1 files changed, 14 insertions, 0 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 4625479a6b62..e7bd0d92600f 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -2050,6 +2050,20 @@ static int param_set_port(const char *val, struct kernel_param *kp)
 module_param_call(callback_tcpport, param_set_port, param_get_int,
                  &nfs_callback_set_tcpport, 0644);
 
+static int param_set_idmap_timeout(const char *val, struct kernel_param *kp)
+{
+        char *endp;
+        int num = simple_strtol(val, &endp, 0);
+        int jif = num * HZ;
+        if (endp == val || *endp || num < 0 || jif < num)
+                return -EINVAL;
+        *((int *)kp->arg) = jif;
+        return 0;
+}
+
+module_param_call(idmap_cache_timeout, param_set_idmap_timeout, param_get_int,
+                 &nfs_idmap_cache_timeout, 0644);
+
 #define nfs4_init_once(nfsi) \
         do { \
                 INIT_LIST_HEAD(&(nfsi)->open_states); \