From patchwork Sun Dec 1 01:49:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11268195 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 75A30921 for ; Sun, 1 Dec 2019 01:49:38 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 392D62086A for ; Sun, 1 Dec 2019 01:49:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="TS8twS18" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 392D62086A 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 F266D6B026C; Sat, 30 Nov 2019 20:49:36 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id EAC776B026D; Sat, 30 Nov 2019 20:49:36 -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 D9C216B026E; Sat, 30 Nov 2019 20:49:36 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0167.hostedemail.com [216.40.44.167]) by kanga.kvack.org (Postfix) with ESMTP id B51516B026C for ; Sat, 30 Nov 2019 20:49:36 -0500 (EST) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 77ED72A87 for ; Sun, 1 Dec 2019 01:49:36 +0000 (UTC) X-FDA: 76214890752.07.tank54_8e0f377011234 X-Spam-Summary: 2,0,0,5d9a2b3f9688308a,d41d8cd98f00b204,akpm@linux-foundation.org,:akpm@linux-foundation.org:cl@linux.com:iamjoonsoo.kim@lge.com::mm-commits@vger.kernel.org:penberg@kernel.org:rientjes@google.com:torvalds@linux-foundation.org:yuzhao@google.com,RULES_HIT:41:355:379:800:960:966:967:973:988:989:1260:1263:1345:1381:1431:1437:1534:1541:1711:1730:1747:1777:1792:2196:2199:2393:2525:2553:2559:2563:2682:2685:2859:2895:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3353:3865:3866:3867:3868:3870:3871:3874:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4250:4321:4385:5007:6261:6653:7576:8599:8957:9010:9025:9545:10004:10913:11026:11473:11658:11914:12043:12048:12296:12297:12517:12519:12555:12679:12783:12986:13069:13311:13357:13846:14096:14181:14384:14721:14849:21080:21451:21627:21939:30054:30062:30070:30090,0,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,LFti me:3,LUA X-HE-Tag: tank54_8e0f377011234 X-Filterd-Recvd-Size: 2822 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Sun, 1 Dec 2019 01:49:36 +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 2C13B2084E; Sun, 1 Dec 2019 01:49:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575164975; bh=aC3UXHsLJBaoXZvVZuJ5ZHBRDyl7oCuZnjX4Fv4bwp4=; h=Date:From:To:Subject:From; b=TS8twS18zGxIvxnu3lfMawKwr+7QhKbCE4+B3w0YxT6Ps2/nTmZ7AQGMiV0UrXJot YTGNLhmJ7AdJ4071mzVEMIkG4WYVsN+iwkzXVrVajgi91UIWT1OY40s4wcQF39YlvK NYeuc7MJlouchjPnKN8cvAw3GtD4X4tfj82og0oc= Date: Sat, 30 Nov 2019 17:49:34 -0800 From: akpm@linux-foundation.org To: akpm@linux-foundation.org, cl@linux.com, iamjoonsoo.kim@lge.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, penberg@kernel.org, rientjes@google.com, torvalds@linux-foundation.org, yuzhao@google.com Subject: [patch 009/158] mm/slub.c: update comments Message-ID: <20191201014934.ftAafosqZ%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: Yu Zhao Subject: mm/slub.c: update comments Slub doesn't use PG_active and PG_error anymore. Link: http://lkml.kernel.org/r/20191007222023.162256-1-yuzhao@google.com Signed-off-by: Yu Zhao Reviewed-by: Andrew Morton Acked-by: David Rientjes Cc: Christoph Lameter Cc: Pekka Enberg Cc: Joonsoo Kim Signed-off-by: Andrew Morton --- mm/slub.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) --- a/mm/slub.c~mm-update-comments-in-slubc +++ a/mm/slub.c @@ -93,9 +93,7 @@ * minimal so we rely on the page allocators per cpu caches for * fast frees and allocs. * - * Overloading of page flags that are otherwise used for LRU management. - * - * PageActive The slab is frozen and exempt from list processing. + * page->frozen The slab is frozen and exempt from list processing. * This means that the slab is dedicated to a purpose * such as satisfying allocations for a specific * processor. Objects may be freed in the slab while @@ -111,7 +109,7 @@ * free objects in addition to the regular freelist * that requires the slab lock. * - * PageError Slab requires special handling due to debug + * SLAB_DEBUG_FLAGS Slab requires special handling due to debug * options set. This moves slab handling out of * the fast path and disables lockless freelists. */