From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Reza Arbab <arbab@linux.vnet.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, John Allen <jallen@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org,
Nathan Fontenot <nfont@linux.vnet.ibm.com>
Subject: Re: powerpc/mm: allow memory hotplug into an offline node
Date: Wed, 1 Feb 2017 12:05:31 +1100 (AEDT) [thread overview]
Message-ID: <3vClL33fB1z9t9b@ozlabs.org> (raw)
In-Reply-To: <1479314703-18989-1-git-send-email-arbab@linux.vnet.ibm.com>
On Wed, 2016-11-16 at 16:45:03 UTC, Reza Arbab wrote:
> Relax the check preventing us from hotplugging into an offline node.
>
> This limitation was added in commit 482ec7c403d2 ("[PATCH] powerpc numa:
> Support sparse online node map") to prevent adding resources to an
> uninitialized node.
>
> These days, there is no harm in doing so. The addition will actually
> cause the node to be initialized and onlined; add_memory_resource()
> calls hotadd_new_pgdat() (if necessary) and node_set_online().
>
> Cc: Balbir Singh <bsingharora@gmail.com>
> Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
> Cc: John Allen <jallen@linux.vnet.ibm.com>
> Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/2a8628d41602dc9f988af051a657ee
cheers
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next prev parent reply other threads:[~2017-02-01 1:05 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-15 23:44 [RESEND][v1 0/3] Support memory cgroup hotplug Balbir Singh
2016-11-15 23:44 ` [RESEND] [PATCH v1 1/3] Add basic infrastructure for memcg hotplug support Balbir Singh
2016-11-16 9:01 ` Vladimir Davydov
2016-11-17 0:28 ` Balbir Singh
2016-11-21 8:36 ` Vladimir Davydov
2016-11-22 0:17 ` Balbir Singh
2016-11-15 23:45 ` [RESEND] [PATCH v1 2/3] Move from all possible nodes to online nodes Balbir Singh
2016-11-15 23:45 ` [RESEND] [PATCH v1 3/3] powerpc: fix node_possible_map limitations Balbir Singh
2016-11-16 16:40 ` Reza Arbab
2016-11-16 16:45 ` [PATCH] powerpc/mm: allow memory hotplug into an offline node Reza Arbab
2017-02-01 1:05 ` Michael Ellerman [this message]
2016-11-21 14:03 ` [RESEND][v1 0/3] Support memory cgroup hotplug Michal Hocko
2016-11-22 0:16 ` Balbir Singh
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