From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755225AbdIRLAu (ORCPT ); Mon, 18 Sep 2017 07:00:50 -0400 Received: from mga03.intel.com ([134.134.136.65]:48036 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752713AbdIRK4L (ORCPT ); Mon, 18 Sep 2017 06:56:11 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,412,1500966000"; d="scan'208";a="901293283" From: "Kirill A. Shutemov" To: Ingo Molnar , Linus Torvalds , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" Cc: Andrew Morton , Andy Lutomirski , Cyrill Gorcunov , Borislav Petkov , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" , Minchan Kim , Nitin Gupta , Sergey Senozhatsky Subject: [PATCHv7 02/19] mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS Date: Mon, 18 Sep 2017 13:55:36 +0300 Message-Id: <20170918105553.27914-3-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170918105553.27914-1-kirill.shutemov@linux.intel.com> References: <20170918105553.27914-1-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With boot-time switching between paging mode we will have variable MAX_PHYSMEM_BITS. Let's use the maximum variable possible for CONFIG_X86_5LEVEL=y configuration to define zsmalloc data structures. Signed-off-by: Kirill A. Shutemov Cc: Minchan Kim Cc: Nitin Gupta Cc: Sergey Senozhatsky --- mm/zsmalloc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 7c38e850a8fc..fe22661f2fe5 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -93,7 +93,13 @@ #define MAX_PHYSMEM_BITS BITS_PER_LONG #endif #endif + +#ifdef CONFIG_X86_5LEVEL +/* MAX_PHYSMEM_BITS is variable, use maximum value here */ +#define _PFN_BITS (52 - PAGE_SHIFT) +#else #define _PFN_BITS (MAX_PHYSMEM_BITS - PAGE_SHIFT) +#endif /* * Memory for allocating for handle keeps object position by -- 2.14.1