From: Michal Hocko <mhocko@suse.com>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>,
Andrew Morton <akpm@linux-foundation.org>,
Oscar Salvador <osalvador@suse.de>,
"Michael S. Tsirkin" <mst@redhat.com>,
Alexander Duyck <alexanderduyck@fb.com>,
Minchan Kim <minchan@kernel.org>,
David Hildenbrand <david@redhat.com>,
Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 resend] mm/memory_hotplug: Make unpopulated zones PCP structures unreachable during hot remove
Date: Tue, 13 Apr 2021 12:16:30 +0200 [thread overview]
Message-ID: <YHVvfv8PtRcRgOcl@dhcp22.suse.cz> (raw)
In-Reply-To: <b1243b7b-fa4c-496f-5bfc-c83c7cee81cf@suse.cz>
On Tue 13-04-21 11:36:08, Vlastimil Babka wrote:
[...]
> AFAIK even Oscar's work on using the node to self-contain its own structures is
> only applicable to struct pages, not percpu allocations?
Correct. Teaching pcp storage on movable zone sounds like a large
undertaking to me. Not sure this is worth it TBH. Even an idea of any
pcp access synchronization with memory hotplug makes for a decent headache.
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2021-04-13 10:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 12:08 Mel Gorman
2021-04-12 12:12 ` David Hildenbrand
2021-04-12 12:40 ` Vlastimil Babka
2021-04-12 14:08 ` Mel Gorman
2021-04-12 14:12 ` David Hildenbrand
2021-04-12 15:27 ` Mel Gorman
2021-04-12 16:02 ` David Hildenbrand
2021-04-13 9:36 ` Vlastimil Babka
2021-04-13 9:49 ` Mel Gorman
2021-04-13 10:16 ` Michal Hocko [this message]
2021-04-13 6:44 ` Michal Hocko
2021-04-13 6:40 ` Michal Hocko
2021-04-14 7:18 ` Oscar Salvador
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