Michael S. Tsirkin b0c057ca7e vhost: fix a theoretical race in device cleanup ... vhost_zerocopy_callback accesses VQ right after it drops a ubuf reference. In theory, this could race with device removal which waits on the ubuf kref, and crash on use after free. Do all accesses within rcu read side critical section, and synchronize on release. Since callbacks are always invoked from bh, synchronize_rcu_bh seems enough and will help release complete a bit faster. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-02-13 18:47:30 -05:00
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Kconfig	vhost: Make vhost a separate module	2013-07-07 17:33:44 +03:00
Makefile	vhost: Make vhost a separate module	2013-07-07 17:33:44 +03:00
net.c	vhost: fix a theoretical race in device cleanup	2014-02-13 18:47:30 -05:00
scsi.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-01-31 15:31:23 -08:00
test.c	vhost: remove the dead branch	2013-12-06 15:22:05 -05:00
test.h	vhost test module	2010-12-09 16:00:21 +02:00
vhost.c	vhost: remove the dead branch	2013-12-06 15:22:05 -05:00
vhost.h	vhost: remove the dead branch	2013-12-06 15:22:05 -05:00
vringh.c	Add missing module license tag to vring helpers.	2013-05-08 10:49:03 +09:30