From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 11 Nov 2019 20:16:27 +0000 (+0100)
Subject: nfs: encode nfsv4 timestamps as 64-bit
X-Git-Tag: v5.6-rc1~29^2~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3167dacbad3a42dffb78cca8684fafcd94575f9;p=thirdparty%2Fkernel%2Flinux.git

nfs: encode nfsv4 timestamps as 64-bit

On 32-bit architectures, xdr_encode_nfstime4() needlessly
truncates timestamps to a 32-bit value in the range between
year 1902 and 2038.

Change it to use 'struct timespec64' to allow the entire range
of values supported by the server.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 728d88b6a698a..8de4d250924b2 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1061,7 +1061,7 @@ static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *ve
 static __be32 *
 xdr_encode_nfstime4(__be32 *p, const struct timespec64 *t)
 {
-	p = xdr_encode_hyper(p, (__s64)t->tv_sec);
+	p = xdr_encode_hyper(p, t->tv_sec);
 	*p++ = cpu_to_be32(t->tv_nsec);
 	return p;
 }