEW7TBPV4t8S1OjYklIbfamYOcasqN5hgWcFdeInBAFyq8ZC6qqLgX0wNa2I71k2JzTUDk8ak 4MX4SXNblkju1cP7o3cNHZ/hGeV9L3L1AuL2vaFCj5DEPsTC+Xrl5X7ZSBqxST7TzFT9yplFY= From: Rong Tao To: vbabka@suse.cz Cc: 42.hyeyoo@gmail.com, akpm@linux-foundation.org, cl@linux.com, iamjoonsoo.kim@lge.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, penberg@kernel.org, rientjes@google.com, roman.gushchin@linux.dev, rongtao@cestc.cn, rtoax@foxmail.com, sdf@google.com, yhs@fb.com Subject: Re: [PATCH] mm: Functions used internally should not be put into Date: Wed, 18 Jan 2023 15:23:58 +0800 X-OQ-MSGID: <20230118072358.63932-1-rtoax@foxmail.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Vlastimil. Thank you for your reply. Indeed, BTF can eliminate the existing problem of data structure parsing. But as far as the current BCC[0] code is concerned, more surgery may be required. Now the bcc problem[1] should probably be solved by the bcc itself using BTF, and should not bother the kernel. I hope the maintenance engineers at BCC can agree with this. Thanks again. [0] https://github.com/iovisor/bcc [1] https://github.com/iovisor/bcc/issues/4438 Best wishes. Rong Tao