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=-6.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT 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 7492EC433DF for ; Fri, 10 Jul 2020 20:26:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 285BC20748 for ; Fri, 10 Jul 2020 20:26:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="JvNKc38f" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 285BC20748 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C0F956B0002; Fri, 10 Jul 2020 16:26:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BBE2F6B0003; Fri, 10 Jul 2020 16:26:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AD4268D0001; Fri, 10 Jul 2020 16:26:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0081.hostedemail.com [216.40.44.81]) by kanga.kvack.org (Postfix) with ESMTP id 9A66F6B0002 for ; Fri, 10 Jul 2020 16:26:46 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id F2575180ACEFC for ; Fri, 10 Jul 2020 20:26:45 +0000 (UTC) X-FDA: 77023299570.23.vase51_461051626ed1 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin23.hostedemail.com (Postfix) with ESMTP id C9BEA3762A for ; Fri, 10 Jul 2020 20:26:45 +0000 (UTC) X-HE-Tag: vase51_461051626ed1 X-Filterd-Recvd-Size: 2233 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf37.hostedemail.com (Postfix) with ESMTP for ; Fri, 10 Jul 2020 20:26:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=DPDLhOPyTR58c5XLvh90prHBLsIMHo4ID4j/JD9bUg8=; b=JvNKc38f5LHqXwB2F4s23ue4dU EdIyRqVOPDjpQnb5Y6ewARFAk7S3hhawEPIxG7FABSybhKkgDsNn54mWu5l35dUSswM0ByiMXFE/W ipvRF/h4x1LXPrQZZEHSmXUaXQ+lB4MJMMZw97r1UQfLCZ9J8uLITg8w3JXdYzxbXV3Yv3oLeGJvB 7CE4q1KomSNP7FCv78YNS46oCnmmFUkNDq6ZV0tW0R4RxzJyVS/B3CSLuZuJ7c2PP5pTwVZII0Ncg O1K812gDzt79IPpkdSuWr2M0XgM3uqsYHVdVvRjIP0JKMTj8+eLjPXFijdWQJoXM+sgwCs4eKTVAs 02wnPvKw==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jtzbX-0005gM-Hq; Fri, 10 Jul 2020 20:26:43 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH 0/4] Remove/consolidate calls to find_get_entry Date: Fri, 10 Jul 2020 21:26:38 +0100 Message-Id: <20200710202642.21794-1-willy@infradead.org> X-Mailer: git-send-email 2.21.3 MIME-Version: 1.0 X-Rspamd-Queue-Id: C9BEA3762A X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000029, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: As part of the THP work, I audited the callers of find_get_entry() and found one bug and three opportunities for optimisation. Patch 2 is the bugfix as it depends on using the same code as mincore_page(). I don't really like having find_get_swap_page() in mincore.c, but I can't find anywhere better to put it. Matthew Wilcox (Oracle) (4): mm: Factor find_get_swap_page out of mincore_page mm: Use find_get_swap_page in memcontrol mm: Optimise madvise WILLNEED proc: Optimise smaps for shmem entries fs/proc/task_mmu.c | 8 +----- include/linux/pagemap.h | 1 + mm/madvise.c | 20 +++++++------- mm/memcontrol.c | 25 ++--------------- mm/mincore.c | 59 +++++++++++++++++++++++------------------ 5 files changed, 47 insertions(+), 66 deletions(-) --=20 2.27.0