From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f198.google.com (mail-wr0-f198.google.com [209.85.128.198]) by kanga.kvack.org (Postfix) with ESMTP id 6C06B6B057B for ; Tue, 1 Aug 2017 18:29:44 -0400 (EDT) Received: by mail-wr0-f198.google.com with SMTP id l3so3851002wrc.12 for ; Tue, 01 Aug 2017 15:29:44 -0700 (PDT) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTPS id q30si20409364wra.202.2017.08.01.15.29.42 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Aug 2017 15:29:43 -0700 (PDT) Date: Tue, 1 Aug 2017 15:29:40 -0700 From: Andrew Morton Subject: Re: [PATCH v2 0/4] fix several TLB batch races Message-Id: <20170801152940.ba91066bd570ed3eadd8d2fc@linux-foundation.org> In-Reply-To: <1501566977-20293-1-git-send-email-minchan@kernel.org> References: <1501566977-20293-1-git-send-email-minchan@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Minchan Kim Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, kernel-team , Nadav Amit , Mel Gorman , Andrea Arcangeli On Tue, 1 Aug 2017 14:56:13 +0900 Minchan Kim wrote: > Nadav and Mel founded several subtle races caused by TLB batching. > This patchset aims for solving thoses problems using embedding > [inc|dec]_tlb_flush_pending to TLB batching API. > With that, places to know TLB flush pending catch it up by > using mm_tlb_flush_pending. > > Each patch includes detailed description. > > This patchset is based on v4.13-rc2-mmots-2017-07-28-16-10 + > "[PATCH v5 0/3] mm: fixes of tlb_flush_pending races" from Nadav Nadav is planning on doing a v4 of his patchset and it sounds like it will be significantly different. So I'll await that patch series. Nadav, I think it would be best if you were to integrate Minchan's patchset on top of yours and maintain the whole set as a single series, please. That way it all gets tested at the same time and you're testing the hopefully-final result. If that's OK then please retain the various acks and reviewed-bys in the changelogs. And we'll need to figure out which kernel versions to fix. Let's target 4.13-rcX for now, and assess the feasibility and desirability of backporting it all into -stable. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org