linux-kernel - [PATCH] NFS: Fix state renewals missing after boot

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Message-ID: <20251008230935.738405-1-JPEWhacker@gmail.com>
Date: Wed,  8 Oct 2025 17:09:22 -0600
From: Joshua Watt <jpewhacker@...il.com>
To: linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Joshua Watt <jpewhacker@...il.com>,
	Trond Myklebust <trondmy@...nel.org>,
	Anna Schumaker <anna@...nel.org>
Subject: [PATCH] NFS: Fix state renewals missing after boot

From: Joshua Watt <jpewhacker@...il.com>

Since the last renewal time was initialized to 0 and jiffies start
counting at -5 minutes, any clients connected in the first 5 minutes
after a reboot would have their renewal timer set to a very long
interval. If the connection was idle, this would result in the client
state timing out on the server and the next call to the server would
return NFS4ERR_BADSESSION.

Fix this by initializing the last renewal time to the current jiffies
instead of 0.

Signed-off-by: Joshua Watt <jpewhacker@...il.com>
---
 fs/nfs/client.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 4e3dcc157a83..96cdfeb26a90 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -181,6 +181,7 @@ struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
 	clp->cl_nconnect = cl_init->nconnect;
 	clp->cl_max_connect = cl_init->max_connect ? cl_init->max_connect : 1;
 	clp->cl_net = get_net_track(cl_init->net, &clp->cl_ns_tracker, GFP_KERNEL);
+	clp->cl_last_renewal = jiffies;
 
 #if IS_ENABLED(CONFIG_NFS_LOCALIO)
 	seqlock_init(&clp->cl_boot_lock);
-- 
2.51.0