From: Nishanth Aravamudan <nacc@us.ibm.com>
To: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: Mel Gorman <mel@skynet.ie>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, rientjes@google.com,
kamezawa.hiroyu@jp.fujitsu.com, clameter@sgi.com
Subject: Re: [PATCH 6/6] Use one zonelist that is filtered by nodemask
Date: Wed, 10 Oct 2007 09:05:08 -0700 [thread overview]
Message-ID: <20071010160508.GE26472@us.ibm.com> (raw)
In-Reply-To: <1192031620.5617.39.camel@localhost>
On 10.10.2007 [11:53:40 -0400], Lee Schermerhorn wrote:
> On Tue, 2007-10-09 at 16:40 +0100, Mel Gorman wrote:
> <snip>
> > ====
> > Subject: Use specified node ID with GFP_THISNODE if available
> >
> > It had been assumed that __GFP_THISNODE meant allocating from the local
> > node and only the local node. However, users of alloc_pages_node() may also
> > specify GFP_THISNODE. In this case, only the specified node should be used.
> > This patch will allocate pages only from the requested node when GFP_THISNODE
> > is used with alloc_pages_node().
> >
> > [nacc@us.ibm.com: Detailed analysis of problem]
> > Found-by: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
> > Signed-off-by: Mel Gorman <mel@csn.ul.ie>
> >
> <snip>
>
> Mel: I applied this patch [to your v8 series--the most recent, I
> think?] and it does fix the problem. However, now I'm tripping over
> this warning in __alloc_pages_nodemask:
>
> /* Specifying both __GFP_THISNODE and nodemask is stupid. Warn user */
> WARN_ON(gfp_mask & __GFP_THISNODE);
>
> for each huge page allocated. Rather slow as my console is a virtual
> serial line and the warning includes the stack traceback.
>
> I think we want to just drop this warning, but maybe you have a tighter
> condition that you want to warn about?
Sigh, sorry Mel. I see this too on my box. I purely checked the
functionality and didn't think to check the logs, as the tests worked :/
I think it's quite clear that the WARN_ON() makes no sense now, since
alloc_pages_node() now calls __alloc_pages_nodemask().
-Nish
--
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-10-10 16:05 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-28 14:23 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v8 Mel Gorman
2007-09-28 14:23 ` [PATCH 1/6] Use zonelists instead of zones when direct reclaiming pages Mel Gorman
2007-09-28 14:24 ` [PATCH 2/6] Introduce node_zonelist() for accessing the zonelist for a GFP mask Mel Gorman
2007-09-28 14:24 ` [PATCH 3/6] Use two zonelist that are filtered by " Mel Gorman
2007-09-28 14:24 ` [PATCH 4/6] Have zonelist contains structs with both a zone pointer and zone_idx Mel Gorman
2007-10-17 3:22 ` David Rientjes
2007-09-28 14:25 ` [PATCH 5/6] Filter based on a nodemask as well as a gfp_mask Mel Gorman
2007-09-28 15:37 ` Lee Schermerhorn
2007-09-28 18:28 ` Mel Gorman
2007-09-28 18:38 ` Paul Jackson
2007-09-28 21:03 ` Lee Schermerhorn
2007-09-28 14:25 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
2007-10-09 1:11 ` Nishanth Aravamudan
2007-10-09 1:56 ` Christoph Lameter
2007-10-09 3:17 ` Nishanth Aravamudan
2007-10-09 15:40 ` Mel Gorman
2007-10-09 16:25 ` Nishanth Aravamudan
2007-10-09 18:47 ` Christoph Lameter
2007-10-09 18:12 ` Nishanth Aravamudan
2007-10-10 15:53 ` Lee Schermerhorn
2007-10-10 16:05 ` Nishanth Aravamudan [this message]
2007-10-10 16:09 ` Mel Gorman
-- strict thread matches above, loose matches on Subject: below --
2007-11-09 14:32 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v9 Mel Gorman
2007-11-09 14:34 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
2007-11-09 15:45 ` Christoph Lameter
2007-11-09 16:14 ` Mel Gorman
2007-11-09 16:19 ` Christoph Lameter
2007-11-09 16:45 ` Nishanth Aravamudan
2007-11-09 17:18 ` Lee Schermerhorn
2007-11-09 17:26 ` Christoph Lameter
2007-11-09 18:16 ` Nishanth Aravamudan
2007-11-09 18:20 ` Nishanth Aravamudan
2007-11-09 18:22 ` Christoph Lameter
2007-11-11 14:16 ` Mel Gorman
2007-11-12 19:07 ` Christoph Lameter
2007-11-09 18:14 ` Nishanth Aravamudan
2007-11-20 14:19 ` Mel Gorman
2007-11-20 15:14 ` Lee Schermerhorn
2007-11-20 16:21 ` Mel Gorman
2007-11-20 20:19 ` Christoph Lameter
2007-11-20 20:18 ` Christoph Lameter
2007-11-20 21:26 ` Mel Gorman
2007-11-20 21:33 ` Andrew Morton
2007-11-20 21:38 ` Christoph Lameter
2007-09-13 17:52 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v7 Mel Gorman
2007-09-13 17:54 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
2007-09-12 21:04 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v6 Mel Gorman
2007-09-12 21:06 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
2007-09-11 21:30 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v5 (resend) Mel Gorman
2007-09-11 21:32 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
2007-09-11 15:19 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v5 Mel Gorman
2007-09-11 15:21 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
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=20071010160508.GE26472@us.ibm.com \
--to=nacc@us.ibm.com \
--cc=Lee.Schermerhorn@hp.com \
--cc=akpm@linux-foundation.org \
--cc=clameter@sgi.com \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mel@skynet.ie \
--cc=rientjes@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
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;
as well as URLs for NNTP newsgroup(s).