tree 4b7ddaf1a19c589e3c8ec96b6c732faa507f2899
parent 2aeb98f498ce37742b743080fdc6c8cf64053599
author Trond Myklebust <Trond.Myklebust@netapp.com> 1326859057 -0500
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1328056088 -0500

SUNRPC: Fix potential races in xprt_lock_write_next()

We have to ensure that the wake up from the waitqueue and the assignment
of xprt->snd_task are atomic. We can do this by assigning the snd_task
while under the waitqueue spinlock.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>