From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx166.postini.com [74.125.245.166]) by kanga.kvack.org (Postfix) with SMTP id C60766B005C for ; Sat, 9 Jun 2012 22:19:15 -0400 (EDT) Received: by dakp5 with SMTP id p5so4811198dak.14 for ; Sat, 09 Jun 2012 19:19:15 -0700 (PDT) Date: Sat, 9 Jun 2012 19:19:13 -0700 (PDT) From: David Rientjes Subject: Re: [PATCH v5] slab/mempolicy: always use local policy from interrupt context In-Reply-To: <1339234803-21106-1-git-send-email-tdmackey@twitter.com> Message-ID: References: <1338438844-5022-1-git-send-email-andi@firstfloor.org> <1339234803-21106-1-git-send-email-tdmackey@twitter.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: David Mackey Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andi Kleen , penberg@kernel.org, cl@linux.com On Sat, 9 Jun 2012, David Mackey wrote: > diff --git a/mm/mempolicy.c b/mm/mempolicy.c > index f15c1b2..cb0b230 100644 > --- a/mm/mempolicy.c > +++ b/mm/mempolicy.c > @@ -1602,8 +1602,14 @@ static unsigned interleave_nodes(struct mempolicy *policy) > * task can change it's policy. The system default policy requires no > * such protection. > */ > -unsigned slab_node(struct mempolicy *policy) > +unsigned slab_node(void) > { > + struct mempolicy *policy; > + > + if (in_interrupt()) > + return numa_node_id(); > + > + policy = current->mempolicy; > if (!policy || policy->flags & MPOL_F_LOCAL) > return numa_node_id(); > Should probably be numa_mem_id() in both these cases for CONFIG_HAVE_MEMORYLESS_NODES, but it won't cause a problem in this form either. Acked-by: David Rientjes -- 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