tree c1b5b6e3cd91ecefe8fc8de808237ef5edf5f328
parent 62b56a675565a2e40f2cdf50455977448fd87413
author Anna Schumaker <Anna.Schumaker@Netapp.com> 1509565723 -0400
committer Anna Schumaker <Anna.Schumaker@Netapp.com> 1510955023 -0500

NFS: Avoid RCU usage in tracepoints

There isn't an obvious way to acquire and release the RCU lock during a
tracepoint, so we can't use the rpc_peeraddr2str() function here.
Instead, rely on the client's cl_hostname, which should have similar
enough information without needing an rcu_dereference().

Reported-by: Dave Jones <davej@codemonkey.org.uk>
Cc: stable@vger.kernel.org # v3.12
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>