From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: + lib-stackdepot-export-save-fetch-stack-for-drivers.patch added to -mm tree Date: Tue, 08 Nov 2016 14:33:23 -0800 Message-ID: <582252b3.hsda8bqKPlVi0Tiw%akpm@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48294 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752650AbcKHWdY (ORCPT ); Tue, 8 Nov 2016 17:33:24 -0500 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: chris@chris-wilson.co.uk, aryabinin@virtuozzo.com, daniel.vetter@ffwll.ch, dvyukov@google.com, glider@google.com, iamjoonsoo.kim@lge.com, kirill@shutemov.name, mm-commits@vger.kernel.org The patch titled Subject: lib/stackdepot: export save/fetch stack for drivers has been added to the -mm tree. Its filename is lib-stackdepot-export-save-fetch-stack-for-drivers.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/lib-stackdepot-export-save-fetch-stack-for-drivers.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/lib-stackdepot-export-save-fetch-stack-for-drivers.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Chris Wilson Subject: lib/stackdepot: export save/fetch stack for drivers Some drivers would like to record stacktraces in order to aide leak tracing. As stackdepot already provides a facility for only storing the unique traces, thereby reducing the memory required, export that functionality for use by drivers. The code was originally created for KASAN and moved under lib in commit cd11016e5f521 ("mm, kasan: stackdepot implementation. Enable stackdepot for SLAB") so that it could be shared with mm/. In turn, we want to share it now with drivers. Link: http://lkml.kernel.org/r/20161108133209.22704-1-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson Cc: Andrey Ryabinin Cc: Alexander Potapenko Cc: Dmitry Vyukov Cc: Joonsoo Kim Cc: "Kirill A. Shutemov" Cc: Daniel Vetter Signed-off-by: Andrew Morton --- lib/stackdepot.c | 2 ++ 1 file changed, 2 insertions(+) diff -puN lib/stackdepot.c~lib-stackdepot-export-save-fetch-stack-for-drivers lib/stackdepot.c --- a/lib/stackdepot.c~lib-stackdepot-export-save-fetch-stack-for-drivers +++ a/lib/stackdepot.c @@ -192,6 +192,7 @@ void depot_fetch_stack(depot_stack_handl trace->entries = stack->entries; trace->skip = 0; } +EXPORT_SYMBOL_GPL(depot_fetch_stack); /** * depot_save_stack - save stack in a stack depot. @@ -283,3 +284,4 @@ exit: fast_exit: return retval; } +EXPORT_SYMBOL_GPL(depot_save_stack); _ Patches currently in -mm which might be from chris@chris-wilson.co.uk are lib-stackdepot-export-save-fetch-stack-for-drivers.patch