linux-kernel - Re: [tip:x86/mm] x86/mm/cpa: Fix populate_pgd(): Stop trying to deallocate failed PUDs

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Date:	Sat, 23 Jul 2016 21:14:24 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Borislav Petkov <bp@...en8.de>, Toshi Kani <toshi.kani@...com>,
	Josh Poimboeuf <jpoimboe@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Brian Gerst <brgerst@...il.com>,
	"Luis R. Rodriguez" <mcgrof@...e.com>, krinkin.m.u@...il.com,
	Peter Anvin <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Lutomirski <luto@...nel.org>,
	Valdis Kletnieks <Valdis.Kletnieks@...edu>,
	"linux-tip-commits@...r.kernel.org" 
	<linux-tip-commits@...r.kernel.org>
Subject: Re: [tip:x86/mm] x86/mm/cpa: Fix populate_pgd(): Stop trying to
 deallocate failed PUDs


* Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> On Sat, Jul 23, 2016 at 4:46 PM, tip-bot for Andy Lutomirski
> <tipbot@...or.com> wrote:
> >
> > Fixing this directly is difficult or impossible because of the awful
> > state of Linux's page table accessors.
> 
> Quite frankly, this part of the message is misleading and wrong.

Fair enough - I amended the commit and pushed out the new version.

Thanks,

	Ingo