From: J. Bruce Fields bfields@redhat.com
[ Upstream commit f7104cc1a9159cd0d3e8526cb638ae0301de4b61 ]
This should use the network-namespace-wide client_lock, not the per-client cl_lock.
You shouldn't see any bugs unless you're actually using the forced-expiry interface introduced by 89c905beccbb.
Fixes: 89c905beccbb "nfsd: allow forced expiration of NFSv4 clients" Signed-off-by: J. Bruce Fields bfields@redhat.com Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/nfs4state.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 90e81f6491ff..ab81e8ae3265 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2665,9 +2665,9 @@ static void force_expire_client(struct nfs4_client *clp) struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id); bool already_expired;
- spin_lock(&clp->cl_lock); + spin_lock(&nn->client_lock); clp->cl_time = 0; - spin_unlock(&clp->cl_lock); + spin_unlock(&nn->client_lock);
wait_event(expiry_wq, atomic_read(&clp->cl_rpc_users) == 0); spin_lock(&nn->client_lock);