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=-12.7 required=3.0 tests=BAYES_00, 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 98A8DC9DCB6 for ; Fri, 9 Oct 2020 19:54:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4EEE322B51 for ; Fri, 9 Oct 2020 19:54:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4EEE322B51 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id ADA766B010D; Fri, 9 Oct 2020 15:54:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A5DF86B0110; Fri, 9 Oct 2020 15:54:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9036A6B0112; Fri, 9 Oct 2020 15:54:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 588976B010E for ; Fri, 9 Oct 2020 15:54:00 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id E890D181AE864 for ; Fri, 9 Oct 2020 19:53:59 +0000 (UTC) X-FDA: 77353437798.22.men74_3307323271e3 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin22.hostedemail.com (Postfix) with ESMTP id BF49F18038E60; Fri, 9 Oct 2020 19:53:59 +0000 (UTC) X-HE-Tag: men74_3307323271e3 X-Filterd-Recvd-Size: 4247 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by imf17.hostedemail.com (Postfix) with ESMTP; Fri, 9 Oct 2020 19:53:58 +0000 (UTC) IronPort-SDR: Q1GeKPWwTN48ce8cObNX9NUQGSipXJynkXIfqRCAnWLGeGRzaqzLzFM45P6hERi9V1hnvBSxnU g4YtPpbxvMJg== X-IronPort-AV: E=McAfee;i="6000,8403,9769"; a="182976531" X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="182976531" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:57 -0700 IronPort-SDR: I2dap8dqfU4jkUPjfDUEInlXytro00aRpG9kPai7q+149QpAXJ//5ZcvM1PB/3zTdLq6ZFWD0B HAucu70KNsIA== X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="343972515" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:56 -0700 From: ira.weiny@intel.com To: Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Peter Zijlstra Cc: Ira Weiny , Benjamin Herrenschmidt , Paul Mackerras , x86@kernel.org, Dave Hansen , Dan Williams , Fenghua Yu , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, kexec@lists.infradead.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, devel@driverdev.osuosl.org, linux-efi@vger.kernel.org, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-aio@kvack.org, io-uring@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-um@lists.infradead.org, linux-ntfs-dev@lists.sourceforge.net, reiserfs-devel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, cluster-devel@redhat.com, ecryptfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-afs@lists.infradead.org, linux-rdma@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, xen-devel@lists.xenproject.org, linux-cachefs@redhat.com, samba-technical@lists.samba.org, intel-wired-lan@lists.osuosl.org Subject: [PATCH RFC PKS/PMEM 54/58] powerpc: Utilize new kmap_thread() Date: Fri, 9 Oct 2020 12:50:29 -0700 Message-Id: <20201009195033.3208459-55-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 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: From: Ira Weiny These kmap() calls are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call. Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Ira Weiny --- arch/powerpc/mm/mem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 42e25874f5a8..6ef557b8dda6 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -573,9 +573,9 @@ void flush_icache_user_page(struct vm_area_struct *vm= a, struct page *page, { unsigned long maddr; =20 - maddr =3D (unsigned long) kmap(page) + (addr & ~PAGE_MASK); + maddr =3D (unsigned long) kmap_thread(page) + (addr & ~PAGE_MASK); flush_icache_range(maddr, maddr + len); - kunmap(page); + kunmap_thread(page); } =20 /* --=20 2.28.0.rc0.12.gb6a658bd00c9