On Tue, Jun 30, 2015 at 04:26:45PM +0100, David Vrabel wrote: > 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?= > > <marma...@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.
Regarding stable backports - remember that before 4.0, there was a spin lock not a mutex. I've stumbled on this while testing on 3.18... -- Best Regards, Marek Marczykowski-Górecki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
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