[PATCH 2/3] NFSD: add helper to set NFSD4_CLIENT_CB_KILL to stop the callback

[Dai Ngo <dai.ngo@oracle.com>]

Add helper for nfs4state functions to set NFSD4_CLIENT_CB_KILL
to stop the callback.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
---
 fs/nfsd/nfs4callback.c | 5 +++++
 fs/nfsd/state.h        | 1 +
 2 files changed, 6 insertions(+)

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index f8bb5ff2e9ac..4c3a4d5df626 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1562,3 +1562,8 @@ bool nfsd4_run_cb(struct nfsd4_callback *cb)
 		nfsd41_cb_inflight_end(clp);
 	return queued;
 }
+
+void nfsd4_kill_callback(struct nfs4_client *clp)
+{
+	set_bit(NFSD4_CLIENT_CB_KILL, &clp->cl_flags);
+}
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index f42d8d782c84..cde05c26afd8 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -757,6 +757,7 @@ struct nfsd_file *find_any_file(struct nfs4_file *f);
 
 #ifdef CONFIG_NFSD_V4
 void nfsd4_revoke_states(struct net *net, struct super_block *sb);
+void nfsd4_kill_callback(struct nfs4_client *clp);
 #else
 static inline void nfsd4_revoke_states(struct net *net, struct super_block *sb)
 {
-- 
2.39.3