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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CCB3C10F14 for ; Thu, 18 Apr 2019 09:09:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2BFA3206B6 for ; Thu, 18 Apr 2019 09:09:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388541AbfDRJHe (ORCPT ); Thu, 18 Apr 2019 05:07:34 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:34072 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388522AbfDRJHd (ORCPT ); Thu, 18 Apr 2019 05:07:33 -0400 Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hH2zl-0001nA-9k; Thu, 18 Apr 2019 11:06:13 +0200 Message-Id: <20190418084253.720040206@linutronix.de> User-Agent: quilt/0.65 Date: Thu, 18 Apr 2019 10:41:26 +0200 From: Thomas Gleixner To: LKML Cc: Josh Poimboeuf , x86@kernel.org, Andy Lutomirski , Steven Rostedt , Alexander Potapenko , Andrew Morton , Pekka Enberg , linux-mm@kvack.org, David Rientjes , Christoph Lameter , Alexey Dobriyan , Catalin Marinas , Dmitry Vyukov , Andrey Ryabinin , kasan-dev@googlegroups.com, Mike Rapoport , Akinobu Mita , iommu@lists.linux-foundation.org, Robin Murphy , Christoph Hellwig , Marek Szyprowski , Johannes Thumshirn , David Sterba , Chris Mason , Josef Bacik , linux-btrfs@vger.kernel.org, dm-devel@redhat.com, Mike Snitzer , Alasdair Kergon , intel-gfx@lists.freedesktop.org, Joonas Lahtinen , Maarten Lankhorst , dri-devel@lists.freedesktop.org, David Airlie , Jani Nikula , Daniel Vetter , Rodrigo Vivi , linux-arch@vger.kernel.org Subject: [patch V2 07/29] mm/slub: Simplify stack trace retrieval References: <20190418084119.056416939@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Replace the indirection through struct stack_trace with an invocation of the storage array based interface. Signed-off-by: Thomas Gleixner Cc: Andrew Morton Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Christoph Lameter --- mm/slub.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) --- a/mm/slub.c +++ b/mm/slub.c @@ -552,18 +552,14 @@ static void set_track(struct kmem_cache if (addr) { #ifdef CONFIG_STACKTRACE - struct stack_trace trace; + unsigned int nr_entries; - trace.nr_entries = 0; - trace.max_entries = TRACK_ADDRS_COUNT; - trace.entries = p->addrs; - trace.skip = 3; metadata_access_enable(); - save_stack_trace(&trace); + nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3); metadata_access_disable(); - if (trace.nr_entries < TRACK_ADDRS_COUNT) - p->addrs[trace.nr_entries] = 0; + if (nr_entries < TRACK_ADDRS_COUNT) + p->addrs[nr_entries] = 0; #endif p->addr = addr; p->cpu = smp_processor_id(); From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: [patch V2 07/29] mm/slub: Simplify stack trace retrieval Date: Thu, 18 Apr 2019 10:41:26 +0200 Message-ID: <20190418084253.720040206@linutronix.de> References: <20190418084119.056416939@linutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: LKML Cc: Mike Snitzer , David Airlie , Catalin Marinas , Joonas Lahtinen , dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, Alexander Potapenko , Christoph Lameter , Christoph Hellwig , Alasdair Kergon , linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, kasan-dev-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Johannes Thumshirn , Andrey Ryabinin , Alexey Dobriyan , intel-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, David Rientjes , Maarten Lankhorst , Akinobu Mita , Steven Rostedt , Josef Bacik , Rodrigo Vivi , Mike Rapoport List-Id: linux-arch.vger.kernel.org Replace the indirection through struct stack_trace with an invocation of the storage array based interface. Signed-off-by: Thomas Gleixner Cc: Andrew Morton Cc: Pekka Enberg Cc: linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org Cc: David Rientjes Cc: Christoph Lameter --- mm/slub.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) --- a/mm/slub.c +++ b/mm/slub.c @@ -552,18 +552,14 @@ static void set_track(struct kmem_cache if (addr) { #ifdef CONFIG_STACKTRACE - struct stack_trace trace; + unsigned int nr_entries; - trace.nr_entries = 0; - trace.max_entries = TRACK_ADDRS_COUNT; - trace.entries = p->addrs; - trace.skip = 3; metadata_access_enable(); - save_stack_trace(&trace); + nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3); metadata_access_disable(); - if (trace.nr_entries < TRACK_ADDRS_COUNT) - p->addrs[trace.nr_entries] = 0; + if (nr_entries < TRACK_ADDRS_COUNT) + p->addrs[nr_entries] = 0; #endif p->addr = addr; p->cpu = smp_processor_id(); 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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA62EC10F0E for ; Thu, 18 Apr 2019 09:07:13 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CA4332183E for ; Thu, 18 Apr 2019 09:07:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA4332183E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 3559014E7; Thu, 18 Apr 2019 09:06:35 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 00AFA14A3 for ; Thu, 18 Apr 2019 09:06:35 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from Galois.linutronix.de (Galois.linutronix.de [146.0.238.70]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 4767C85B for ; Thu, 18 Apr 2019 09:06:31 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hH2zl-0001nA-9k; Thu, 18 Apr 2019 11:06:13 +0200 Message-Id: <20190418084253.720040206@linutronix.de> User-Agent: quilt/0.65 Date: Thu, 18 Apr 2019 10:41:26 +0200 From: Thomas Gleixner To: LKML Subject: [patch V2 07/29] mm/slub: Simplify stack trace retrieval References: <20190418084119.056416939@linutronix.de> MIME-Version: 1.0 Cc: Mike Snitzer , David Airlie , Catalin Marinas , Joonas Lahtinen , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, dm-devel@redhat.com, Alexander Potapenko , Christoph Lameter , Christoph Hellwig , Alasdair Kergon , linux-arch@vger.kernel.org, x86@kernel.org, kasan-dev@googlegroups.com, Johannes Thumshirn , Andrey Ryabinin , Alexey Dobriyan , intel-gfx@lists.freedesktop.org, David Rientjes , Maarten Lankhorst , Akinobu Mita , Steven Rostedt , Josef Bacik , Rodrigo Vivi , Mike Rapoport , Jani Nikula , Andy Lutomirski , Josh Poimboeuf , David Sterba , Dmitry Vyukov , Chris Mason , Pekka Enberg , iommu@lists.linux-foundation.org, Daniel Vetter , Andrew Morton , Robin Murphy , linux-btrfs@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Message-ID: <20190418084126.KC7ZOW9kRv995QlTrM-p63F7T3eUD8nIREMp4teqILI@z> Replace the indirection through struct stack_trace with an invocation of the storage array based interface. Signed-off-by: Thomas Gleixner Cc: Andrew Morton Cc: Pekka Enberg Cc: linux-mm@kvack.org Cc: David Rientjes Cc: Christoph Lameter --- mm/slub.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) --- a/mm/slub.c +++ b/mm/slub.c @@ -552,18 +552,14 @@ static void set_track(struct kmem_cache if (addr) { #ifdef CONFIG_STACKTRACE - struct stack_trace trace; + unsigned int nr_entries; - trace.nr_entries = 0; - trace.max_entries = TRACK_ADDRS_COUNT; - trace.entries = p->addrs; - trace.skip = 3; metadata_access_enable(); - save_stack_trace(&trace); + nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3); metadata_access_disable(); - if (trace.nr_entries < TRACK_ADDRS_COUNT) - p->addrs[trace.nr_entries] = 0; + if (nr_entries < TRACK_ADDRS_COUNT) + p->addrs[nr_entries] = 0; #endif p->addr = addr; p->cpu = smp_processor_id(); _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu