linux-kernel - Re: [RFC GIT PULL] x86/pat changes for v2.6.34

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Message-Id: <1267468108.16916.937.camel@localhost.localdomain>
Date:	Mon, 01 Mar 2010 10:28:28 -0800
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC GIT PULL] x86/pat changes for v2.6.34

On Sat, 2010-02-27 at 08:36 -0800, Ingo Molnar wrote:
> Linus,
> 
> Please pull the latest x86-pat-for-linus git tree from:
> 
>    git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-pat-for-linus
> 
> Please have a look at the lib/rbtree.c changes. The rebalancing changes ought
> to not impact performance - rb_erase() possibly in a small way. Should this
> perhaps be done via a separate API entry, instead of modifying existing rbtree
> code?
> 
> out-of-topic modifications in x86-pat-for-linus:
> ------------------------------------------------
> include/linux/rbtree.h             # 17d9ddc: rbtree: Add support for augmented
> lib/rbtree.c                       # 17d9ddc: rbtree: Add support for augmented
> 
>  Thanks,
> 
>         Ingo
> 
> ------------------>
> Pallipadi, Venkatesh (2):
>       rbtree: Add support for augmented rbtrees
>       x86, pat: Migrate to rbtree only backend for pat memtype management
> 
> venkatesh.pallipadi@...el.com (1):
>       x86, pat: Preparatory changes in pat.c for bigger rbtree change


There are few dependencies with this patchset.

These patches should go in before "Add support for augmented rbtrees":

"btrfs: use RB_ROOT to intialize rb_trees instead of settingrb_node to
NULL"
http://lkml.indiana.edu/hypermail/linux/kernel/1002.2/02946.html

"[patch 0/3] Fixup rb_root initializations to use RB_ROOT"
http://lkml.indiana.edu/hypermail/linux/kernel/1002.2/03037.html


And this is an x86 bug fix on top of "Migrate to rbtree only backend for
pat memtype management"
http://lkml.indiana.edu/hypermail/linux/kernel/1002.3/00346.html


Thanks,
Venki

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