Message ID | 20200714070220.3500839-14-ira.weiny@intel.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
Return-Path: <SRS0=ES6B=AZ=lists.01.org=linux-nvdimm-bounces@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 7D28A13B6 for <patchwork-linux-nvdimm@patchwork.kernel.org>; Tue, 14 Jul 2020 07:04:32 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (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 6504222205 for <patchwork-linux-nvdimm@patchwork.kernel.org>; Tue, 14 Jul 2020 07:04:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6504222205 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 00C5610056B14; Tue, 14 Jul 2020 00:04:32 -0700 (PDT) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=192.55.52.120; helo=mga04.intel.com; envelope-from=ira.weiny@intel.com; receiver=<UNKNOWN> Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id C480810056AFD for <linux-nvdimm@lists.01.org>; Tue, 14 Jul 2020 00:04:28 -0700 (PDT) IronPort-SDR: Q0PTe7EP388qT0S2BRDRsyVcqaWDF5Hh4evrZVG+r6KltLWtFKORezpwnKWulqlXiXc2UjMDXR 5nhgRgYOtlRQ== X-IronPort-AV: E=McAfee;i="6000,8403,9681"; a="146304360" X-IronPort-AV: E=Sophos;i="5.75,350,1589266800"; d="scan'208";a="146304360" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2020 00:04:28 -0700 IronPort-SDR: M1818UDpOziaMV+1NuZExXbDGKfxAHE7xxsE/1/8eIxmubbVe3Yh1zWgdqipkeJC59admPi65v orXIGfMQFVpQ== X-IronPort-AV: E=Sophos;i="5.75,350,1589266800"; d="scan'208";a="390397762" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2020 00:04:26 -0700 From: ira.weiny@intel.com To: 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> Subject: [RFC PATCH 13/15] dax: Stray write protection for dax_direct_access() Date: Tue, 14 Jul 2020 00:02:18 -0700 Message-Id: <20200714070220.3500839-14-ira.weiny@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200714070220.3500839-1-ira.weiny@intel.com> References: <20200714070220.3500839-1-ira.weiny@intel.com> MIME-Version: 1.0 Message-ID-Hash: 4VCPYB4R3QXGSCPX3ORYB2U5RQH7XTSW X-Message-ID-Hash: 4VCPYB4R3QXGSCPX3ORYB2U5RQH7XTSW X-MailFrom: ira.weiny@intel.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: x86@kernel.org, Dave Hansen <dave.hansen@linux.intel.com>, Andrew Morton <akpm@linux-foundation.org>, 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 X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." <linux-nvdimm.lists.01.org> Archived-At: <https://lists.01.org/hyperkitty/list/linux-nvdimm@lists.01.org/message/4VCPYB4R3QXGSCPX3ORYB2U5RQH7XTSW/> List-Archive: <https://lists.01.org/hyperkitty/list/linux-nvdimm@lists.01.org/> List-Help: <mailto:linux-nvdimm-request@lists.01.org?subject=help> List-Post: <mailto:linux-nvdimm@lists.01.org> List-Subscribe: <mailto:linux-nvdimm-join@lists.01.org> List-Unsubscribe: <mailto:linux-nvdimm-leave@lists.01.org> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit |
Series |
PKS: Add Protection Keys Supervisor (PKS) support
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diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 021739768093..e8d0a28e6ed2 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -30,12 +30,14 @@ static DEFINE_SPINLOCK(dax_host_lock); int dax_read_lock(void) { + dev_access_enable(); return srcu_read_lock(&dax_srcu); } EXPORT_SYMBOL_GPL(dax_read_lock); void dax_read_unlock(int id) { + dev_access_disable(); srcu_read_unlock(&dax_srcu, id); } EXPORT_SYMBOL_GPL(dax_read_unlock);