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From: Dan Williams <dan.j.williams@intel.com>
To: Mike Rapoport <rppt@linux.ibm.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	"David Hildenbrand" <david@redhat.com>,
	"Jane Chu" <jane.chu@oracle.com>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Pavel Tatashin" <pasha.tatashin@soleen.com>,
	"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
	"Robin Murphy" <robin.murphy@arm.com>,
	"Anshuman Khandual" <anshuman.khandual@arm.com>,
	"Logan Gunthorpe" <logang@deltatee.com>,
	"Paul Mackerras" <paulus@samba.org>,
	"Toshi Kani" <toshi.kani@hpe.com>,
	"Oscar Salvador" <osalvador@suse.de>,
	"Jeff Moyer" <jmoyer@redhat.com>,
	"Michal Hocko" <mhocko@suse.com>,
	"Vlastimil Babka" <vbabka@suse.cz>,
	stable <stable@vger.kernel.org>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	linux-nvdimm <linux-nvdimm@lists.01.org>,
	"Linux MM" <linux-mm@kvack.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v8 00/12] mm: Sub-section memory hotplug support
Date: Mon, 13 May 2019 14:11:54 -0700	[thread overview]
Message-ID: <CAPcyv4he64-d=govm4+OEt75gxeuLZcrwrhow5dT=rA3KwQ4JA@mail.gmail.com> (raw)
In-Reply-To: <20190513210148.GA21574@rapoport-lnx>

On Mon, May 13, 2019 at 2:02 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
>
> Hi Dan,
>
> On Mon, May 06, 2019 at 04:39:26PM -0700, Dan Williams wrote:
> > Changes since v7 [1]:
>
> Sorry for jumping late

No worries, it needs to be rebased on David's "mm/memory_hotplug:
Factor out memory block device handling" series which puts it firmly
in v5.3 territory.

> but presuming there will be v9, it'd be great if it
> would also include include updates to
> Documentation/admin-guide/mm/memory-hotplug.rst and

If I've done my job right this series should be irrelevant to
Documentation/admin-guide/mm/memory-hotplug.rst. The subsection
capability is strictly limited to arch_add_memory() users that never
online the memory, i.e. only ZONE_DEVICE / devm_memremap_pages()
users. So this isn't "memory-hotplug" as much as it is "support for
subsection vmemmap management".

> Documentation/vm/memory-model.rst

This looks more fitting and should probably include a paragraph on the
general ZONE_DEVICE / devm_memremap_pages() use case.

  reply	other threads:[~2019-05-13 21:12 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-06 23:39 Dan Williams
2019-05-06 23:39 ` [PATCH v8 01/12] mm/sparsemem: Introduce struct mem_section_usage Dan Williams
2019-05-10 13:30   ` osalvador
2019-05-10 19:38     ` Dan Williams
2019-05-06 23:39 ` [PATCH v8 02/12] mm/memremap: Rename and consolidate SECTION_SIZE Dan Williams
2019-05-06 23:39 ` [PATCH v8 03/12] mm/sparsemem: Add helpers track active portions of a section at boot Dan Williams
2019-05-10 12:56   ` osalvador
2019-05-06 23:39 ` [PATCH v8 04/12] mm/hotplug: Prepare shrink_{zone, pgdat}_span for sub-section removal Dan Williams
2019-05-06 23:39 ` [PATCH v8 05/12] mm/sparsemem: Convert kmalloc_section_memmap() to populate_section_memmap() Dan Williams
2019-05-06 23:39 ` [PATCH v8 06/12] mm/hotplug: Kill is_dev_zone() usage in __remove_pages() Dan Williams
2019-05-06 23:40 ` [PATCH v8 07/12] mm: Kill is_dev_zone() helper Dan Williams
2019-05-06 23:40 ` [PATCH v8 08/12] mm/sparsemem: Prepare for sub-section ranges Dan Williams
2019-05-10 13:00   ` osalvador
2019-05-06 23:40 ` [PATCH v8 09/12] mm/sparsemem: Support sub-section hotplug Dan Williams
2019-05-08 23:15   ` Oscar Salvador
2019-05-13 13:54   ` Oscar Salvador
2019-06-04  4:47     ` Dan Williams
2019-05-06 23:40 ` [PATCH v8 10/12] mm/devm_memremap_pages: Enable sub-section remap Dan Williams
2019-05-06 23:40 ` [PATCH v8 11/12] libnvdimm/pfn: Fix fsdax-mode namespace info-block zero-fields Dan Williams
2019-05-06 23:40 ` [PATCH v8 12/12] libnvdimm/pfn: Stop padding pmem namespaces to section alignment Dan Williams
2019-05-13 21:01 ` [PATCH v8 00/12] mm: Sub-section memory hotplug support Mike Rapoport
2019-05-13 21:11   ` Dan Williams [this message]
2019-06-04  7:41 ` Oscar Salvador

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