tree 74e52bf0382e488c07a71a24391a4f893bf40da0
parent ab0997e0afdcb272fd04784a280b2df46b0c759f
author MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> 1313152395 +0900
committer Kevin Wolf <kwolf@redhat.com> 1314190431 +0200

sheepdog: use coroutines

This makes the sheepdog block driver support bdrv_co_readv/writev
instead of bdrv_aio_readv/writev.

With this patch, Sheepdog network I/O becomes fully asynchronous.  The
block driver yields back when send/recv returns EAGAIN, and is resumed
when the sheepdog network connection is ready for the operation.

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>