Received: by 2002:a05:7412:d8a:b0:e2:908c:2ebd with SMTP id b10csp3867490rdg; Wed, 18 Oct 2023 08:13:39 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFfdCw6SpgXg6duc6IiQ7TLwQKR9aGvqQoIXJfVLdsmPhZGrUZrLChNBM5ucf+NgewXXR+D X-Received: by 2002:a05:6a00:2389:b0:68b:eb3d:8030 with SMTP id f9-20020a056a00238900b0068beb3d8030mr6284393pfc.1.1697642019270; Wed, 18 Oct 2023 08:13:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697642019; cv=none; d=google.com; s=arc-20160816; b=G7CWopeEw0/Fgd22klpKiv4oUFwSWr6mJTZdrP0FedMMmjCwDgBujLdwfL27eTOONA XTrIfUOYVAPdb6IlMluh7swHkzNclM6vyXWTkNq8zrIXKuIpmWTW48WTJFkNfgO3PnvD +r2JZRV4y1JP7gKwAnQ/gZzVUkJiXarcjtxHiRrLz8tOQYjQepBhUSxl6aelQVG9BO6Q q59zo/vx7gJZ9aAa7GN9Gt0QH7PBNz8LO9b3CksT6OEDR6bo58z8l5SwgdTAWlUtbw/6 yyMemVG5BFJC2876hnYFhMLpAUTL+qwBfcGIcN7phh1otJgwu3vsmy8vtAhvoSkFZ4l8 a7jg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date :dkim-signature; bh=02DuBPLf8ILv8s065Qi4i5jXHM6yBMtGuS3V1tq5m+Q=; fh=Gzkq4XViazw64oKbiDJd7FznSCeNRSCJjuAJV0jclYw=; b=lZlOTyuyPIR3Upe8STYlm/18/4OFJ+LYDmSuhFOWWt/3G2zuWgR4+Fz+r7xFFPnjZW dckTNfCnyMhvEQ6PHPbNg8ckaDRIll6y54sS3he0jxXwIcmNK2IaHGRfHbSALp4KFMGu 4QOX8jqQViUJbX5gNvojSs6aergs1H43/vPyqQVpfgX4YKXTMIe/LKZZ5l0GljgNiYyM 4XezoMarl9VU+VsxEslpy0AQCWV+kn1TDkOFwhvnst99KwdTcrB/1hd+ZJrB20h9aWvC rop7VlVwaLIbPuZUj/vuW9MBJDxYfIiJgKcQB07W+sSFq81L/dbImjVYA8FqRpTV8tub xK1g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=M0QdATYk; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from groat.vger.email (groat.vger.email. [23.128.96.35]) by mx.google.com with ESMTPS id 67-20020a630246000000b00578bacd7fc7si2295987pgc.713.2023.10.18.08.13.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Oct 2023 08:13:39 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) client-ip=23.128.96.35; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=M0QdATYk; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id A0F7E80290C7; Wed, 18 Oct 2023 08:13:36 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345334AbjJRPNP (ORCPT + 99 others); Wed, 18 Oct 2023 11:13:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345355AbjJRPNM (ORCPT ); Wed, 18 Oct 2023 11:13:12 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40F6B130 for ; Wed, 18 Oct 2023 08:13:10 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25E5CC433C8; Wed, 18 Oct 2023 15:13:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1697641989; bh=gf1en1MFTQj6YIJHsRedci2J/yLMelSJ1cxQHEVixBA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=M0QdATYk2ED50MAUiZZHQPGpZl6D5AjwJDSwNTxhENMbNDzpvyX5QPH5Lv05hrVxX uN2oBcvkh9eyda1QNf5J2/NeJKqQq8BOzqtprSBqRE5z0eRG+415TYv00HYMwH8K2W re+fMBRljLDEtvMo/DZ3jno8Dh/Mlihem7KeO15opsRt6ApcbFlW06kh8w7vD08U9c OGa9ubWM8NjndwQT4kQV1RLDkQVHqS6XHOyTN2AaYKGYuKOVQ0t2xky+ktuBHkEv47 Qstpq5pMlzlQDVB2INsjCu/kfINN8YqAwZum2Ngt3AQHiSv66FTNY1fl/I/4wvx46B SGaTtML3IAvwA== Date: Thu, 19 Oct 2023 00:13:03 +0900 From: Masami Hiramatsu (Google) To: "wuqiang.matt" Cc: linux-trace-kernel@vger.kernel.org, davem@davemloft.net, anil.s.keshavamurthy@intel.com, naveen.n.rao@linux.ibm.com, rostedt@goodmis.org, peterz@infradead.org, akpm@linux-foundation.org, sander@svanheule.net, ebiggers@google.com, dan.j.williams@intel.com, jpoimboe@kernel.org, linux-kernel@vger.kernel.org, lkp@intel.com, mattwu@163.com Subject: Re: [PATCH v11 0/5] lib,kprobes: kretprobe scalability improvement Message-Id: <20231019001303.befd514dd103d334527e1754@kernel.org> In-Reply-To: <20231017135654.82270-1-wuqiang.matt@bytedance.com> References: <20231017135654.82270-1-wuqiang.matt@bytedance.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-4.5 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Wed, 18 Oct 2023 08:13:36 -0700 (PDT) Hi, On Tue, 17 Oct 2023 21:56:49 +0800 "wuqiang.matt" wrote: > This patch series introduces a scalable and lockless ring-array based > object pool to improve scalability of kretprobed routines. > > v11: > *) patchset rebased to branch probes/core of linux-trace.git > *) objpool: objpool_fini optimized for better code readability > *) test_objpool: asynchronous releasing of objpool now covered > > wuqiang.matt (5): > lib: objpool added: ring-array based lockless MPMC > lib: objpool test module added > kprobes: kretprobe scalability improvement with objpool > kprobes: freelist.h removed > MAINTAINERS: objpool added OK, this version looks good to me. Acked-by: Masami Hiramatsu (Google) I'll pick this series on for-next branch. Thank you, > > MAINTAINERS | 7 + > include/linux/freelist.h | 129 -------- > include/linux/kprobes.h | 11 +- > include/linux/objpool.h | 176 ++++++++++ > include/linux/rethook.h | 16 +- > kernel/kprobes.c | 93 +++--- > kernel/trace/fprobe.c | 32 +- > kernel/trace/rethook.c | 90 +++-- > lib/Kconfig.debug | 11 + > lib/Makefile | 4 +- > lib/objpool.c | 286 ++++++++++++++++ > lib/test_objpool.c | 689 +++++++++++++++++++++++++++++++++++++++ > 12 files changed, 1270 insertions(+), 274 deletions(-) > delete mode 100644 include/linux/freelist.h > create mode 100644 include/linux/objpool.h > create mode 100644 lib/objpool.c > create mode 100644 lib/test_objpool.c > > -- > 2.40.1 > -- Masami Hiramatsu (Google)