tree 542ab0f1d56b4d9681c8d61fbf77c9a46062e661
parent 5a67657a2e90c9e4a48518f95d4ba7777aa20fbb
author Trond Myklebust <Trond.Myklebust@netapp.com> 1284335725 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1284335725 -0400

SUNRPC: Fix a race in rpc_info_open

There is a race between rpc_info_open and rpc_release_client()
in that nothing stops a process from opening the file after
the clnt->cl_kref goes to zero.

Fix this by using atomic_inc_unless_zero()...

Reported-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org