From patchwork Fri Aug 7 06:19:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11704769 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 34FC714B7 for ; Fri, 7 Aug 2020 06:19:43 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 060A72177B for ; Fri, 7 Aug 2020 06:19:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="AiqF741c" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 060A72177B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id AFE348D002F; Fri, 7 Aug 2020 02:19:41 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id AAECF8D0026; Fri, 7 Aug 2020 02:19:41 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9EC208D002F; Fri, 7 Aug 2020 02:19:41 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0092.hostedemail.com [216.40.44.92]) by kanga.kvack.org (Postfix) with ESMTP id 878BC8D0026 for ; Fri, 7 Aug 2020 02:19:41 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 3FAC1181AEF10 for ; Fri, 7 Aug 2020 06:19:41 +0000 (UTC) X-FDA: 77122771362.27.dad38_2c0868126fbe Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin27.hostedemail.com (Postfix) with ESMTP id 1B1943D663 for ; Fri, 7 Aug 2020 06:19:41 +0000 (UTC) X-Spam-Summary: 1,0,0,391e294e23c93b54,d41d8cd98f00b204,akpm@linux-foundation.org,,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1263:1345:1359:1381:1431:1437:1534:1541:1711:1730:1747:1777:1792:2198:2199:2393:2525:2559:2563:2682:2685:2693:2859:2892:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3865:3867:3868:3870:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6261:6653:7576:8599:9025:9545:10004:10913:11026:11473:11658:11914:12043:12048:12296:12297:12517:12519:12555:12679:12783:12986:13069:13311:13357:13846:14181:14384:14721:14849:21080:21451:21627:21939:30054:30064:30075,0,RBL:198.145.29.99:@linux-foundation.org:.lbl8.mailshell.net-62.2.0.100 64.100.201.201;04ygqcn94jpwsb3qheg53m9ntzmujocjtnnhuesppgw593qbzrqxww1uf986s4g.uyr5hfwnzr1k9hhd8eaew7h3mzhpj6utwxbu8amrpt9e5nxk3ghyswuyeheh8rb.1-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custo m_rules: X-HE-Tag: dad38_2c0868126fbe X-Filterd-Recvd-Size: 2764 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf04.hostedemail.com (Postfix) with ESMTP for ; Fri, 7 Aug 2020 06:19:40 +0000 (UTC) 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 X-Rspamd-Queue-Id: 1B1943D663 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000289, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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: