nfs4: V2 return/expire delegations depending on their type
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 6fc9fe0..98dbc8f 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -385,27 +385,41 @@
nfs4_schedule_state_manager(clp);
}
-static void nfs_client_mark_return_all_delegations(struct nfs_client *clp)
+static
+void nfs_client_mark_return_all_delegation_types(struct nfs_client *clp, fmode_t flags)
{
struct nfs_delegation *delegation;
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
- nfs_mark_return_delegation(clp, delegation);
+ if ((delegation->type == (FMODE_READ|FMODE_WRITE)) && !(flags & FMODE_WRITE))
+ continue;
+ if (delegation->type & flags)
+ nfs_mark_return_delegation(clp, delegation);
}
rcu_read_unlock();
}
+static void nfs_client_mark_return_all_delegations(struct nfs_client *clp)
+{
+ nfs_client_mark_return_all_delegation_types(clp, FMODE_READ|FMODE_WRITE);
+}
+
static void nfs_delegation_run_state_manager(struct nfs_client *clp)
{
if (test_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state))
nfs4_schedule_state_manager(clp);
}
+static void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags)
+{
+ nfs_client_mark_return_all_delegation_types(clp, flags);
+ nfs_delegation_run_state_manager(clp);
+}
+
void nfs_expire_all_delegations(struct nfs_client *clp)
{
- nfs_client_mark_return_all_delegations(clp);
- nfs_delegation_run_state_manager(clp);
+ nfs_expire_all_delegation_types(clp, FMODE_READ|FMODE_WRITE);
}
/*
