| commit | 87b245db05aac9bcdb70a4f0af0fc5f353c5a9f8 | [log] [tgz] |
|---|---|---|
| author | Christoph Hellwig <hch@lst.de> | Thu Aug 13 16:49:56 2009 +0200 |
| committer | Anthony Liguori <aliguori@us.ibm.com> | Thu Aug 27 20:30:23 2009 -0500 |
| tree | 276c407258d25658da8d2ee2290a1b716825d3a7 | |
| parent | 5c6c3a6c54b23caa84fb4e046e85a461612279bb [diff] |
virtio-blk: handle NULL returns from bdrv_aio_{read, write}
The bdrv_aio_{read,write} routines can return a NULL pointer when the
I/O submission fails. Currently we ignore this and will wait forever
for an I/O completion and leading to a hang of the guest.
I can easily reproduce this using the native Linux AIO patch, but it's
also possible using normal pthreads-based AIO.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>