tree f5b591952b85baf4ec3a9c7c7e29d0667724eda4
parent 3d70f8c617a436c7146ecb81df2265b4626dfe89
author Weston Andros Adamson <dros@netapp.com> 1351630900 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1352058218 -0500

SUNRPC: add WARN_ON_ONCE for potential deadlock

rpc_shutdown_client should never be called from a workqueue context.
If it is, it could deadlock looping forever trying to kill tasks that are
assigned to the same kworker thread (and will never run rpc_exit_task).

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>