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=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS 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 45D05C04EBF for ; Thu, 15 Nov 2018 05:05:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 18507223DD for ; Thu, 15 Nov 2018 05:05:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 18507223DD 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-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728652AbeKOPLh (ORCPT ); Thu, 15 Nov 2018 10:11:37 -0500 Received: from mga14.intel.com ([192.55.52.115]:53967 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728527AbeKOPLh (ORCPT ); Thu, 15 Nov 2018 10:11:37 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2018 21:05:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,235,1539673200"; d="scan'208";a="279966524" Received: from dwillia2-desk3.jf.intel.com (HELO dwillia2-desk3.amr.corp.intel.com) ([10.54.39.16]) by fmsmga005.fm.intel.com with ESMTP; 14 Nov 2018 21:05:18 -0800 Subject: [RFC PATCH 3/3] libnvdimm, MAINTAINERS: Subsystem Profile From: Dan Williams To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , Vishal Verma , Dave Jiang , corbet@lwn.net, linux-nvdimm@lists.01.org, ksummit-discuss@lists.linuxfoundation.org Date: Wed, 14 Nov 2018 20:53:30 -0800 Message-ID: <154225761038.2499188.1270468803677883744.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <154225759358.2499188.15268218778137905050.stgit@dwillia2-desk3.amr.corp.intel.com> References: <154225759358.2499188.15268218778137905050.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.18-2-gc94f MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Document the basic policies of the libnvdimm subsystem and provide a first example of a Subsystem Profile for others to duplicate and edit. Cc: Ross Zwisler Cc: Vishal Verma Cc: Dave Jiang Signed-off-by: Dan Williams --- Documentation/nvdimm/subsystem-profile.rst | 86 ++++++++++++++++++++++++++++ MAINTAINERS | 4 + 2 files changed, 90 insertions(+) create mode 100644 Documentation/nvdimm/subsystem-profile.rst diff --git a/Documentation/nvdimm/subsystem-profile.rst b/Documentation/nvdimm/subsystem-profile.rst new file mode 100644 index 000000000000..d3428be7528e --- /dev/null +++ b/Documentation/nvdimm/subsystem-profile.rst @@ -0,0 +1,86 @@ +LIBNVDIMM Subsystem Profile +=========================== + +Overview +-------- +So, you have recently become a maintainer of the LIBNVDIMM subsystem, +condolences, it is a thankless job, here is the lay of the land. The git +tree, git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git/, is +writable by all the individuals listed in LIBNVDIMM section of +MAINTAINERS. Access is granted per the typical kernel.org account +management policies. Two branches in that tree are regularly pulled into +-next, libnvdimm-for-next, and libnvdimm-fixes. The submit rate of +patches is low, usually enough for one person to handle. There is a +patchwork instance at +https://patchwork.kernel.org/project/linux-nvdimm/list/, and it +historically is only used for ingesting patches and collecting +ack/review tags, i.e. no expectation to update the patch state after it +has been dispositioned, or merged. + +The most sensitive code area is the ACPI DSM (Device Specific Method) +path. In addition to the general fragility of an ioctl() ABI the ACPI +DSM scheme allows any vendor to implement any command without any prior +review by the ACPI committee. For this reason the LIBNVDIMM system seeks +to constrain the proliferation of vendor commands and at a minimum +requires any command support to be publicly documented. Over time the +submission rate of new vendor-specific commands is falling as more +commands are defined with named methods in the official ACPI +specification. + +LIBNVDIMM sits at the intersection of device-drivers, the block-layer, +core memory-management, and filesystems. Be sure to re-route memory +management patches to the -mm tree, and otherwise pull-in fs-devel for +patches that touch anything related to DAX. + +Core +---- +F: drivers/nvdimm/\*_devs.c +F: drivers/acpi/nfit/\*.[ch] + + +Patches or Pull requests +------------------------ +Patches only + + +Last day for new feature submissions +------------------------------------ +Before -rc5 + + +Last day to merge features +-------------------------- +End of last -rc + + +Non-author Ack / Review Tags Required +------------------------------------- +Required + + +Test Suite +---------- +Run ‘make check’ from https://github.com/pmem/ndctl + + +Trusted Reviewers +----------------- +Johannes Thumshirn +Toshi Kani +Jeff Moyer +Robert Elliott + + +Resubmit Cadence +---------------- +8 business days + + +Time Zone / Office Hours +------------------------ +8:00am to 5:00pm Pacific Time Zone + + +Checkpatch / Style cleanups +--------------------------- +Standalone style-cleanups are welcome. diff --git a/MAINTAINERS b/MAINTAINERS index bb4a83a7684d..ba2beedd4605 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8439,6 +8439,7 @@ M: Dan Williams M: Vishal Verma M: Dave Jiang L: linux-nvdimm@lists.01.org +P: Documentation/nvdimm/subsystem-profile.rst Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ S: Supported F: drivers/nvdimm/blk.c @@ -8450,6 +8451,7 @@ M: Dan Williams M: Ross Zwisler M: Dave Jiang L: linux-nvdimm@lists.01.org +P: Documentation/nvdimm/subsystem-profile.rst Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ S: Supported F: drivers/nvdimm/btt* @@ -8460,6 +8462,7 @@ M: Dan Williams M: Vishal Verma M: Dave Jiang L: linux-nvdimm@lists.01.org +P: Documentation/nvdimm/subsystem-profile.rst Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ S: Supported F: drivers/nvdimm/pmem* @@ -8478,6 +8481,7 @@ M: Ross Zwisler M: Vishal Verma M: Dave Jiang L: linux-nvdimm@lists.01.org +P: Documentation/nvdimm/subsystem-profile.rst Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git S: Supported