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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 CFF0EC43215 for ; Tue, 26 Nov 2019 08:56:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 96F0520722 for ; Tue, 26 Nov 2019 08:56:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96F0520722 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 429BF6B02C5; Tue, 26 Nov 2019 03:56:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3D92C6B02C6; Tue, 26 Nov 2019 03:56:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2EEFB6B02C7; Tue, 26 Nov 2019 03:56:56 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0066.hostedemail.com [216.40.44.66]) by kanga.kvack.org (Postfix) with ESMTP id 151A76B02C5 for ; Tue, 26 Nov 2019 03:56:56 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 9927E8249980 for ; Tue, 26 Nov 2019 08:56:55 +0000 (UTC) X-FDA: 76197823590.08.floor29_59748556e932b X-HE-Tag: floor29_59748556e932b X-Filterd-Recvd-Size: 2744 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf41.hostedemail.com (Postfix) with ESMTP for ; Tue, 26 Nov 2019 08:56:54 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 937B330E; Tue, 26 Nov 2019 00:56:53 -0800 (PST) Received: from [10.163.1.41] (unknown [10.163.1.41]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 51BA43F52E; Tue, 26 Nov 2019 00:59:54 -0800 (PST) Subject: Re: [PATCH] mm: khugepaged: add trace status description for SCAN_PAGE_HAS_PRIVATE To: Yang Shi , songliubraving@fb.com, kirill.shutemov@linux.intel.com, akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <1574706428-36212-1-git-send-email-yang.shi@linux.alibaba.com> From: Anshuman Khandual Message-ID: <729623eb-df56-c436-2ca3-8f73772f539c@arm.com> Date: Tue, 26 Nov 2019 14:27:35 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <1574706428-36212-1-git-send-email-yang.shi@linux.alibaba.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit 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: On 11/25/2019 11:57 PM, Yang Shi wrote: > The commit 99cb0dbd47a15d395bf3faa78dc122bc5efe3fc0 ("mm,thp: add Reduce the commit SHA ID here to just 12 digits instead ? > read-only THP support for (non-shmem) FS") instroduced a new khugepaged s/instroduced/introduced/ > scan result: SCAN_PAGE_HAS_PRIVATE, but the corresponding description > for trance events were not added. s/trance/trace/ > > Cc: Song Liu > Cc: Kirill A. Shutemov > Signed-off-by: Yang Shi > --- > include/trace/events/huge_memory.h | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/include/trace/events/huge_memory.h b/include/trace/events/huge_memory.h > index dd4db33..d49fbce 100644 > --- a/include/trace/events/huge_memory.h > +++ b/include/trace/events/huge_memory.h > @@ -31,7 +31,8 @@ > EM( SCAN_ALLOC_HUGE_PAGE_FAIL, "alloc_huge_page_failed") \ > EM( SCAN_CGROUP_CHARGE_FAIL, "ccgroup_charge_failed") \ > EM( SCAN_EXCEED_SWAP_PTE, "exceed_swap_pte") \ > - EMe(SCAN_TRUNCATED, "truncated") \ > + EM( SCAN_TRUNCATED, "truncated") \ > + EMe(SCAN_PAGE_HAS_PRIVATE, "has_private") \ Majority of the SCAN_PAGE_* scan results have page_ in the front. Hence we should just follow same pattern here and make it 'page_has_private' instead. > > #undef EM > #undef EMe >