From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:44546 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752186AbeCHSf7 (ORCPT ); Thu, 8 Mar 2018 13:35:59 -0500 Date: Thu, 8 Mar 2018 10:35:58 -0800 From: Greg KH To: Tim Chen Cc: luto@kernel.org, akpm@linux-foundation.org, arjan@linux.intel.com, bp@alien8.de, dave.hansen@intel.com, mgorman@suse.de, mingo@kernel.org, nadav.amit@gmail.com, peterz@infradead.org, riel@redhat.com, tglx@linutronix.de, torvalds@linux-foundation.org, stable@vger.kernel.org, stable-commits@vger.kernel.org Subject: Re: Patch "x86/mm: Give each mm TLB flush generation a unique ID" has been added to the 4.9-stable tree Message-ID: <20180308183558.GA16984@kroah.com> References: <152044422213249@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: stable-owner@vger.kernel.org List-ID: On Thu, Mar 08, 2018 at 10:27:56AM -0800, Tim Chen wrote: > On 03/07/2018 09:37 AM, gregkh@linuxfoundation.org wrote: > > > > This is a note to let you know that I've just added the patch titled > > > > x86/mm: Give each mm TLB flush generation a unique ID > > > > to the 4.9-stable tree which can be found at: > > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary > > > > The filename of the patch is: > > x86-mm-give-each-mm-tlb-flush-generation-a-unique-id.patch > > and it can be found in the queue-4.9 subdirectory. > > > > If you, or anyone else, feels it should not be added to the stable tree, > > please let know about it. > > > > > > From f39681ed0f48498b80455095376f11535feea332 Mon Sep 17 00:00:00 2001 > > From: Andy Lutomirski > > Date: Thu, 29 Jun 2017 08:53:15 -0700 > > Subject: x86/mm: Give each mm TLB flush generation a unique ID > > > > From: Andy Lutomirski > > > > commit f39681ed0f48498b80455095376f11535feea332 upstream. > > > > This adds two new variables to mmu_context_t: ctx_id and tlb_gen. > > ctx_id uniquely identifies the mm_struct and will never be reused. > > For a given mm_struct (and hence ctx_id), tlb_gen is a monotonic > > Greg, I've only pulled the unique ctx_id part of the original patch and not the > tlb_gen changes. The unique ctx_id is a very simple change > without needing other related changes that tlb_gen will require. > > You may want to update the comment to reflect this. I try to keep the commit text identical, but am willing to add a note at the top or usually, the bottom of the text to show what changed in the specific stable patch. Can you give me some text that I can put there to reflect what you changed here? thanks, greg k-h