tree 8898c63d88b9b5fd673a5fae6e27d95712b48135
parent 22524f726210f38298dfb1cefa30257133ad6b8c
author Stefan Hajnoczi <stefanha@redhat.com> 1400077367 +0200
committer Stefan Hajnoczi <stefanha@redhat.com> 1401868572 +0200

blockdev: acquire AioContext in block_set_io_throttle

The block_set_io_throttle QMP and HMP commands modify I/O throttling
limits for block devices.

Acquire the BlockDriverState's AioContext to protect against race
conditions with an IOThread that is running I/O for this device.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>