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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBF82C433E0 for ; Fri, 7 Aug 2020 06:19:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C79932177B for ; Fri, 7 Aug 2020 06:19:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596781180; bh=hcjiEN1mC7jp49mnfMnVEO2vmtArkqbgEDjs37HuOMQ=; h=Date:From:To:Subject:In-Reply-To:Reply-To:List-ID:From; b=ri2UnIWP60N3shcGdZNmTbtILhd9lkNiG5A9pKrHtFu6GO/3nVuqbjgQwEyEj+KMa tYRk+AVnr18oPmqVwr0OOO1BEPKM/ISW/lwobqRDeZBHXjuTDsWn+/3QRaDvRC6nEq cjFKNRBeoxWDgerqlI783OeYkl2TwG/w7NOG+3aw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725900AbgHGGTk (ORCPT ); Fri, 7 Aug 2020 02:19:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:55398 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725379AbgHGGTk (ORCPT ); Fri, 7 Aug 2020 02:19:40 -0400 Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 96BE1221E5; Fri, 7 Aug 2020 06:19:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596781180; bh=hcjiEN1mC7jp49mnfMnVEO2vmtArkqbgEDjs37HuOMQ=; h=Date:From:To:Subject:In-Reply-To:From; b=AiqF741cpSznTP/wzTjW3LjLDPCIoUE5GUe6vK6sOj8twiO/TBmXR/EBcjT99Rari lnvx35MOGfrm5VqMglEJkAxGXRPP8PvzKu4YbhdimYYvCev5sTRVAWRYTZ7uOXaJHE WykvXC+LYU3HFRiKb4tUyNlQzNpH4X6puNf8+4W0= Date: Thu, 06 Aug 2020 23:19:39 -0700 From: Andrew Morton To: akpm@linux-foundation.org, jhubbard@nvidia.com, kirill@shutemov.name, linux-mm@kvack.org, mm-commits@vger.kernel.org, rppt@linux.ibm.com, torvalds@linux-foundation.org, vbabka@suse.cz, william.kucharski@oracle.com, willy@infradead.org Subject: [patch 046/163] mm/debug: print head flags in dump_page Message-ID: <20200807061939.k2nP4sOpR%akpm@linux-foundation.org> In-Reply-To: <20200806231643.a2711a608dd0f18bff2caf2b@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: mm-commits-owner@vger.kernel.org Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: "Matthew Wilcox (Oracle)" Subject: mm/debug: print head flags in dump_page Tail page flags contain very little useful information. Print the head page's flags instead. While the flags will contain "head" for tail pages, this should not be too confusing as the previous line starts with the word "head:" and so the flags should be interpreted as belonging to the head page. Link: http://lkml.kernel.org/r/20200709202117.7216-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Mike Rapoport Reviewed-by: John Hubbard Acked-by: Vlastimil Babka Cc: "Kirill A. Shutemov" Cc: William Kucharski Signed-off-by: Andrew Morton --- mm/debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/debug.c~mm-print-head-flags-in-dump_page +++ a/mm/debug.c @@ -168,7 +168,7 @@ void __dump_page(struct page *page, cons out_mapping: BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1); - pr_warn("%sflags: %#lx(%pGp)%s\n", type, page->flags, &page->flags, + pr_warn("%sflags: %#lx(%pGp)%s\n", type, head->flags, &head->flags, page_cma ? " CMA" : ""); hex_only: _