Hi: 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. Thanks 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. Jason Wang (3): vhost: make sure used idx is seen before log in vhost_add_used_n() vhost_net: switch to use mutex_trylock() in vhost_net_busy_poll() Revert "net: vhost: lock the vqs one by one" drivers/vhost/net.c | 8 +++++++- drivers/vhost/vhost.c | 23 +++++++++++++++++++---- 2 files changed, 26 insertions(+), 5 deletions(-) -- 2.17.1 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
