qemu/hw/block/dataplane
Stefan Hajnoczi b0f2027cde dataplane: refuse to start if device is already in use
Dataplane must check whether a block device is in use before launching
the dataplane thread.  This is necessary since the thread does not
synchronize with the main loop and I/O requests could cause corruption.

One example is when a drive is added and a block job is started before
hotplugging the virtio-blk-pci adapter.  In this case we must not use
dataplane mode.

Cc: qemu-stable@nongnu.org
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-07-29 17:19:15 +02:00
..
ioq.c hw: move virtio devices to hw/ subdirectories 2013-04-08 18:13:12 +02:00
ioq.h hw: move virtio devices to hw/ subdirectories 2013-04-08 18:13:12 +02:00
Makefile.objs hw: move virtio devices to hw/ subdirectories 2013-04-08 18:13:12 +02:00
virtio-blk.c dataplane: refuse to start if device is already in use 2013-07-29 17:19:15 +02:00
virtio-blk.h hw: move virtio devices to hw/ subdirectories 2013-04-08 18:13:12 +02:00