From patchwork Sun Dec 1 01:51:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11268261 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 17FE7921 for ; Sun, 1 Dec 2019 01:51:27 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D8B15208E4 for ; Sun, 1 Dec 2019 01:51:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="brdrJhuw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D8B15208E4 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 389F86B02AA; Sat, 30 Nov 2019 20:51:25 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 33F7A6B02AC; Sat, 30 Nov 2019 20:51:25 -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 278726B02AD; Sat, 30 Nov 2019 20:51:25 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0125.hostedemail.com [216.40.44.125]) by kanga.kvack.org (Postfix) with ESMTP id 09BAC6B02AA for ; Sat, 30 Nov 2019 20:51:25 -0500 (EST) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id C9F5740DD for ; Sun, 1 Dec 2019 01:51:24 +0000 (UTC) X-FDA: 76214895288.17.fruit82_c4cfb581a213 X-Spam-Summary: 2,0,0,3acfc8ef57041861,d41d8cd98f00b204,akpm@linux-foundation.org,:akpm@linux-foundation.org::miles.chen@mediatek.com:mm-commits@vger.kernel.org:paulmck@kernel.org:torvalds@linux-foundation.org,RULES_HIT:41:355:379:800:960:967:968:973:988:989:1260:1263:1345:1381:1431:1437:1534:1541:1711:1730:1747:1777:1792:2194:2199:2393:2525:2559:2563:2682:2685:2859:2902:2915:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3865:3867:3868:3870:3871:3872:3874:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6261:6653:7576:7903:8599:8957:9025:9545:10004:10913:11026:11473:11658:11914:12043:12048:12296:12297:12438:12517:12519:12555:12679:12783:12986:13069:13311:13357:13846:14181:14384:14721:14849:21080:21451:21627:21939:30041:30054:30069,0,RBL:198.145.29.99:@linux-foundation.org:.lbl8.mailshell.net-62.2.0.100 64.100.201.201,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: X-HE-Tag: fruit82_c4cfb581a213 X-Filterd-Recvd-Size: 2681 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf22.hostedemail.com (Postfix) with ESMTP for ; Sun, 1 Dec 2019 01:51:24 +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 9CF4620880; Sun, 1 Dec 2019 01:51:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575165083; bh=iWBHcdA+bdpU8QXhtXLYQVnDQR43HVBDwD3MwX7XDnk=; h=Date:From:To:Subject:From; b=brdrJhuwpM9T63q9Y4lnrg76k18jI7by8UT64EAXwCwQtDun72yysBdZJrDCDM9GL 5ngYLb7bOXVWQn4jZhb95Rs7Nm7uAeZmQmlpMb94/4PT6TH37ZPU5F0UxcMKrTG7U2 TuSWPPob3cY/KCA/wSFBgqrC3NOMGTq3ZiLl6YGI= Date: Sat, 30 Nov 2019 17:51:23 -0800 From: akpm@linux-foundation.org To: akpm@linux-foundation.org, linux-mm@kvack.org, miles.chen@mediatek.com, mm-commits@vger.kernel.org, paulmck@kernel.org, torvalds@linux-foundation.org Subject: [patch 042/158] mm/rmap.c: fix outdated comment in page_get_anon_vma() Message-ID: <20191201015123.RcoCgMv9e%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: Miles Chen Subject: mm/rmap.c: fix outdated comment in page_get_anon_vma() Replace DESTROY_BY_RCU with SLAB_TYPESAFE_BY_RCU because SLAB_DESTROY_BY_RCU has been renamed to SLAB_TYPESAFE_BY_RCU by commit 5f0d5a3ae7cf ("mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU") Link: http://lkml.kernel.org/r/20191017093554.22562-1-miles.chen@mediatek.com Signed-off-by: Miles Chen Cc: Paul E. McKenney Signed-off-by: Andrew Morton --- mm/rmap.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/mm/rmap.c~mm-fix-outdated-comment-in-page_get_anon_vma +++ a/mm/rmap.c @@ -477,9 +477,10 @@ void __init anon_vma_init(void) * chain and verify that the page in question is indeed mapped in it * [ something equivalent to page_mapped_in_vma() ]. * - * Since anon_vma's slab is DESTROY_BY_RCU and we know from page_remove_rmap() - * that the anon_vma pointer from page->mapping is valid if there is a - * mapcount, we can dereference the anon_vma after observing those. + * Since anon_vma's slab is SLAB_TYPESAFE_BY_RCU and we know from + * page_remove_rmap() that the anon_vma pointer from page->mapping is valid + * if there is a mapcount, we can dereference the anon_vma after observing + * those. */ struct anon_vma *page_get_anon_vma(struct page *page) {