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

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ioq.c

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ioq.h

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Makefile.objs

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virtio-blk.c

dataplane: refuse to start if device is already in use

2013-07-29 17:19:15 +02:00

virtio-blk.h

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