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 5E42EC433EF for ; Fri, 25 Mar 2022 22:42:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233957AbiCYWoU (ORCPT ); Fri, 25 Mar 2022 18:44:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233956AbiCYWn4 (ORCPT ); Fri, 25 Mar 2022 18:43:56 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 261F020A948 for ; Fri, 25 Mar 2022 15:42:06 -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 BD9F5B82A32 for ; Fri, 25 Mar 2022 22:42:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70121C340ED; Fri, 25 Mar 2022 22:42:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1648248123; bh=nVzIBqavv2GoTW2ujib3pGHhVMdqAi5P4Az2cJ5Bi4M=; h=Date:To:From:Subject:From; b=X6xGz9hcoISb18fC+6Rer9+Aj/xuDjzuL7EethckGWJlgnqACPjiIbQJ6PbXuAA6h 6nbMJgTVMsunWtI1eDB4Kv0Dgw4tUPKtXKsgVdQBqA9Mh+txDWYtaEByYJkRZaZgWS AyRUd+b5Gyg16nB/5aXLnJn2+vG5hhtwC3k3hEXY= Date: Fri, 25 Mar 2022 15:42:02 -0700 To: mm-commits@vger.kernel.org, will@kernel.org, vincenzo.frascino@arm.com, ryabinin.a.a@gmail.com, pcc@google.com, mark.rutland@arm.com, glider@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: [merged] kasan-page_alloc-refactor-init-checks-in-post_alloc_hook.patch removed from -mm tree Message-Id: <20220325224203.70121C340ED@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, page_alloc: refactor init checks in post_alloc_hook has been removed from the -mm tree. Its filename was kasan-page_alloc-refactor-init-checks-in-post_alloc_hook.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Andrey Konovalov Subject: kasan, page_alloc: refactor init checks in post_alloc_hook Separate code for zeroing memory from the code clearing tags in post_alloc_hook(). This patch is not useful by itself but makes the simplifications in the following patches easier to follow. This patch does no functional changes. Link: https://lkml.kernel.org/r/2283fde963adfd8a2b29a92066f106cc16661a3c.1643047180.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov Reviewed-by: Alexander Potapenko Acked-by: Marco Elver Cc: Andrey Ryabinin Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Evgenii Stepanov Cc: Mark Rutland Cc: Peter Collingbourne Cc: Vincenzo Frascino Cc: Will Deacon Signed-off-by: Andrew Morton --- mm/page_alloc.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) --- a/mm/page_alloc.c~kasan-page_alloc-refactor-init-checks-in-post_alloc_hook +++ a/mm/page_alloc.c @@ -2368,19 +2368,21 @@ inline void post_alloc_hook(struct page kasan_alloc_pages(page, order, gfp_flags); } else { bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags); + bool init_tags = init && (gfp_flags & __GFP_ZEROTAGS); kasan_unpoison_pages(page, order, init); - if (init) { - if (gfp_flags & __GFP_ZEROTAGS) { - int i; - - for (i = 0; i < 1 << order; i++) - tag_clear_highpage(page + i); - } else { - kernel_init_free_pages(page, 1 << order); - } + if (init_tags) { + int i; + + for (i = 0; i < 1 << order; i++) + tag_clear_highpage(page + i); + + init = false; } + + if (init) + kernel_init_free_pages(page, 1 << order); } set_page_owner(page, order, gfp_flags); _ Patches currently in -mm which might be from andreyknvl@google.com are stacktrace-add-interface-based-on-shadow-call-stack.patch arm64-scs-save-scs_sp-values-per-cpu-when-switching-stacks.patch arm64-implement-stack_trace_save_shadow.patch kasan-use-stack_trace_save_shadow.patch