From: Jeff Layton <jlayton@kernel.org>
Date: Mon, 3 Mar 2025 17:26:03 +0000 (-0500)
Subject: nfsd: use a long for the count in nfsd4_state_shrinker_count()
X-Git-Tag: v6.15-rc1~88^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=261e3bbf9747e9c7c87b3bce519df94754e24ed8;p=thirdparty%2Fkernel%2Flinux.git

nfsd: use a long for the count in nfsd4_state_shrinker_count()

If there are no courtesy clients then the return value from the
atomic_long_read() could overflow an int. Use a long to store the value
instead.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e51c310bd1115..982045944c3cc 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4815,8 +4815,8 @@ out:
 static unsigned long
 nfsd4_state_shrinker_count(struct shrinker *shrink, struct shrink_control *sc)
 {
-	int count;
 	struct nfsd_net *nn = shrink->private_data;
+	long count;
 
 	count = atomic_read(&nn->nfsd_courtesy_clients);
 	if (!count)