nfsd: make delegations shutdown network namespace aware

NFSv4 delegations are stored in global list. But they are nfs4_client
dependent, which is network namespace aware already.
State shutdown and laundromat are done per network namespace as well.
So, delegations unhash have to be done in network namespace context.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 0e7e174de209..bc2fc9f076fc 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3230,6 +3230,8 @@ nfs4_laundromat(struct nfsd_net *nn)
         spin_lock(&recall_lock);
         list_for_each_safe(pos, next, &del_recall_lru) {
                 dp = list_entry (pos, struct nfs4_delegation, dl_recall_lru);
+                if (net_generic(dp->dl_stid.sc_client->net, nfsd_net_id) != nn)
+                        continue;
                 if (time_after((unsigned long)dp->dl_time, (unsigned long)cutoff)) {
                         u = dp->dl_time - cutoff;
                         if (test_val > u)
@@ -4922,6 +4924,8 @@ __nfs4_state_shutdown(struct net *net)
         spin_lock(&recall_lock);
         list_for_each_safe(pos, next, &del_recall_lru) {
                 dp = list_entry (pos, struct nfs4_delegation, dl_recall_lru);
+                if (dp->dl_stid.sc_client->net != net)
+                        continue;
                 list_move(&dp->dl_recall_lru, &reaplist);
         }
         spin_unlock(&recall_lock);