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From: Oscar Salvador <osalvador@suse.de>
To: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
	akpm@linux-foundation.org, will.deacon@arm.com,
	catalin.marinas@arm.com, mhocko@suse.com,
	mgorman@techsingularity.net, james.morse@arm.com,
	mark.rutland@arm.com, cpandya@codeaurora.org,
	arunks@codeaurora.org, dan.j.williams@intel.com,
	logang@deltatee.com, pasha.tatashin@oracle.com, david@redhat.com,
	cai@lca.pw, Steven Price <steven.price@arm.com>
Subject: Re: [PATCH 2/6] arm64/mm: Enable memory hot remove
Date: Thu, 4 Apr 2019 17:19:25 +0200	[thread overview]
Message-ID: <20190404151923.2zmf25wnwevb3dlh@d104.suse.de> (raw)
In-Reply-To: <0c2b5096-a6df-b4ac-ac3b-3fec274837d3@arm.com>

On Thu, Apr 04, 2019 at 06:33:09PM +0530, Anshuman Khandual wrote:
> Sure. Will remove them from the proposed functions next time around.

Just need to make sure that the function is not calling directly or indirectly
another __meminit function, then it is safe to remove it.

E.g: 

sparse_add_one_section() is wrapped around CONFIG_MEMORY_HOTPLUG, but the
__meminit must stay because it calls sparse_index_init(),
sparse_init_one_section() and sparse_mem_map_populate(), all three marked as
__meminit because they are also used out of hotplug scope, during early boot.

-- 
Oscar Salvador
SUSE L3

  reply	other threads:[~2019-04-04 15:19 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-03  4:30 [PATCH 0/6] arm64/mm: Enable memory hot remove and ZONE_DEVICE Anshuman Khandual
2019-04-03  4:30 ` [PATCH 1/6] arm64/mm: Enable sysfs based memory hot add interface Anshuman Khandual
2019-04-03  8:20   ` David Hildenbrand
2019-04-03 13:12     ` Robin Murphy
2019-04-04  5:21       ` Anshuman Khandual
2019-04-04  5:25     ` Anshuman Khandual
2019-04-04  8:49       ` David Hildenbrand
2019-04-03  4:30 ` [PATCH 2/6] arm64/mm: Enable memory hot remove Anshuman Khandual
2019-04-03 12:37   ` Robin Murphy
2019-04-03 13:15     ` Steven Price
2019-04-04  6:51       ` Anshuman Khandual
2019-04-04  5:39     ` Anshuman Khandual
2019-04-04 11:58       ` Oscar Salvador
2019-04-04 13:03         ` Anshuman Khandual
2019-04-04 15:19           ` Oscar Salvador [this message]
2019-04-03 17:32   ` Logan Gunthorpe
2019-04-03 17:57     ` Robin Murphy
2019-04-04  8:23       ` Anshuman Khandual
2019-04-04  7:07     ` Anshuman Khandual
2019-04-04  9:16       ` Steven Price
2019-04-03  4:30 ` [PATCH 3/6] arm64/mm: Enable struct page allocation from device memory Anshuman Khandual
2019-04-03  4:30 ` [PATCH 4/6] mm/hotplug: Reorder arch_remove_memory() call in __remove_memory() Anshuman Khandual
2019-04-03  8:45   ` Oscar Salvador
2019-04-03  9:17   ` Michal Hocko
2019-04-04  8:32     ` Anshuman Khandual
2019-04-03  9:30   ` David Hildenbrand
2019-04-03  4:30 ` [PATCH 5/6] mm/memremap: Rename and consolidate SECTION_SIZE Anshuman Khandual
2019-04-03  9:26   ` Michal Hocko
2019-04-03  9:30   ` David Hildenbrand
2019-04-03  4:30 ` [PATCH 6/6] arm64/mm: Enable ZONE_DEVICE Anshuman Khandual
2019-04-03 13:58   ` Robin Murphy
2019-04-03 16:07     ` Jerome Glisse
2019-04-04  5:03       ` Anshuman Khandual
2019-04-04  4:42     ` Anshuman Khandual
2019-04-04  5:04       ` Dan Williams
2019-04-04  9:46         ` Robin Murphy
2019-04-07 22:11           ` Dan Williams
2019-04-08  4:03             ` Ira Weiny
2019-04-08  6:03               ` Anshuman Khandual
2019-04-03 18:08 ` [PATCH 0/6] arm64/mm: Enable memory hot remove and ZONE_DEVICE Dan Williams
2019-04-04 13:11   ` Anshuman Khandual
2019-04-04  9:46 ` [RFC 1/2] mm/vmemmap: Enable vmem_altmap based base page mapping for vmemmap Anshuman Khandual
2019-04-04  9:46   ` [RFC 2/2] arm64/mm: Enable ZONE_DEVICE for all page configs Anshuman Khandual

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