[PATCH] nfsd: New counter for generating client confirm verifier

[Kinglong Mee <kinglongmee@gmail.com>]

If using clientid_counter, gen_confirm will generate same verifier
in one second.

A new counter for client confirm verifier make sure gen_confirm
generating different each calling for the same clientid.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
---
 fs/nfsd/netns.h     | 1 +
 fs/nfsd/nfs4state.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index ea6749a..d8b16c2 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -110,6 +110,7 @@ struct nfsd_net {
 	unsigned int max_connections;
 
 	u32 clientid_counter;
+	u32 clverifier_counter;
 
 	struct svc_serv *nfsd_serv;
 };
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 61dfb33..5a64757e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1894,7 +1894,7 @@ static void gen_confirm(struct nfs4_client *clp, struct nfsd_net *nn)
 	 * __force to keep sparse happy
 	 */
 	verf[0] = (__force __be32)get_seconds();
-	verf[1] = (__force __be32)nn->clientid_counter;
+	verf[1] = (__force __be32)nn->clverifier_counter++;
 	memcpy(clp->cl_confirm.data, verf, sizeof(clp->cl_confirm.data));
 }
 
-- 
2.4.3