From patchwork Sun Dec 1 01:55:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11268379 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 32E0F921 for ; Sun, 1 Dec 2019 01:55:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F16A1208E4 for ; Sun, 1 Dec 2019 01:55:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="NNZFUUYw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F16A1208E4 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 0528D6B0324; Sat, 30 Nov 2019 20:55:24 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id F1CCC6B0326; Sat, 30 Nov 2019 20:55:23 -0500 (EST) 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 E0BEF6B0327; Sat, 30 Nov 2019 20:55:23 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0038.hostedemail.com [216.40.44.38]) by kanga.kvack.org (Postfix) with ESMTP id C58A06B0324 for ; Sat, 30 Nov 2019 20:55:23 -0500 (EST) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 7C5A12A87 for ; Sun, 1 Dec 2019 01:55:23 +0000 (UTC) X-FDA: 76214905326.26.doll55_2f093c3aba03c X-Spam-Summary: 2,0,0,a08d76c992e898b5,d41d8cd98f00b204,akpm@linux-foundation.org,:akpm@linux-foundation.org:jqqlijiazi@gmail.com:lijiazi@xiaomi.com::mgorman@techsingularity.net:mm-commits@vger.kernel.org:torvalds@linux-foundation.org,RULES_HIT:41:355:379:800:960:966:967:973:988:989:1260:1263:1345:1381:1431:1437:1534:1541:1711:1714:1730:1747:1777:1792:2196:2199:2393:2525:2559:2563:2682:2685:2693:2859:2899:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3351:3865:3870:3871:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:4385:5007:6261:6653:7514:7576:9025:9545:10004:10913:11026:11257:11473:11658:11914:12043:12048:12296:12297:12438:12517:12519:12555:12679:12783:12986:13069:13311:13357:13846:14181:14384:14721:14849:21080:21451:21627:21939:30054:30075,0,RBL:error,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:4,LUA_SUMMARY:none X-HE-Tag: doll55_2f093c3aba03c X-Filterd-Recvd-Size: 2673 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf02.hostedemail.com (Postfix) with ESMTP for ; Sun, 1 Dec 2019 01:55:23 +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 22E07208C3; Sun, 1 Dec 2019 01:55:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575165322; bh=ICyPJ3VVcywJgy42PXxV2zrqmZcAQVo1QDly+Avs8c4=; h=Date:From:To:Subject:From; b=NNZFUUYwgmD0kGg8FanUuvajQmbLfq1ZW4NIibY2mt6scCGIuwiw5CzoQxcyrDjvz SoXPvc1EC81pjV4nWGh4ele0vDWE8ppr064r05fj92ZDKhxSd34VyXNPX64DFTfMo5 ZmNgKl99eE33DV4S0gXS75hrlxjk8T5qfHfyrziY= Date: Sat, 30 Nov 2019 17:55:21 -0800 From: akpm@linux-foundation.org To: akpm@linux-foundation.org, jqqlijiazi@gmail.com, lijiazi@xiaomi.com, linux-mm@kvack.org, mgorman@techsingularity.net, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 101/158] mm/page_alloc.c: print reserved_highatomic info Message-ID: <20191201015521.O5E5mCmVA%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: lijiazi Subject: mm/page_alloc.c: print reserved_highatomic info Print nr_reserved_highatomic in show_free_areas, because when alloc_harder is false, this value will be subtracted from the free_pages in __zone_watermark_ok. Printing this value can help analyze memory allocaction failure issues. Link: http://lkml.kernel.org/r/19515f3de2fb6abe66b52e03e4b676a21e82beda.1573634806.git.lijiazi@xiaomi.com Signed-off-by: lijiazi Reviewed-by: Andrew Morton Cc: Mel Gorman Signed-off-by: Andrew Morton --- mm/page_alloc.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/page_alloc.c~mm-page_alloc-print-reserved_highatomic-info +++ a/mm/page_alloc.c @@ -5354,6 +5354,7 @@ void show_free_areas(unsigned int filter " min:%lukB" " low:%lukB" " high:%lukB" + " reserved_highatomic:%luKB" " active_anon:%lukB" " inactive_anon:%lukB" " active_file:%lukB" @@ -5375,6 +5376,7 @@ void show_free_areas(unsigned int filter K(min_wmark_pages(zone)), K(low_wmark_pages(zone)), K(high_wmark_pages(zone)), + K(zone->nr_reserved_highatomic), K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)), K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)), K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)),