tree 44292212cecafac6ed870812b882b9af545bdaa6
parent 419b39561e698d73a42f8010655d22e0134486da
author Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com> 1285810421 -0700
committer Eric Van Hensbergen <ericvh@gmail.com> 1288274928 -0500

net/9p: Add waitq to VirtIO transport.

If there is not enough space for the PDU on the VirtIO ring, current
code returns -EIO propagating the error to user.

This patch introduced a wqit_queue on the channel, and lets the process
wait on this queue until VirtIO ring frees up.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>