From: Michael Ellerman <mpe@ellerman•id.au>
To: Nishanth Aravamudan <nacc@linux•vnet.ibm.com>
Cc: Raghavendra K T <raghavendra.kt@linux•vnet.ibm.com>,
Paul Mackerras <paulus@samba•org>,
Anton Blanchard <anton@samba•org>,
David Rientjes <rientjes@google•com>, Tejun Heo <tj@kernel•org>,
linuxppc-dev@lists•ozlabs.org
Subject: Re: [PATCH v2] powerpc/numa: set node_possible_map to only node_online_map during boot
Date: Tue, 10 Mar 2015 10:55:05 +1100 [thread overview]
Message-ID: <1425945305.19022.4.camel@ellerman.id.au> (raw)
In-Reply-To: <20150306052750.GA9576@linux.vnet.ibm.com>
On Thu, 2015-03-05 at 21:27 -0800, Nishanth Aravamudan wrote:
> diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
> index 0257a7d659ef..0c1716cd271f 100644
> --- a/arch/powerpc/mm/numa.c
> +++ b/arch/powerpc/mm/numa.c
> @@ -958,6 +958,13 @@ void __init initmem_init(void)
>
> memblock_dump_all();
>
> + /*
> + * Reduce the possible NUMA nodes to the online NUMA nodes,
> + * since we do not support node hotplug. This ensures that we
> + * lower the maximum NUMA node ID to what is actually present.
> + */
> + node_possible_map = node_online_map;
That looks nice, but is it generating what we want?
ie. is the content of node_online_map being *copied* into node_possible_map.
Or are we changing node_possible_map to point at node_online_map?
cheers
next prev parent reply other threads:[~2015-03-09 23:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-05 18:05 [RFC PATCH] powerpc/numa: reset node_possible_map to only node_online_map Nishanth Aravamudan
2015-03-05 21:16 ` David Rientjes
2015-03-05 21:48 ` Michael Ellerman
2015-03-05 21:58 ` David Rientjes
2015-03-05 22:08 ` Tejun Heo
2015-03-05 22:18 ` Tejun Heo
2015-03-05 23:21 ` Nishanth Aravamudan
2015-03-05 23:24 ` Tejun Heo
2015-03-05 23:20 ` Nishanth Aravamudan
2015-03-05 23:17 ` Nishanth Aravamudan
2015-03-05 23:15 ` Nishanth Aravamudan
2015-03-05 23:29 ` David Rientjes
2015-03-06 5:27 ` [PATCH v2] powerpc/numa: set node_possible_map to only node_online_map during boot Nishanth Aravamudan
2015-03-06 11:29 ` Raghavendra K T
2015-03-09 23:55 ` Michael Ellerman [this message]
2015-03-10 23:50 ` [PATCH v3] " Nishanth Aravamudan
2015-03-05 22:13 ` [RFC PATCH] powerpc/numa: reset node_possible_map to only node_online_map Tejun Heo
2015-03-05 23:27 ` Nishanth Aravamudan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1425945305.19022.4.camel@ellerman.id.au \
--to=mpe@ellerman$(echo .)id.au \
--cc=anton@samba$(echo .)org \
--cc=linuxppc-dev@lists$(echo .)ozlabs.org \
--cc=nacc@linux$(echo .)vnet.ibm.com \
--cc=paulus@samba$(echo .)org \
--cc=raghavendra.kt@linux$(echo .)vnet.ibm.com \
--cc=rientjes@google$(echo .)com \
--cc=tj@kernel$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox