tree 7998ac0aab9c53c25dde38710a4ab60ac7d2935f
parent 53bda3e5b4e91763224ecb7d05dab94d281fd41d
author Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com> 1300137169 -0700
committer Eric Van Hensbergen <ericvh@gmail.com> 1300829567 -0500

[net/9p] Set the condition just before waking up.

Given that the sprious wake-ups are common, we need to move the
condition setting right next to the wake_up().  After setting the condition
to req->status = REQ_STATUS_RCVD, sprious wakeups may cause the
virtqueue back on the free list for someone else to use.
This may result in kernel panic while relasing the pinned pages
in p9_release_req_pages().

Also rearranged the while loop in req_done() for better redability.

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