From: Ingo Molnar <mingo@elte.hu>
To: Alex Nixon <alex.nixon@citrix.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH] Xen: Fix pte unpin BUG when !CONFIG_SMP
Date: Tue, 9 Sep 2008 13:27:44 +0200 [thread overview]
Message-ID: <20080909112744.GA9762@elte.hu> (raw)
In-Reply-To: <1220959508-13806-1-git-send-email-alex.nixon@citrix.com>
* Alex Nixon <alex.nixon@citrix.com> wrote:
> We still need to pin PTEs, even if there are no PTE locks. Otherwise we'll BUG whenever there aren't
> PTE locks (i.e. whenever NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS), as we try to unpin PTEs which were
> never pinned in the first place.
>
> Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
applied to tip/x86/xen, thanks Alex.
Ingo
next prev parent reply other threads:[~2008-09-09 11:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-09 11:25 [PATCH] Xen: Fix pte unpin BUG when !CONFIG_SMP Alex Nixon
2008-09-09 11:27 ` Ingo Molnar [this message]
2008-09-09 18:05 ` Jeremy Fitzhardinge
2008-09-09 19:21 ` Alex Nixon
2008-09-09 20:37 ` Jeremy Fitzhardinge
2008-09-09 22:26 ` Alex Nixon
2008-09-09 22:28 ` Jeremy Fitzhardinge
2008-09-09 22:43 ` [PATCH 1/2] mm: define USE_SPLIT_PTLOCKS rather than repeating expression Jeremy Fitzhardinge
2008-09-10 11:28 ` Hugh Dickins
2008-09-09 22:43 ` [PATCH 2/2] xen: fix pinning when not using split pte locks Jeremy Fitzhardinge
2008-09-09 22:53 ` Andrew Morton
2008-09-09 23:29 ` Jeremy Fitzhardinge
2008-09-10 8:18 ` Ingo Molnar
2008-09-09 23:22 ` Alex Nixon
2008-09-09 23:32 ` Jeremy Fitzhardinge
2008-09-10 8:10 ` Ingo Molnar
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