From: David S. Miller <davem@davemloft.net>
Date: Thu, 13 Dec 2018 05:56:20 +0000 (-0800)
Subject: Merge branch 'vhost-fixes'
X-Git-Tag: v5.4-rc1~2042^2~61
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9e69efd453211a3646fba9262d3e7819f80b2949;p=platform%2Fkernel%2Flinux-rpi.git

Merge branch 'vhost-fixes'

Jason Wang says:

====================
Fix various issue of vhost

This series tries to fix various issues of vhost:

- Patch 1 adds a missing write barrier between used idx updating and
  logging.
- Patch 2-3 brings back the protection of device IOTLB through vq
  mutex, this fixes possible use after free in device IOTLB entries.

Please consider them for -stable.

Changes from V2:
- drop dirty page fix and make it for net-next
Changes from V1:
- silent compiler warning for 32bit.
- use mutex_trylock() on slowpath instead of mutex_lock() even on fast
  path.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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9e69efd453211a3646fba9262d3e7819f80b2949