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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 39F4DC8463A for ; Fri, 9 Oct 2020 19:53:15 +0000 (UTC) Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CF242224DE; Fri, 9 Oct 2020 19:53:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sourceforge.net header.i=@sourceforge.net header.b="UsddTBc+"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sf.net header.i=@sf.net header.b="dgccR+G+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF242224DE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-f2fs-devel-bounces@lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1kQyS2-0001e1-Go; Fri, 09 Oct 2020 19:53:14 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQyS1-0001dK-4I; Fri, 09 Oct 2020 19:53:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=EGrJxN/ef1abZfWDYFoKJOJ1ngDJ1Mw3IOeqo/qPAOA=; b=UsddTBc+91pd3TKoja2C5Fak7h dwDaMGKRlPpdM142OErvyXdixcK52xcJBDIjHaI/VCm3VPV3ZYCSvN2W0BBsY3y/qbrw3IO2ZkcR/ ifKecQ4hb4MJSwypED0JK9+znLYtujkWEr6PfYAmdArG9C2SSz8MvJY3uf2TeoRsJ+cQ=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=EGrJxN/ef1abZfWDYFoKJOJ1ngDJ1Mw3IOeqo/qPAOA=; b=dgccR+G+PrRr6Kr4xiqBVqp7iL dM5AitlJ++nS4KiknBe0m8iuwpnJHhTe6qL5iMm7v8rLOZb4jYw6fhC/Xoj+DgmwR3xbQEMagdJIE 4L1uXB0nJDyEN00MAdR//XLIeCTt8VCM9IUl17b462PZV2XdqpVALCYToULM++JVD+4A=; Received: from mga04.intel.com ([192.55.52.120]) by sfi-mx-3.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.2) id 1kQyRw-004aTX-KN; Fri, 09 Oct 2020 19:53:13 +0000 IronPort-SDR: UTJI2w+F74dQA9/CpoyRSjHj5AYfSZ8xfFrn34xwIG1oRDTgSMzZvDMTAjDm3lGAIB4wsto7XO JxcRwePuQt3w== X-IronPort-AV: E=McAfee;i="6000,8403,9769"; a="162893562" X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="162893562" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:02 -0700 IronPort-SDR: bH2kRxXxeY8kuFBN5R8RneSpQbEQLW5eawptefbcIpm8xkU067aWcbaReXxx6/6TDXgDaxiIQ5 8lenxDucas2g== X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="519847131" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:02 -0700 From: ira.weiny@intel.com To: Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Peter Zijlstra Date: Fri, 9 Oct 2020 12:50:12 -0700 Message-Id: <20201009195033.3208459-38-ira.weiny@intel.com> X-Mailer: git-send-email 2.28.0.rc0.12.gb6a658bd00c9 In-Reply-To: <20201009195033.3208459-1-ira.weiny@intel.com> References: <20201009195033.3208459-1-ira.weiny@intel.com> MIME-Version: 1.0 X-Headers-End: 1kQyRw-004aTX-KN Subject: [f2fs-dev] [PATCH RFC PKS/PMEM 37/58] fs/ext2: Utilize new kmap_thread() X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aio@kvack.org, linux-efi@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-mmc@vger.kernel.org, Dave Hansen , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, target-devel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kselftest@vger.kernel.org, samba-technical@lists.samba.org, Ira Weiny , ceph-devel@vger.kernel.org, drbd-dev@lists.linbit.com, devel@driverdev.osuosl.org, linux-cifs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvdimm@lists.01.org, linux-rdma@vger.kernel.org, x86@kernel.org, amd-gfx@lists.freedesktop.org, linux-afs@lists.infradead.org, cluster-devel@redhat.com, linux-cachefs@redhat.com, intel-wired-lan@lists.osuosl.org, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, Fenghua Yu , linux-um@lists.infradead.org, intel-gfx@lists.freedesktop.org, ecryptfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, reiserfs-devel@vger.kernel.org, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, Dan Williams , io-uring@vger.kernel.org, linux-nfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, netdev@vger.kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Jan Kara , linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Ira Weiny These kmap() calls are localized to a single thread. To avoid the over head of global PKRS update use the new kmap_thread() call instead. Cc: Jan Kara Signed-off-by: Ira Weiny --- fs/ext2/dir.c | 2 +- fs/ext2/ext2.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index f3194bf20733..abe97ba458c8 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c @@ -196,7 +196,7 @@ static struct page * ext2_get_page(struct inode *dir, unsigned long n, struct address_space *mapping = dir->i_mapping; struct page *page = read_mapping_page(mapping, n, NULL); if (!IS_ERR(page)) { - kmap(page); + kmap_thread(page); if (unlikely(!PageChecked(page))) { if (PageError(page) || !ext2_check_page(page, quiet)) goto fail; diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index 021ec8b42ac3..9bcb6714c255 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -749,7 +749,7 @@ extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **); extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *, int); static inline void ext2_put_page(struct page *page) { - kunmap(page); + kunmap_thread(page); put_page(page); } -- 2.28.0.rc0.12.gb6a658bd00c9 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel