SUNRPC: add WARN_ON_ONCE for potential deadlock
authorWeston Andros Adamson <dros@netapp.com>
Tue, 30 Oct 2012 21:01:40 +0000 (17:01 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Sun, 4 Nov 2012 19:43:38 +0000 (14:43 -0500)
commit168e4b39d1afb79a7e3ea6c3bb246b4c82c6bdb9
treef5b591952b85baf4ec3a9c7c7e29d0667724eda4
parent3d70f8c617a436c7146ecb81df2265b4626dfe89
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>
net/sunrpc/clnt.c