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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D5625D711BF for ; Wed, 20 Nov 2024 16:07:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=m+z3iZINUl/nDCl5+dCp6FwlK8hB2wAiYZgCAxfQitM=; b=QF7Cqt2kzhT/5/TvW1Fo8xQVoP yLJNx7htbu+2+n7O304zPXl6K1LkRYFUfrmwNzCCuyh1tg9rzWY/u4UOUeVNQIJGtG4/yowxzo0Ar bvDn3E1lxkQ366w/ZvdfRLCF35wUQM+7YskAArg2/+3OTJ2X/7gDCqwqELIu8pGMjgSKOqo6xe70j nFtAZ/UkSIqbfiB3Gz/659UcJ2MUhS/pOHkUFbFgBN9NIiIwhfFwFcWbAZwxJNNsweEJcnwi5fdFR qijJrDlFrI2aNulLfy7CyINUmPu6yMDnIwdzsM5hjLFUNGjynGT5YCoJDAtQsJ/04ZssUMZ94/mmm KEs889Og==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tDnEr-0000000Fm93-10tC; Wed, 20 Nov 2024 16:07:33 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tDnAr-0000000FlIv-2LfH for linux-arm-kernel@lists.infradead.org; Wed, 20 Nov 2024 16:03:26 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 114165C5D83; Wed, 20 Nov 2024 16:02:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA3DCC4CECD; Wed, 20 Nov 2024 16:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732118604; bh=l9At4QAU1UWOdiHd0AM/zaIAhJIXZNKutllsFxhd04c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=aBRUWNLHRfZeQXMu7YAN3oI6Uslc8DdiOozdXsGOLr5vSQVyQBykU8uvU1q668mLY TMtblbKYRnL24mIoJatHJ2AZiGKghQBFG/eTgfk4sIjgVRqe8TfyJ/xk2vwnX1WnHA wLA6aGH16h/F9Bis7foCon/OkCF9RPqyCsY9TCjStwVdBSUbWembvOCPmjIF4GOvVj tvbF11Dc4XbXwkRf0KNuvjtSsjT634wGzdQ1R5MtHwraGXLVV/LWT0FSyqQ25APhJs coRzeI/IFJZzzvtDkp8ZglyDCN+ym0jqz5AWZqyiCK8smJvW+qPsrJTsUl1y8VlJI2 +dPiw54jhcWWQ== Date: Wed, 20 Nov 2024 17:03:13 +0100 From: Ingo Molnar To: Peter Zijlstra Cc: Andrii Nakryiko , Linus Torvalds , linux-trace-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, oleg@redhat.com, rostedt@goodmis.org, mhiramat@kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, jolsa@kernel.org, paulmck@kernel.org, willy@infradead.org, surenb@google.com, mjguzik@gmail.com, brauner@kernel.org, jannh@google.com, mhocko@kernel.org, Andrii Nakryiko , vbabka@suse.cz, shakeel.butt@linux.dev, hannes@cmpxchg.org, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, david@redhat.com, arnd@arndb.de, richard.weiyang@gmail.com, zhangpeng.00@bytedance.com, linmiaohe@huawei.com, viro@zeniv.linux.org.uk, hca@linux.ibm.com, Mark Rutland , Will Deacon , linux-arm-kernel , Catalin Marinas , Kernel Team Subject: Re: [PATCH v4 tip/perf/core 0/4] uprobes,mm: speculative lockless VMA-to-uprobe lookup Message-ID: References: <20241028010818.2487581-1-andrii@kernel.org> <20241120154323.GA24774@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241120154323.GA24774@noisy.programming.kicks-ass.net> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241120_080325_639031_DE3881A0 X-CRM114-Status: GOOD ( 15.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org * Peter Zijlstra wrote: > On Wed, Nov 20, 2024 at 07:40:15AM -0800, Andrii Nakryiko wrote: > > Linus, > > > > I'm not sure what's going on here, this patch set seems to be in some > > sort of "ignore list" on Peter's side with no indication on its > > destiny. > > *sigh* it is not, but my inbox is like drinking from a firehose :/ And I've been considering that particular series WIP for two reasons: 1) Oleg was still unconvinced about patch 5/5 in the v2 discussion. Upon re-reading it I think he might have come around and has agreed to the current approach - but sending a v3 & not seeing Oleg object would ascertain that. 2) There was a build failure reported against -v2 at: https://lore.kernel.org/all/202410050745.2Nuvusy4-lkp@intel.com/t.mbox.gz We cannot and will not merge patches with build failures. Andrii did get some other uprobes scalability work merged in v6.13: - Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko) - Massively increase uretprobe SMP scalability by SRCU-protecting the uretprobe lifetime (Andrii Nakryiko) So we've certainly not been ignoring his patches, to the contrary ... Thanks, Ingo