From: Dave Hansen <haveblue@us.ibm.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <clameter@sgi.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/11] Add __GFP_MOVABLE flag and update callers
Date: Tue, 21 Nov 2006 15:51:36 -0800 [thread overview]
Message-ID: <1164153096.9131.74.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.64.0611212340480.11982@skynet.skynet.ie>
On Tue, 2006-11-21 at 23:43 +0000, Mel Gorman wrote:
> On Tue, 21 Nov 2006, Christoph Lameter wrote:
> > Are GFP_HIGHUSER allocations always movable? It would reduce the size of
> > the patch if this would be added to GFP_HIGHUSER.
>
> No, they aren't. Page tables allocated with HIGHPTE are currently not
> movable for example. A number of drivers (infiniband for example) also use
> __GFP_HIGHMEM that are not movable.
I think Christoph was saying that it might reduce the size of the patch
to include it by _default_. You could always go to the
weird^Wspecialized users and mask the bits back off.
We probably also need to start getting a nice list of those users which
are HIGH but not MOVABLE. This would provide that by default, I think.
-- Dave
--
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:[~2006-11-21 23:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-21 22:50 [PATCH 0/11] Avoiding fragmentation with page clustering v27 Mel Gorman
2006-11-21 22:50 ` [PATCH 1/11] Add __GFP_MOVABLE flag and update callers Mel Gorman
2006-11-21 23:30 ` Christoph Lameter
2006-11-21 23:43 ` Mel Gorman
2006-11-21 23:51 ` Dave Hansen [this message]
2006-11-22 0:44 ` Linus Torvalds
2006-11-23 16:36 ` Mel Gorman
2006-11-23 17:11 ` Linus Torvalds
2006-11-24 10:44 ` Mel Gorman
2006-11-24 19:57 ` Hugh Dickins
2006-11-24 20:13 ` Mel Gorman
2006-11-24 21:06 ` Hugh Dickins
2006-11-25 11:47 ` Mel Gorman
2006-11-25 19:01 ` Linus Torvalds
2006-11-26 0:44 ` Hugh Dickins
2006-11-27 16:32 ` Mel Gorman
2006-11-27 17:28 ` Christoph Lameter
2006-11-27 19:48 ` Add __GFP_MOVABLE for callers to flag allocations that may be migrated Mel Gorman
2006-11-24 17:59 ` [PATCH 1/11] Add __GFP_MOVABLE flag and update callers Christoph Lameter
2006-11-24 18:11 ` Linus Torvalds
2006-11-24 20:04 ` Mel Gorman
2006-11-22 2:25 ` Christoph Lameter
2006-11-23 15:00 ` Mel Gorman
2006-11-21 22:51 ` [PATCH 2/11] Split the free lists for movable and unmovable allocations Mel Gorman
2006-11-21 22:51 ` [PATCH 3/11] Choose pages from the per-cpu list based on migration type Mel Gorman
2006-11-21 22:51 ` [PATCH 4/11] Add a configure option for page clustering Mel Gorman
2006-11-21 22:52 ` [PATCH 5/11] Drain per-cpu lists when high-order allocations fail Mel Gorman
2006-11-21 22:52 ` [PATCH 6/11] Move free pages between lists on steal Mel Gorman
2006-11-21 22:52 ` [PATCH 7/11] Mark short-lived and reclaimable kernel allocations Mel Gorman
2006-11-21 22:53 ` [PATCH 8/11] [DEBUG] Add statistics Mel Gorman
2006-11-21 22:53 ` [PATCH 9/11] Add a bitmap that is used to track flags affecting a block of pages Mel Gorman
2006-11-21 22:53 ` [PATCH 10/11] Remove dependency on page->flag bits Mel Gorman
2006-11-21 22:54 ` [PATCH 11/11] Use pageblock flags for page clustering 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=1164153096.9131.74.camel@localhost.localdomain \
--to=haveblue@us.ibm.com \
--cc=clameter@sgi.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mel@csn.ul.ie \
/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