From patchwork Wed Oct 2 23:49:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Verma, Vishal L" X-Patchwork-Id: 11171915 Return-Path: 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 BB3E216B1 for ; Wed, 2 Oct 2019 23:49:36 +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 9717A21A4C for ; Wed, 2 Oct 2019 23:49:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9717A21A4C 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 new-ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 7369A100DC42E; Wed, 2 Oct 2019 16:50:53 -0700 (PDT) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=134.134.136.24; helo=mga09.intel.com; envelope-from=vishal.l.verma@intel.com; receiver= Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (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 54B26100DC415 for ; Wed, 2 Oct 2019 16:50:51 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Oct 2019 16:49:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,250,1566889200"; d="scan'208";a="195032094" Received: from vverma7-desk1.lm.intel.com ([10.232.112.164]) by orsmga003.jf.intel.com with ESMTP; 02 Oct 2019 16:49:32 -0700 From: Vishal Verma To: Subject: [ndctl PATCH 00/10] fixes and movability for system-ram mode Date: Wed, 2 Oct 2019 17:49:15 -0600 Message-Id: <20191002234925.9190-1-vishal.l.verma@intel.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Message-ID-Hash: 5RQEPNHD6GJB6X7AFMHTKKKGDGBNNBF5 X-Message-ID-Hash: 5RQEPNHD6GJB6X7AFMHTKKKGDGBNNBF5 X-MailFrom: vishal.l.verma@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: Dave Hansen , Ben Olson , Michal Biesek X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: This patchset improves the user experience around memory onlining, specifically the state it is onlined in - movable vs non-movable. It also adds an option to make the memory non-movable when onlining. Patches 1-3 perform some preparatory and clean up steps. Patches 4-6 add a way to determine and display the 'movable' vs 'non-movable' state of memory. Patches 7-8 attempt to detect a race with memory onlining, and add a Documentation clarification Patches 9-10 Add the new --no-movable option to commands that may online memory. Vishal Verma (10): libdaxctl: refactor path construction in op_for_one_memblock() libdaxctl: refactor memblock_is_online() checks daxctl/device.c: fix json output omission for reconfigure-device libdaxctl: add an API to determine if memory is movable libdaxctl: allow memblock_in_dev() to return an error daxctl: show a 'movable' attribute in device listings daxctl: detect races when onlining memory blocks Documentation: clarify memory movablity for reconfigure-device libdaxctl: add an API to online memory in a non-movable state daxctl: add --no-movable option for onlining memory Documentation/daxctl/daxctl-online-memory.txt | 2 + .../daxctl/daxctl-reconfigure-device.txt | 24 +- Documentation/daxctl/movable-options.txt | 10 + daxctl/device.c | 45 ++- daxctl/lib/libdaxctl-private.h | 26 ++ daxctl/lib/libdaxctl.c | 280 +++++++++++++----- daxctl/lib/libdaxctl.sym | 6 + daxctl/libdaxctl.h | 2 + util/json.c | 14 +- 9 files changed, 324 insertions(+), 85 deletions(-) create mode 100644 Documentation/daxctl/movable-options.txt