From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT 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 C6030C2D0E4 for ; Tue, 17 Nov 2020 07:16:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 832FA221EB for ; Tue, 17 Nov 2020 07:16:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726890AbgKQHPg (ORCPT ); Tue, 17 Nov 2020 02:15:36 -0500 Received: from out30-43.freemail.mail.aliyun.com ([115.124.30.43]:37208 "EHLO out30-43.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726266AbgKQHPf (ORCPT ); Tue, 17 Nov 2020 02:15:35 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R321e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04400;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=3;SR=0;TI=SMTPD_---0UFfwQuB_1605597329; Received: from aliy80.localdomain(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0UFfwQuB_1605597329) by smtp.aliyun-inc.com(127.0.0.1); Tue, 17 Nov 2020 15:15:29 +0800 From: Alex Shi Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] khugepaged: add couples parameter explanation for kernel-doc markup Date: Tue, 17 Nov 2020 15:15:25 +0800 Message-Id: <1605597325-25284-1-git-send-email-alex.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add missed parameter explanation for some kernel-doc warnings: mm/khugepaged.c:102: warning: Function parameter or member 'nr_pte_mapped_thp' not described in 'mm_slot' mm/khugepaged.c:102: warning: Function parameter or member 'pte_mapped_thp' not described in 'mm_slot' mm/khugepaged.c:1424: warning: Function parameter or member 'mm' not described in 'collapse_pte_mapped_thp' mm/khugepaged.c:1424: warning: Function parameter or member 'addr' not described in 'collapse_pte_mapped_thp' mm/khugepaged.c:1626: warning: Function parameter or member 'mm' not described in 'collapse_file' mm/khugepaged.c:1626: warning: Function parameter or member 'file' not described in 'collapse_file' mm/khugepaged.c:1626: warning: Function parameter or member 'start' not described in 'collapse_file' mm/khugepaged.c:1626: warning: Function parameter or member 'hpage' not described in 'collapse_file' mm/khugepaged.c:1626: warning: Function parameter or member 'node' not described in 'collapse_file' Signed-off-by: Alex Shi Cc: Andrew Morton Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- mm/khugepaged.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 757292532767..8f7aee4efdc3 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -90,6 +90,8 @@ static struct kmem_cache *mm_slot_cache __read_mostly; * @hash: hash collision list * @mm_node: khugepaged scan list headed in khugepaged_scan.mm_head * @mm: the mm that this information is valid for + * @nr_pte_mapped_thp: number of pte mapped THP + * @pte_mapped_thp: address array corresponding pte mapped THP */ struct mm_slot { struct hlist_node hash; @@ -1414,7 +1416,11 @@ static int khugepaged_add_pte_mapped_thp(struct mm_struct *mm, } /** - * Try to collapse a pte-mapped THP for mm at address haddr. + * collapse_pte_mapped_thp - Try to collapse a pte-mapped THP for mm at + * address haddr. + * + * @mm: process address space where collapse happens + * @addr: THP collapse address * * This function checks whether all the PTEs in the PMD are pointing to the * right THP. If so, retract the page table so the THP can refault in with @@ -1605,6 +1611,12 @@ static void retract_page_tables(struct address_space *mapping, pgoff_t pgoff) /** * collapse_file - collapse filemap/tmpfs/shmem pages into huge one. * + * @mm: process address space where collapse happens + * @file: file that collapse on + * @start: collapse start address + * @hpage: new allocated huge page for collapse + * @node: appointed node the new huge page allocate from + * * Basic scheme is simple, details are more complex: * - allocate and lock a new huge page; * - scan page cache replacing old pages with the new one -- 2.29.GIT