From: Andrew Morton <akpm@linux-foundation.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: kexec@lists.infradead.org,
Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v2] Add the values related to buddy system for filtering free pages.
Date: Wed, 19 Dec 2012 17:00:38 -0800 [thread overview]
Message-ID: <20121219170038.f7b260c3.akpm@linux-foundation.org> (raw)
In-Reply-To: <878v8ty200.fsf@xmission.com>
On Wed, 19 Dec 2012 16:57:03 -0800
ebiederm@xmission.com (Eric W. Biederman) wrote:
> Andrew Morton <akpm@linux-foundation.org> writes:
>
> > Is there any way in which we can move some of this logic into the
> > kernel? In this case, add some kernel code which uses PageBuddy() on
> > behalf of makedumpfile, rather than replicating the PageBuddy() logic
> > in userspace?
>
> All that exists when makedumpfile runs is a core file. So it would have
> to be something like a share library that builds with the kernel and
> then makedumpfile loads.
Can we omit free pages from that core file?
And/or add a section to that core file which flags free pages?
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>,
linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
linux-mm@kvack.org
Subject: Re: [PATCH v2] Add the values related to buddy system for filtering free pages.
Date: Wed, 19 Dec 2012 17:00:38 -0800 [thread overview]
Message-ID: <20121219170038.f7b260c3.akpm@linux-foundation.org> (raw)
In-Reply-To: <878v8ty200.fsf@xmission.com>
On Wed, 19 Dec 2012 16:57:03 -0800
ebiederm@xmission.com (Eric W. Biederman) wrote:
> Andrew Morton <akpm@linux-foundation.org> writes:
>
> > Is there any way in which we can move some of this logic into the
> > kernel? In this case, add some kernel code which uses PageBuddy() on
> > behalf of makedumpfile, rather than replicating the PageBuddy() logic
> > in userspace?
>
> All that exists when makedumpfile runs is a core file. So it would have
> to be something like a share library that builds with the kernel and
> then makedumpfile loads.
Can we omit free pages from that core file?
And/or add a section to that core file which flags free pages?
--
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>
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: ebiederm@xmission.com (Eric W. Biederman)
Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>,
linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
linux-mm@kvack.org
Subject: Re: [PATCH v2] Add the values related to buddy system for filtering free pages.
Date: Wed, 19 Dec 2012 17:00:38 -0800 [thread overview]
Message-ID: <20121219170038.f7b260c3.akpm@linux-foundation.org> (raw)
In-Reply-To: <878v8ty200.fsf@xmission.com>
On Wed, 19 Dec 2012 16:57:03 -0800
ebiederm@xmission.com (Eric W. Biederman) wrote:
> Andrew Morton <akpm@linux-foundation.org> writes:
>
> > Is there any way in which we can move some of this logic into the
> > kernel? In this case, add some kernel code which uses PageBuddy() on
> > behalf of makedumpfile, rather than replicating the PageBuddy() logic
> > in userspace?
>
> All that exists when makedumpfile runs is a core file. So it would have
> to be something like a share library that builds with the kernel and
> then makedumpfile loads.
Can we omit free pages from that core file?
And/or add a section to that core file which flags free pages?
next prev parent reply other threads:[~2012-12-20 1:00 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-10 1:39 [PATCH v2] Add the values related to buddy system for filtering free pages Atsushi Kumagai
2012-12-10 1:39 ` Atsushi Kumagai
2012-12-10 13:17 ` Vivek Goyal
2012-12-10 13:17 ` Vivek Goyal
2012-12-17 15:02 ` Vivek Goyal
2012-12-17 15:02 ` Vivek Goyal
2012-12-20 0:18 ` Andrew Morton
2012-12-20 0:18 ` Andrew Morton
2012-12-20 0:18 ` Andrew Morton
2012-12-20 0:57 ` Eric W. Biederman
2012-12-20 0:57 ` Eric W. Biederman
2012-12-20 0:57 ` Eric W. Biederman
2012-12-20 1:00 ` Andrew Morton [this message]
2012-12-20 1:00 ` Andrew Morton
2012-12-20 1:00 ` Andrew Morton
2012-12-20 1:20 ` Eric W. Biederman
2012-12-20 1:20 ` Eric W. Biederman
2012-12-20 1:20 ` Eric W. Biederman
2012-12-20 2:21 ` Atsushi Kumagai
2012-12-20 2:21 ` Atsushi Kumagai
2012-12-20 2:21 ` Atsushi Kumagai
2012-12-20 3:02 ` Hatayama, Daisuke
2012-12-20 3:02 ` Hatayama, Daisuke
2012-12-20 3:02 ` Hatayama, Daisuke
2012-12-21 2:00 ` Eric W. Biederman
2012-12-21 2:00 ` Eric W. Biederman
2012-12-21 2:00 ` Eric W. Biederman
2012-12-27 8:35 ` Atsushi Kumagai
2012-12-27 8:35 ` Atsushi Kumagai
2012-12-27 8:35 ` Atsushi Kumagai
2013-02-07 12:29 ` Lisa Mitchell
2013-02-07 12:29 ` Lisa Mitchell
2013-02-07 12:29 ` Lisa Mitchell
2013-02-08 2:45 ` Atsushi Kumagai
2013-02-08 2:45 ` Atsushi Kumagai
2013-02-08 2:45 ` Atsushi Kumagai
2013-02-08 14:59 ` Mitchell, Lisa (MCLinux in Fort Collins)
2013-02-08 14:59 ` Mitchell, Lisa (MCLinux in Fort Collins)
2013-02-08 14:59 ` Mitchell, Lisa (MCLinux in Fort Collins)
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=20121219170038.f7b260c3.akpm@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=ebiederm@xmission.com \
--cc=kexec@lists.infradead.org \
--cc=kumagai-atsushi@mxc.nes.nec.co.jp \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.