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From: Christopher Lameter <cl@linux.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: "Luck, Tony" <tony.luck@intel.com>, Meelis Roos <mroos@linux.ee>,
	Mel Gorman <mgorman@techsingularity.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	"linux-parisc@vger.kernel.org" <linux-parisc@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
	"Yu, Fenghua" <fenghua.yu@intel.com>,
	"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>
Subject: Re: DISCONTIGMEM is deprecated
Date: Tue, 30 Apr 2019 13:40:59 +0000	[thread overview]
Message-ID: <0100016a6e7a22d8-dcd24705-508f-4acc-8883-e5d61f4c0fa4-000000@email.amazonses.com> (raw)
In-Reply-To: <20190429200957.GB27158@infradead.org>

On Mon, 29 Apr 2019, Christoph Hellwig wrote:

> So maybe it it time to mark SN2 broken and see if anyone screams?
>
> Without SN2 the whole machvec mess could basically go away - the
> only real difference between the remaining machvecs is which iommu
> if any we set up.

SPARSEMEM with VMEMMAP was developed to address these
issues and allow one mapping scheme across the different platforms.

You do not need DISCONTIGMEM support for SN2. And as far as I know (from a
decade ago ok....) the distributions were using VMEMMAP instead.



  reply	other threads:[~2019-04-30 13:41 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-19  9:43 [PATCH] mm: Do not boost watermarks to avoid fragmentation for the DISCONTIG memory model Mel Gorman
2019-04-19 14:05 ` DISCONTIGMEM is deprecated Matthew Wilcox
2019-04-19 14:28   ` Mel Gorman
2019-04-19 20:08     ` Helge Deller
2019-05-05  8:53       ` Mike Rapoport
2019-04-21  6:38   ` Mike Rapoport
2019-04-21 13:26     ` Matthew Wilcox
2019-04-21 21:16       ` Mel Gorman
2019-04-23  7:13         ` Christoph Hellwig
2019-04-24 11:33           ` Mike Rapoport
2019-04-24 12:21             ` Mel Gorman
2019-04-28  8:11             ` Christoph Hellwig
2019-05-01 20:46               ` Mike Rapoport
2019-04-22 17:29   ` Christopher Lameter
2019-04-23 16:49     ` Meelis Roos
2019-04-28  8:13       ` Christoph Hellwig
2019-04-29 16:58         ` Luck, Tony
2019-04-29 20:09           ` Christoph Hellwig
2019-04-30 13:40             ` Christopher Lameter [this message]
2019-04-23  6:33 ` [PATCH] mm: Do not boost watermarks to avoid fragmentation for the DISCONTIG memory model Vlastimil Babka

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