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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 B4D9AC433DF for ; Tue, 13 Oct 2020 23:51:54 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4CB6E221FF for ; Tue, 13 Oct 2020 23:51:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="WpmOp3HT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4CB6E221FF 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 E721D6B00B0; Tue, 13 Oct 2020 19:51:53 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DF4C76B00B1; Tue, 13 Oct 2020 19:51:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CBCF36B00B2; Tue, 13 Oct 2020 19:51:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0084.hostedemail.com [216.40.44.84]) by kanga.kvack.org (Postfix) with ESMTP id 9B2826B00B0 for ; Tue, 13 Oct 2020 19:51:53 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 33B66181AEF0B for ; Tue, 13 Oct 2020 23:51:53 +0000 (UTC) X-FDA: 77368552506.30.sound40_611420c27207 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin30.hostedemail.com (Postfix) with ESMTP id 170B6180B3C8B for ; Tue, 13 Oct 2020 23:51:53 +0000 (UTC) X-HE-Tag: sound40_611420c27207 X-Filterd-Recvd-Size: 2935 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf45.hostedemail.com (Postfix) with ESMTP for ; Tue, 13 Oct 2020 23:51:52 +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 9337C21D81; Tue, 13 Oct 2020 23:51:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602633111; bh=Bt1wofAOZG5357ODR7cfgLhSFUlCFFMxMkjLjY1Z/4E=; h=Date:From:To:Subject:In-Reply-To:From; b=WpmOp3HT2QLsJXgIiL/rzc6XEwBhmLHV/zFR2XLghVAFPXC8gWhzlaUpmRCx9uFBk 4qwJyc/VAJMLAvJh+DbEM2tVwuFi8c6b7KGMTA9+qnkha54AENvIvzfjWbfXvD9on1 zA7oW2F6rQc0xIR2CL70KeYyFnlo5shNm96vQpes= Date: Tue, 13 Oct 2020 16:51:51 -0700 From: Andrew Morton To: akpm@linux-foundation.org, ira.weiny@intel.com, jhubbard@nvidia.com, keith.busch@intel.com, kirill.shutemov@linux.intel.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, song.bao.hua@hisilicon.com, torvalds@linux-foundation.org Subject: [patch 064/181] mm/gup_benchmark: update the documentation in Kconfig Message-ID: <20201013235151.1uV1MoXWp%akpm@linux-foundation.org> In-Reply-To: <20201013164658.3bfd96cc224d8923e66a9f4e@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: Barry Song Subject: mm/gup_benchmark: update the documentation in Kconfig In the beginning, mm/gup_benchmark.c supported get_user_pages_fast() only, but right now, it supports the benchmarking of a couple of get_user_pages() related calls like: * get_user_pages_fast() * get_user_pages() * pin_user_pages_fast() * pin_user_pages() The documentation is confusing and needs update. Link: https://lkml.kernel.org/r/20200821032546.19992-1-song.bao.hua@hisilicon.com Signed-off-by: Barry Song Cc: John Hubbard Cc: Keith Busch Cc: Ira Weiny Cc: Kirill A. Shutemov Signed-off-by: Andrew Morton --- mm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/Kconfig~mm-gup_benchmark-update-the-documentation-in-kconfig +++ a/mm/Kconfig @@ -831,10 +831,10 @@ config PERCPU_STATS be used to help understand percpu memory usage. config GUP_BENCHMARK - bool "Enable infrastructure for get_user_pages_fast() benchmarking" + bool "Enable infrastructure for get_user_pages() and related calls benchmarking" help Provides /sys/kernel/debug/gup_benchmark that helps with testing - performance of get_user_pages_fast(). + performance of get_user_pages() and related calls. See tools/testing/selftests/vm/gup_benchmark.c _