From patchwork Wed May 5 01:36:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 12238867 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 9D4ADC433B4 for ; Wed, 5 May 2021 01:36:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3ECEA6141B for ; Wed, 5 May 2021 01:36:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3ECEA6141B 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 CBA8C8D004E; Tue, 4 May 2021 21:36:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C911B8D003B; Tue, 4 May 2021 21:36:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B0A5E8D004E; Tue, 4 May 2021 21:36:03 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0138.hostedemail.com [216.40.44.138]) by kanga.kvack.org (Postfix) with ESMTP id 8A3B78D003B for ; Tue, 4 May 2021 21:36:03 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 557087580 for ; Wed, 5 May 2021 01:36:03 +0000 (UTC) X-FDA: 78105461406.23.9C36466 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf03.hostedemail.com (Postfix) with ESMTP id 15F55C0007CC for ; Wed, 5 May 2021 01:35:55 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id B8FAD6141D; Wed, 5 May 2021 01:36:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1620178562; bh=mU6cIqcVjgsclMBxURaJZ65WHDcdApAXMGCD0XkH/4E=; h=Date:From:To:Subject:In-Reply-To:From; b=u5LigiGSYM8qnTq3upywmQt7omGoN1RZwmtmDrkmDOrOaCS+u2PT5zfYl2ZODpLCH Cu7cLXMvQpIKbWVfQsCAXpOQPR9QK3TVHXQZ2fOOZc2Rp8/B+EFoRq23MqkVbXzVV5 kJ1pV70YLGNKe9jf3ZhiLeWAnEsrtCV/Z0veyhTY= Date: Tue, 04 May 2021 18:36:01 -0700 From: Andrew Morton To: akpm@linux-foundation.org, alex.shi@linux.alibaba.com, ben.widawsky@intel.com, cai@lca.pw, cl@linux.com, dan.j.williams@intel.com, dave.hansen@linux.intel.com, dwagner@suse.de, linux-mm@kvack.org, mm-commits@vger.kernel.org, osalvador@suse.de, rientjes@google.com, tobin@kernel.org, torvalds@linux-foundation.org, ying.huang@intel.com Subject: [patch 060/143] mm/vmscan: move RECLAIM* bits to uapi header Message-ID: <20210505013601.4xVjgVnyO%akpm@linux-foundation.org> In-Reply-To: <20210504183219.a3cc46aee4013d77402276c5@linux-foundation.org> User-Agent: s-nail v14.8.16 Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=u5LigiGS; spf=pass (imf03.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 15F55C0007CC X-Stat-Signature: pkeaxbmf9opx6umds3jpt8rur86butyj Received-SPF: none (linux-foundation.org>: No applicable sender policy available) receiver=imf03; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1620178555-171129 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: Dave Hansen Subject: mm/vmscan: move RECLAIM* bits to uapi header It is currently not obvious that the RECLAIM_* bits are part of the uapi since they are defined in vmscan.c. Move them to a uapi header to make it obvious. This should have no functional impact. Link: https://lkml.kernel.org/r/20210219172557.08074910@viggo.jf.intel.com Signed-off-by: Dave Hansen Reviewed-by: Ben Widawsky Reviewed-by: Oscar Salvador Acked-by: David Rientjes Acked-by: Christoph Lameter Cc: Alex Shi Cc: Daniel Wagner Cc: "Tobin C. Harding" Cc: Christoph Lameter Cc: Huang Ying Cc: Dan Williams Cc: Qian Cai Signed-off-by: Andrew Morton --- include/uapi/linux/mempolicy.h | 7 +++++++ mm/vmscan.c | 8 -------- 2 files changed, 7 insertions(+), 8 deletions(-) --- a/include/uapi/linux/mempolicy.h~mm-vmscan-move-reclaim-bits-to-uapi-header +++ a/include/uapi/linux/mempolicy.h @@ -64,5 +64,12 @@ enum { #define MPOL_F_MOF (1 << 3) /* this policy wants migrate on fault */ #define MPOL_F_MORON (1 << 4) /* Migrate On protnone Reference On Node */ +/* + * These bit locations are exposed in the vm.zone_reclaim_mode sysctl + * ABI. New bits are OK, but existing bits can never change. + */ +#define RECLAIM_ZONE (1<<0) /* Run shrink_inactive_list on the zone */ +#define RECLAIM_WRITE (1<<1) /* Writeout pages during reclaim */ +#define RECLAIM_UNMAP (1<<2) /* Unmap pages during reclaim */ #endif /* _UAPI_LINUX_MEMPOLICY_H */ --- a/mm/vmscan.c~mm-vmscan-move-reclaim-bits-to-uapi-header +++ a/mm/vmscan.c @@ -4087,14 +4087,6 @@ module_init(kswapd_init) int node_reclaim_mode __read_mostly; /* - * These bit locations are exposed in the vm.zone_reclaim_mode sysctl - * ABI. New bits are OK, but existing bits can never change. - */ -#define RECLAIM_ZONE (1<<0) /* Run shrink_inactive_list on the zone */ -#define RECLAIM_WRITE (1<<1) /* Writeout pages during reclaim */ -#define RECLAIM_UNMAP (1<<2) /* Unmap pages during reclaim */ - -/* * Priority for NODE_RECLAIM. This determines the fraction of pages * of a node considered for each zone_reclaim. 4 scans 1/16th of * a zone.