From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-kernel@vger.kernel.org, boaz@plexistor.com,
riel@redhat.com, linux-nvdimm@lists.01.org,
Dave Hansen <dave.hansen@linux.intel.com>,
david@fromorbit.com, mingo@kernel.org, linux-mm@kvack.org,
Ingo Molnar <mingo@redhat.com>,
mgorman@suse.de, "H. Peter Anvin" <hpa@zytor.com>,
ross.zwisler@linux.intel.com, torvalds@linux-foundation.org,
hch@lst.de
Subject: Re: [RFC PATCH 1/7] x86, mm: ZONE_DEVICE for "device memory"
Date: Sat, 15 Aug 2015 15:33:55 +0200 [thread overview]
Message-ID: <20150815133355.GA24382@lst.de> (raw)
In-Reply-To: <20150813035005.36913.77364.stgit@otcpl-skl-sds-2.jf.intel.com>
On Wed, Aug 12, 2015 at 11:50:05PM -0400, Dan Williams wrote:
> arch_add_memory() is reorganized a bit in preparation for a new
> arch_add_dev_memory() api, for now there is no functional change to the
> memory hotplug code.
Instead of the new arch_add_dev_memory call I'd just add a bool device
argument to arch_add_memory and zone_for_memory (and later the altmap
pointer aswell).
arch_add_memory is a candidate to be factored into common code,
except for s390 everything could be done with two small arch callouts.
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-kernel@vger.kernel.org, boaz@plexistor.com,
riel@redhat.com, linux-nvdimm@ml01.01.org,
Dave Hansen <dave.hansen@linux.intel.com>,
david@fromorbit.com, mingo@kernel.org, linux-mm@kvack.org,
Ingo Molnar <mingo@redhat.com>,
mgorman@suse.de, "H. Peter Anvin" <hpa@zytor.com>,
ross.zwisler@linux.intel.com, torvalds@linux-foundation.org,
hch@lst.de
Subject: Re: [RFC PATCH 1/7] x86, mm: ZONE_DEVICE for "device memory"
Date: Sat, 15 Aug 2015 15:33:55 +0200 [thread overview]
Message-ID: <20150815133355.GA24382@lst.de> (raw)
In-Reply-To: <20150813035005.36913.77364.stgit@otcpl-skl-sds-2.jf.intel.com>
On Wed, Aug 12, 2015 at 11:50:05PM -0400, Dan Williams wrote:
> arch_add_memory() is reorganized a bit in preparation for a new
> arch_add_dev_memory() api, for now there is no functional change to the
> memory hotplug code.
Instead of the new arch_add_dev_memory call I'd just add a bool device
argument to arch_add_memory and zone_for_memory (and later the altmap
pointer aswell).
arch_add_memory is a candidate to be factored into common code,
except for s390 everything could be done with two small arch callouts.
next prev parent reply other threads:[~2015-08-15 13:33 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-13 3:50 [RFC PATCH 0/7] 'struct page' driver for persistent memory Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-13 3:50 ` [RFC PATCH 1/7] x86, mm: ZONE_DEVICE for "device memory" Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-14 21:37 ` Jerome Glisse
2015-08-14 21:37 ` Jerome Glisse
2015-08-14 21:37 ` Jerome Glisse
2015-08-14 21:52 ` Dan Williams
2015-08-14 21:52 ` Dan Williams
2015-08-14 22:06 ` Jerome Glisse
2015-08-14 22:06 ` Jerome Glisse
2015-08-14 22:06 ` Jerome Glisse
2015-08-14 22:33 ` Dan Williams
2015-08-14 22:33 ` Dan Williams
2015-08-15 2:11 ` Dan Williams
2015-08-15 2:11 ` Dan Williams
2015-08-17 21:45 ` Jerome Glisse
2015-08-17 21:45 ` Jerome Glisse
2015-08-17 21:45 ` Jerome Glisse
2015-08-18 0:46 ` Dan Williams
2015-08-18 0:46 ` Dan Williams
2015-08-18 16:55 ` Jerome Glisse
2015-08-18 16:55 ` Jerome Glisse
2015-08-18 16:55 ` Jerome Glisse
2015-08-18 17:23 ` Dan Williams
2015-08-18 17:23 ` Dan Williams
2015-08-18 19:06 ` Jerome Glisse
2015-08-18 19:06 ` Jerome Glisse
2015-08-18 19:06 ` Jerome Glisse
2015-08-20 0:49 ` Dan Williams
2015-08-20 0:49 ` Dan Williams
2015-08-15 8:59 ` Christoph Hellwig
2015-08-15 8:59 ` Christoph Hellwig
2015-08-21 15:02 ` Dan Williams
2015-08-21 15:02 ` Dan Williams
2015-08-21 15:15 ` Jerome Glisse
2015-08-21 15:15 ` Jerome Glisse
2015-08-21 15:15 ` Jerome Glisse
2015-08-15 13:33 ` Christoph Hellwig [this message]
2015-08-15 13:33 ` Christoph Hellwig
2015-08-13 3:50 ` [RFC PATCH 2/7] x86, mm: introduce struct vmem_altmap Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-13 3:50 ` [RFC PATCH 3/7] x86, mm: arch_add_dev_memory() Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-13 3:50 ` [RFC PATCH 4/7] mm: register_dev_memmap() Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-15 9:04 ` Christoph Hellwig
2015-08-15 9:04 ` Christoph Hellwig
2015-08-13 3:50 ` [RFC PATCH 5/7] libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-15 9:06 ` Christoph Hellwig
2015-08-15 9:06 ` Christoph Hellwig
2015-08-15 15:28 ` Dan Williams
2015-08-15 15:28 ` Dan Williams
2015-08-15 15:58 ` Christoph Hellwig
2015-08-15 15:58 ` Christoph Hellwig
2015-08-15 16:04 ` Dan Williams
2015-08-15 16:04 ` Dan Williams
2015-08-17 15:01 ` Christoph Hellwig
2015-08-17 15:01 ` Christoph Hellwig
2015-08-17 15:32 ` Dan Williams
2015-08-17 15:32 ` Dan Williams
2015-08-13 3:50 ` [RFC PATCH 6/7] libnvdimm, pfn: 'struct page' provider infrastructure Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-13 3:50 ` [RFC PATCH 7/7] libnvdimm, pmem: 'struct page' for pmem Dan Williams
2015-08-13 3:50 ` Dan Williams
2015-08-15 9:01 ` [RFC PATCH 0/7] 'struct page' driver for persistent memory Christoph Hellwig
2015-08-15 9:01 ` Christoph Hellwig
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