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From: Michal Hocko <>
To: Andrew Morton <>
Cc:, LKML <>,
	David Hildenbrand <>,
	Hugh Dickins <>, Jan Kara <>,
	"Kirill A. Shutemov" <>,
	Michal Hocko <>,
	Oscar Salvador <>,
	Pavel Tatashin <>,
	William Kucharski <>
Subject: [PATCH 0/3] few memory offlining enhancements
Date: Tue, 11 Dec 2018 15:27:38 +0100
Message-ID: <> (raw)

This has been posted as an RFC [1]. There was a general agreement for
these patches. I hope I have addressed all the review feedback.

Original cover:
I have been chasing memory offlining not making progress recently. On
the way I have noticed few weird decisions in the code. The migration
itself is restricted without a reasonable justification and the retry
loop around the migration is quite messy. This is addressed by patch 1
and patch 2.

Patch 3 is targeting on the faultaround code which has been a hot
candidate for the initial issue reported upstream [2] and that I am
debugging internally. It turned out to be not the main contributor
in the end but I believe we should address it regardless. See the patch
description for more details.


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Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-11 14:27 Michal Hocko [this message]
2018-12-11 14:27 ` [PATCH 1/3] mm, memory_hotplug: try to migrate full pfn range Michal Hocko
2018-12-12  1:12   ` Wei Yang
2018-12-11 14:27 ` [PATCH 2/3] mm, memory_hotplug: deobfuscate migration part of offlining Michal Hocko
2018-12-11 14:27 ` [PATCH 3/3] mm, fault_around: do not take a reference to a locked page Michal Hocko

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