From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761281Ab2EJVWI (ORCPT ); Thu, 10 May 2012 17:22:08 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:64696 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758956Ab2EJVWF (ORCPT ); Thu, 10 May 2012 17:22:05 -0400 Date: Thu, 10 May 2012 14:21:58 -0700 From: Tejun Heo To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Christoph Lameter , "Pavel V. Panteleev" , Catalin Marinas Subject: [GIT PULL] percpu fixes for 3.4-rc6 Message-ID: <20120510212158.GH24636@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Linus. This pull request contains two patches. One is kmemleak annotation fix which isn't critical. The other is kinda serious. Depending on NUMA topology, percpu allocator may end up assigning overlapping regions for the static percpu areas for different CPUs. While critical, the bug has been there for a very long time and only few configurations seem to be affected (NUMA configurations w/ no memory nodes for example) - so, while it's critical, it isn't exactly urgent. If there isn't gonna be another rcX, I think it would be better to pull the fix as part of the next merge window and backport through -stable. So, depending on release schedule, please consider pulling from the following branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git for-3.4-fixes Catalin Marinas (1): kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP Tejun Heo (1): percpu: pcpu_embed_first_chunk() should free unused parts after all allocs are complete mm/percpu.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) Thanks. -- tejun