netdev - another sunrpc locking question

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Message-ID: <4E0E24EA.20300@candelatech.com>
Date:	Fri, 01 Jul 2011 12:50:02 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	netdev <netdev@...r.kernel.org>, linux-nfs@...r.kernel.org
Subject: another sunrpc locking question

It seems that the rpc_shutdown_client logic grabs
a clnt->cl_lock lock, and then in the rpc_exit logic it
writes to the task->tk_action.

But, I don't see anything keeping that from racing with
the __rpc_execute() logic, which might also be modifying
the task object without any locks held.

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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