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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 396BFC433F5 for ; Fri, 1 Apr 2022 00:25:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243534AbiDAA05 (ORCPT ); Thu, 31 Mar 2022 20:26:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243520AbiDAA0u (ORCPT ); Thu, 31 Mar 2022 20:26:50 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9355924CED9 for ; Thu, 31 Mar 2022 17:25:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 40B8CB822B3 for ; Fri, 1 Apr 2022 00:25:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE939C340F0; Fri, 1 Apr 2022 00:24:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1648772700; bh=acq3UYZvB+nL4B8NDWmqtwF50iaTwgfYwaGKco2eaDs=; h=Date:To:From:Subject:From; b=S0O0cmOOKePesvX8SYvKSinJOKZrpUbZE0GuHl89TQU14+5Ny9o9dBKTWSV/AtCzb C58FfJXXv7GXORha5+aoEp0l2AhdpIgc0IDed41XL6H1Ob8y/9uzPJF3Jh3DnEQ0jP 9S4fX84rC3u5sF4ypUbsOjNWWI27g8MrxDDQYxoY= Date: Thu, 31 Mar 2022 17:24:59 -0700 To: mm-commits@vger.kernel.org, will@kernel.org, vincenzo.frascino@arm.com, sfr@canb.auug.org.au, samitolvanen@google.com, ryabinin.a.a@gmail.com, pcc@google.com, mark.rutland@arm.com, glider@google.com, fmayer@google.com, eugenis@google.com, elver@google.com, dvyukov@google.com, catalin.marinas@arm.com, andreyknvl@google.com, akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] kasan-use-stack_trace_save_shadow.patch removed from -mm tree Message-Id: <20220401002459.EE939C340F0@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: kasan: use stack_trace_save_shadow has been removed from the -mm tree. Its filename was kasan-use-stack_trace_save_shadow.patch This patch was dropped because an updated version will be merged ------------------------------------------------------ From: Andrey Konovalov Subject: kasan: use stack_trace_save_shadow Now that stack_trace_save_shadow() is implemented by arm64, use it whenever CONFIG_HAVE_SHADOW_STACKTRACE is enabled. This improves the boot time of a defconfig build by ~30% for all KASAN modes. Link: https://lkml.kernel.org/r/7027b9b6b0cae2921ff65739582ae499bf61470c.1648049113.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov Cc: Alexander Potapenko Cc: Andrey Ryabinin Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Evgenii Stepanov Cc: Florian Mayer Cc: Marco Elver Cc: Mark Rutland Cc: Peter Collingbourne Cc: Sami Tolvanen Cc: Vincenzo Frascino Cc: Will Deacon Signed-off-by: Andrew Morton --- mm/kasan/common.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/mm/kasan/common.c~kasan-use-stack_trace_save_shadow +++ a/mm/kasan/common.c @@ -33,10 +33,13 @@ depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc) { unsigned long entries[KASAN_STACK_DEPTH]; - unsigned int nr_entries; + unsigned int size; - nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 0); - return __stack_depot_save(entries, nr_entries, flags, can_alloc); + if (IS_ENABLED(CONFIG_HAVE_SHADOW_STACKTRACE)) + size = stack_trace_save_shadow(entries, ARRAY_SIZE(entries), 0); + else + size = stack_trace_save(entries, ARRAY_SIZE(entries), 0); + return __stack_depot_save(entries, size, flags, can_alloc); } void kasan_set_track(struct kasan_track *track, gfp_t flags) _ Patches currently in -mm which might be from andreyknvl@google.com are mm-kasan-fix-__gfp_bits_shift-definition-breaking-lockdep.patch