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SUNRPC: Fix potential races in xprt_lock_write_next()
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 18 Jan 2012 03:57:37 +0000 (22:57 -0500)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 1 Feb 2012 00:28:08 +0000 (19:28 -0500)
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>

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