From: Linus Torvalds <torvalds@linux-foundation.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Mel Gorman <mgorman@suse.de>, Linux-X86 <x86@kernel.org>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Ingo Molnar <mingo@kernel.org>,
Steven Noonan <steven@uplinklabs.net>,
Rik van Riel <riel@redhat.com>,
David Vrabel <david.vrabel@citrix.com>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Dave Hansen <dave.hansen@intel.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/5] Use an alternative to _PAGE_PROTNONE for _PAGE_NUMA v2
Date: Tue, 8 Apr 2014 08:22:15 -0700 [thread overview]
Message-ID: <CA+55aFwc6Jdf+As9RJ3wJWuOGEGmiaYWNa-jp2aCb9=ZiiqV+A@mail.gmail.com> (raw)
In-Reply-To: <53440A5D.6050301@zytor.com>
On Tue, Apr 8, 2014 at 7:40 AM, H. Peter Anvin <hpa@zytor.com> wrote:
>
> David, is your patchset going to be pushed in this merge window as expected?
Apparently aiming for 3.16 right now.
> That being said, these bits are precious, and if this ends up being a
> case where "only Xen needs another bit" once again then Xen should
> expect to get kicked to the curb at a moment's notice.
Quite frankly, I don't think it's a Xen-only issue. The code was hard
to figure out even without the Xen issues. For example, nobody ever
explained to me why it
(a) could be the same as PROTNONE on x86
(b) could not be the same as PROTNONE in general
I think the best explanation for it so far was from the little voices
in my head that sang "It's a kind of Magic", and that isn't even
remotely the best song by Queen.
Linus
--
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:[~2014-04-08 15:22 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-08 13:09 [RFC PATCH 0/5] Use an alternative to _PAGE_PROTNONE for _PAGE_NUMA v2 Mel Gorman
2014-04-08 13:09 ` [PATCH 1/5] x86: Require x86-64 for automatic NUMA balancing Mel Gorman
2014-04-08 13:09 ` [PATCH 2/5] x86: Define _PAGE_NUMA by reusing software bits on the PMD and PTE levels Mel Gorman
2014-04-08 13:09 ` [PATCH 3/5] mm: Allow FOLL_NUMA on FOLL_FORCE Mel Gorman
2014-04-08 13:09 ` [PATCH 4/5] mm: use paravirt friendly ops for NUMA hinting ptes Mel Gorman
2014-04-08 17:21 ` David Vrabel
2014-04-15 10:27 ` David Vrabel
2014-04-15 14:44 ` Mel Gorman
2014-04-08 13:09 ` [PATCH 5/5] x86: Allow Xen to enable NUMA_BALANCING Mel Gorman
2014-04-08 14:40 ` [RFC PATCH 0/5] Use an alternative to _PAGE_PROTNONE for _PAGE_NUMA v2 H. Peter Anvin
2014-04-08 15:22 ` Linus Torvalds [this message]
2014-04-08 16:04 ` H. Peter Anvin
2014-04-08 16:12 ` Peter Zijlstra
2014-04-08 16:46 ` Mel Gorman
2014-04-08 17:01 ` Linus Torvalds
2014-04-08 18:51 ` Mel Gorman
2014-04-08 18:55 ` Linus Torvalds
2014-04-08 19:06 ` Mel Gorman
2014-04-08 19:08 ` Rik van Riel
2014-04-08 17:03 ` Mel Gorman
2014-04-08 17:30 ` Peter Zijlstra
2014-04-08 17:41 ` Linus Torvalds
2014-04-08 18:16 ` Cyrill Gorcunov
2014-04-09 6:21 ` Ingo Molnar
2014-04-09 23:34 ` H. Peter Anvin
2014-04-10 0:12 ` Linus Torvalds
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='CA+55aFwc6Jdf+As9RJ3wJWuOGEGmiaYWNa-jp2aCb9=ZiiqV+A@mail.gmail.com' \
--to=torvalds@linux-foundation.org \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=dave.hansen@intel.com \
--cc=david.vrabel@citrix.com \
--cc=gorcunov@gmail.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@suse.de \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=riel@redhat.com \
--cc=srikar@linux.vnet.ibm.com \
--cc=steven@uplinklabs.net \
--cc=x86@kernel.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 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).