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=-16.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 EC41FC388F7 for ; Tue, 10 Nov 2020 11:59:13 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5BCC4206B2 for ; Tue, 10 Nov 2020 11:59:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5BCC4206B2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 760076B0036; Tue, 10 Nov 2020 06:59:11 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 710DA6B005C; Tue, 10 Nov 2020 06:59:11 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 626F76B005D; Tue, 10 Nov 2020 06:59:11 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0078.hostedemail.com [216.40.44.78]) by kanga.kvack.org (Postfix) with ESMTP id 35E0E6B0036 for ; Tue, 10 Nov 2020 06:59:11 -0500 (EST) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id A953C8249980 for ; Tue, 10 Nov 2020 11:59:10 +0000 (UTC) X-FDA: 77468362860.29.linen39_1d0f238272f4 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin29.hostedemail.com (Postfix) with ESMTP id 8BCED180868C8 for ; Tue, 10 Nov 2020 11:59:10 +0000 (UTC) X-HE-Tag: linen39_1d0f238272f4 X-Filterd-Recvd-Size: 3132 Received: from out30-44.freemail.mail.aliyun.com (out30-44.freemail.mail.aliyun.com [115.124.30.44]) by imf44.hostedemail.com (Postfix) with ESMTP for ; Tue, 10 Nov 2020 11:59:08 +0000 (UTC) X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R101e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04407;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=4;SR=0;TI=SMTPD_---0UEspu5m_1605009541; Received: from IT-FVFX43SYHV2H.local(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0UEspu5m_1605009541) by smtp.aliyun-inc.com(127.0.0.1); Tue, 10 Nov 2020 19:59:02 +0800 Subject: Re: [PATCH] mm/filemap: add static for function __add_to_page_cache_locked To: Souptick Joarder Cc: Andrew Morton , Linux-MM , linux-kernel@vger.kernel.org References: <1604661895-5495-1-git-send-email-alex.shi@linux.alibaba.com> From: Alex Shi Message-ID: Date: Tue, 10 Nov 2020 19:58:38 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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: =E5=9C=A8 2020/11/10 =E4=B8=8A=E5=8D=8811:09, Souptick Joarder =E5=86=99=E9= =81=93: > On Fri, Nov 6, 2020 at 4:55 PM Alex Shi wr= ote: >> >> Otherwise it cause gcc warning: >> ^~~~~~~~~~~~~~~ >> ../mm/filemap.c:830:14: warning: no previous prototype for >> =E2=80=98__add_to_page_cache_locked=E2=80=99 [-Wmissing-prototypes] >> noinline int __add_to_page_cache_locked(struct page *page, >> ^~~~~~~~~~~~~~~~~~~~~~~~~~ >=20 > Is CONFIG_DEBUG_INFO_BTF enabled in your .config ? Sorry, I tried to buld the configure with bzImage, but failed on pahole v= ersion too low, and compiled pahole still can not run in git://git.kernel.org/pub/scm/de= vel/pahole/pahole.git #pahole pahole: symbol lookup error: pahole: undefined symbol: tabs >=20 >> >> Signed-off-by: Alex Shi >> Cc: Andrew Morton >> Cc: linux-mm@kvack.org >> Cc: linux-kernel@vger.kernel.org >> --- >> mm/filemap.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/mm/filemap.c b/mm/filemap.c >> index d90614f501da..249cf489f5df 100644 >> --- a/mm/filemap.c >> +++ b/mm/filemap.c >> @@ -827,7 +827,7 @@ int replace_page_cache_page(struct page *old, stru= ct page *new, gfp_t gfp_mask) >> } >> EXPORT_SYMBOL_GPL(replace_page_cache_page); >> >> -noinline int __add_to_page_cache_locked(struct page *page, >> +static noinline int __add_to_page_cache_locked(struct page *page, >> struct address_space *mapping, >> pgoff_t offset, gfp_t gfp, >> void **shadowp) >> -- >> 1.8.3.1 >> >>