From: Balbir Singh <bsingharora@gmail.com>
To: Oliver O'Halloran <oohall@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: arbab@linux.vnet.ibm.com, linux-nvdimm@lists.01.org
Subject: Re: [PATCH 5/9] powerpc/vmemmap: Add altmap support
Date: Wed, 12 Apr 2017 10:24:21 +1000 [thread overview]
Message-ID: <1491956661.8380.9.camel@gmail.com> (raw)
In-Reply-To: <20170411174233.21902-6-oohall@gmail.com>
On Wed, 2017-04-12 at 03:42 +1000, Oliver O'Halloran wrote:
> Adds support to powerpc for the altmap feature of ZONE_DEVICE memory. An
> altmap is a driver provided region that is used to provide the backing
> storage for the struct pages of ZONE_DEVICE memory. In situations where
> large amount of ZONE_DEVICE memory is being added to the system the
> altmap reduces pressure on main system memory by allowing the mm/
> metadata to be stored on the device itself rather in main memory.
>
> Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
> ---
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
next prev parent reply other threads:[~2017-04-12 0:24 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-11 17:42 ZONE_DEVICE and pmem API support for powerpc Oliver O'Halloran
2017-04-11 17:42 ` [PATCH 1/9] mm/huge_memory: Use zap_deposited_table() more Oliver O'Halloran
2017-04-12 5:44 ` Aneesh Kumar K.V
2017-04-18 21:35 ` David Rientjes
2017-04-11 17:42 ` [PATCH 2/9] mm/huge_memory: Deposit a pgtable for DAX PMD faults when required Oliver O'Halloran
2017-04-12 5:51 ` Aneesh Kumar K.V
2017-04-11 17:42 ` [PATCH 3/9] powerpc/mm: Add _PAGE_DEVMAP for ppc64 Oliver O'Halloran
2017-04-12 0:19 ` Stephen Rothwell
2017-04-12 3:07 ` Aneesh Kumar K.V
2017-04-13 5:20 ` Aneesh Kumar K.V
2017-04-11 17:42 ` [PATCH 4/9] powerpc/mm: Reshuffle vmemmap_free() Oliver O'Halloran
2017-04-12 0:33 ` Stephen Rothwell
2017-04-11 17:42 ` [PATCH 5/9] powerpc/vmemmap: Add altmap support Oliver O'Halloran
2017-04-12 0:24 ` Balbir Singh [this message]
2017-04-11 17:42 ` [PATCH 6/9] powerpc, mm: Enable ZONE_DEVICE on powerpc Oliver O'Halloran
2017-04-12 0:25 ` Balbir Singh
2017-04-12 0:43 ` Stephen Rothwell
2017-04-12 2:03 ` Michael Ellerman
2017-04-11 17:42 ` [PATCH 7/9] powerpc/mm: Wire up ioremap_cache Oliver O'Halloran
2017-04-23 11:53 ` [7/9] " Michael Ellerman
2017-04-11 17:42 ` [PATCH 8/9] powerpc/mm: Wire up hpte_removebolted for powernv Oliver O'Halloran
2017-04-11 22:50 ` Anton Blanchard
2017-04-12 0:18 ` Stephen Rothwell
2017-04-12 3:30 ` Rashmica Gupta
2017-04-12 1:53 ` Balbir Singh
2017-04-13 4:21 ` Oliver O'Halloran
2017-04-13 10:10 ` Michael Ellerman
2017-04-11 17:42 ` [PATCH 9/9] powerpc: Add pmem API support Oliver O'Halloran
2017-04-11 18:22 ` ZONE_DEVICE and pmem API support for powerpc Dan Williams
2017-04-12 9:14 ` Oliver O'Halloran
2017-04-12 1:10 ` Stephen Rothwell
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