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 1732FC761A6 for ; Thu, 6 Apr 2023 02:45:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233720AbjDFCpF (ORCPT ); Wed, 5 Apr 2023 22:45:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234987AbjDFCoc (ORCPT ); Wed, 5 Apr 2023 22:44:32 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08B4C86B6 for ; Wed, 5 Apr 2023 19:44:31 -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 dfw.source.kernel.org (Postfix) with ESMTPS id DE4D964272 for ; Thu, 6 Apr 2023 02:44:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43E4FC433D2; Thu, 6 Apr 2023 02:44:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1680749070; bh=UP5tY4IOBCBARGITpnC5R60BT5aWTOZN+cLsdvcsJk0=; h=Date:To:From:Subject:From; b=2qh2ZEwA+Ql1o+HZ8AL1gBtcexnngNFHvMtIaKNGd7erKSEZaxwT3VWzUBrZpuyNU y+vrkp0x4mKmGBjgKN+Vp75ltVgnSeHeGDBQnuZX9VDVrsOMICgdS03bqTyfKeGu3h 3jHhpCux68n1ok4LE5CULck6VPMEGnOcxemauio0= Date: Wed, 05 Apr 2023 19:44:29 -0700 To: mm-commits@vger.kernel.org, vbabka@suse.cz, rppt@kernel.org, mike.kravetz@oracle.com, mgorman@suse.de, david@redhat.com, davem@davemloft.net, kirill.shutemov@linux.intel.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] sparc-mm-fix-max_order-usage-in-tsb_grow.patch removed from -mm tree Message-Id: <20230406024430.43E4FC433D2@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: sparc/mm: fix MAX_ORDER usage in tsb_grow() has been removed from the -mm tree. Its filename was sparc-mm-fix-max_order-usage-in-tsb_grow.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: "Kirill A. Shutemov" Subject: sparc/mm: fix MAX_ORDER usage in tsb_grow() Date: Wed, 15 Mar 2023 14:31:24 +0300 Patch series "Fix confusion around MAX_ORDER". MAX_ORDER currently defined as number of orders page allocator supports: user can ask buddy allocator for page order between 0 and MAX_ORDER-1. This definition is counter-intuitive and lead to number of bugs all over the kernel. Fix the bugs and then change the definition of MAX_ORDER to be inclusive: the range of orders user can ask from buddy allocator is 0..MAX_ORDER now. This patch (of 10): MAX_ORDER is not inclusive: the maximum allocation order buddy allocator can deliver is MAX_ORDER-1. Fix MAX_ORDER usage in tsb_grow(). Link: https://lkml.kernel.org/r/20230315113133.11326-1-kirill.shutemov@linux.intel.com Link: https://lkml.kernel.org/r/20230315113133.11326-2-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov Reviewed-by: Mike Kravetz Acked-by: Mike Rapoport (IBM) Cc: David Miller Cc: David Hildenbrand Cc: Kirill A. Shutemov Cc: Mel Gorman Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- arch/sparc/mm/tsb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/sparc/mm/tsb.c~sparc-mm-fix-max_order-usage-in-tsb_grow +++ a/arch/sparc/mm/tsb.c @@ -402,8 +402,8 @@ void tsb_grow(struct mm_struct *mm, unsi unsigned long new_rss_limit; gfp_t gfp_flags; - if (max_tsb_size > (PAGE_SIZE << MAX_ORDER)) - max_tsb_size = (PAGE_SIZE << MAX_ORDER); + if (max_tsb_size > (PAGE_SIZE << (MAX_ORDER - 1))) + max_tsb_size = (PAGE_SIZE << (MAX_ORDER - 1)); new_cache_index = 0; for (new_size = 8192; new_size < max_tsb_size; new_size <<= 1UL) { _ Patches currently in -mm which might be from kirill.shutemov@linux.intel.com are