From patchwork Thu Nov 15 04:53:30 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dan Williams X-Patchwork-Id: 10683513 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C8BA314DB for ; Thu, 15 Nov 2018 05:05:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B71EF2BE35 for ; Thu, 15 Nov 2018 05:05:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AB72E2BE81; Thu, 15 Nov 2018 05:05:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 41A582BE35 for ; Thu, 15 Nov 2018 05:05:20 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 293B521191724; Wed, 14 Nov 2018 21:05:20 -0800 (PST) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=134.134.136.126; helo=mga18.intel.com; envelope-from=dan.j.williams@intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (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 6F8DB21190734 for ; Wed, 14 Nov 2018 21:05:19 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga106.jf.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 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 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ksummit-discuss@lists.linuxfoundation.org, linux-nvdimm@lists.01.org, corbet@lwn.net, Ross Zwisler Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP 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