Message ID | 20201009195033.3208459-51-ira.weiny@intel.com (mailing list archive) |
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State | RFC |
Headers | show
Return-Path: <SRS0=zYoG=DQ=vger.kernel.org=linux-rdma-owner@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B758F1744 for <patchwork-linux-rdma@patchwork.kernel.org>; Fri, 9 Oct 2020 19:57:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7B4E225A9 for <patchwork-linux-rdma@patchwork.kernel.org>; Fri, 9 Oct 2020 19:57:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390234AbgJIT5J (ORCPT <rfc822;patchwork-linux-rdma@patchwork.kernel.org>); Fri, 9 Oct 2020 15:57:09 -0400 Received: from mga05.intel.com ([192.55.52.43]:56531 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391159AbgJITxp (ORCPT <rfc822;linux-rdma@vger.kernel.org>); Fri, 9 Oct 2020 15:53:45 -0400 IronPort-SDR: Zi8fB/10ZdxwgrOQJLoGHp29GfkIGrQILKgo8B8+JwyOVRnOCR6id+o1zPE8oNQtf0YN5WB/Pq Myx+WV+qE/+A== X-IronPort-AV: E=McAfee;i="6000,8403,9769"; a="250226326" X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="250226326" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:43 -0700 IronPort-SDR: Uit4axCqwtogby85Iv/hBLI1Moj4COtsBpPB5jXSVWpuENwpihzSQwSQg3nZnBMabzVvybSK2I 1kQ4taZ9oZgQ== X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="298531484" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:43 -0700 From: ira.weiny@intel.com To: Andrew Morton <akpm@linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>, Peter Zijlstra <peterz@infradead.org> Cc: Ira Weiny <ira.weiny@intel.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, x86@kernel.org, Dave Hansen <dave.hansen@linux.intel.com>, Dan Williams <dan.j.williams@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, 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 50/58] drivers/android: Utilize new kmap_thread() Date: Fri, 9 Oct 2020 12:50:25 -0700 Message-Id: <20201009195033.3208459-51-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: 8bit Precedence: bulk List-ID: <linux-rdma.vger.kernel.org> X-Mailing-List: linux-rdma@vger.kernel.org |
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PMEM: Introduce stray write protection for PMEM
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diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c index 69609696a843..5f50856caad7 100644 --- a/drivers/android/binder_alloc.c +++ b/drivers/android/binder_alloc.c @@ -1118,9 +1118,9 @@ binder_alloc_copy_user_to_buffer(struct binder_alloc *alloc, page = binder_alloc_get_page(alloc, buffer, buffer_offset, &pgoff); size = min_t(size_t, bytes, PAGE_SIZE - pgoff); - kptr = kmap(page) + pgoff; + kptr = kmap_thread(page) + pgoff; ret = copy_from_user(kptr, from, size); - kunmap(page); + kunmap_thread(page); if (ret) return bytes - size + ret; bytes -= size;