From: David Vrabel <david.vrabel@citrix.com>
To: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>,
"Daniel De Graaf" <dgdegra@tycho.nsa.gov>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
David Vrabel <david.vrabel@citrix.com>,
xen-devel <xen-devel@lists.xen.org>
Subject: Re: race condition in xen-gntdev
Date: Tue, 30 Jun 2015 16:26:45 +0100 [thread overview]
Message-ID: <5592B535.9070802@citrix.com> (raw)
In-Reply-To: <20150626012824.GD967@mail-itl>
On 26/06/15 02:28, Marek Marczykowski-Górecki wrote:
>
> From b876e14888bdafa112c3265e6420543fa74aa709 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
> <marmarek@invisiblethingslab.com>
> Date: Fri, 26 Jun 2015 02:16:49 +0200
> Subject: [PATCH] xen/grant: fix race condition in gntdev_release
>
> While gntdev_release is called, MMU notifier is still registered and
> can traverse priv->maps list even if no pages are mapped (which is the
> case - gntdev_release is called after all). But gntdev_release will
> clear that list, so make sure that only one of those things happens at
> the same time.
Applied to for-linus-4.2 and tagged for stable, thanks.
David
next prev parent reply other threads:[~2015-06-30 15:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-30 14:47 gntdev/gntalloc and fork Marek Marczykowski-Górecki
2015-05-27 23:45 ` gntdev/gntalloc and fork? - crash in gntdev Marek Marczykowski-Górecki
2015-06-17 19:42 ` race condition in xen-gntdev (was: Re: gntdev/gntalloc and fork? - crash in gntdev) Marek Marczykowski-Górecki
2015-06-22 17:46 ` Konrad Rzeszutek Wilk
2015-06-22 18:13 ` Marek Marczykowski-Górecki
2015-06-22 18:37 ` Konrad Rzeszutek Wilk
2015-06-22 19:14 ` race condition in xen-gntdev Daniel De Graaf
2015-06-26 1:28 ` Marek Marczykowski-Górecki
2015-06-29 14:39 ` Konrad Rzeszutek Wilk
2015-06-29 14:50 ` Marek Marczykowski-Górecki
2015-07-22 3:21 ` Marek Marczykowski-Górecki
2015-07-22 13:58 ` Konrad Rzeszutek Wilk
2015-06-30 15:26 ` David Vrabel [this message]
2015-06-30 15:51 ` Marek Marczykowski-Górecki
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