Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / nfs / nfs4sysctl.c

diff --git a/kernel/fs/nfs/nfs4sysctl.c b/kernel/fs/nfs/nfs4sysctl.c
new file mode 100644 (file)
index 0000000..0fbd3ab
--- /dev/null
+++ b/kernel/fs/nfs/nfs4sysctl.c
@@ -0,0 +1,69 @@
+/*
+ * linux/fs/nfs/nfs4sysctl.c
+ *
+ * Sysctl interface to NFS v4 parameters
+ *
+ * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com>
+ */
+#include <linux/sysctl.h>
+#include <linux/nfs_fs.h>
+
+#include "nfs4_fs.h"
+#include "nfs4idmap.h"
+#include "callback.h"
+
+static const int nfs_set_port_min = 0;
+static const int nfs_set_port_max = 65535;
+static struct ctl_table_header *nfs4_callback_sysctl_table;
+
+static struct ctl_table nfs4_cb_sysctls[] = {
+       {
+               .procname = "nfs_callback_tcpport",
+               .data = &nfs_callback_set_tcpport,
+               .maxlen = sizeof(int),
+               .mode = 0644,
+               .proc_handler = proc_dointvec_minmax,
+               .extra1 = (int *)&nfs_set_port_min,
+               .extra2 = (int *)&nfs_set_port_max,
+       },
+       {
+               .procname = "idmap_cache_timeout",
+               .data = &nfs_idmap_cache_timeout,
+               .maxlen = sizeof(int),
+               .mode = 0644,
+               .proc_handler = proc_dointvec_jiffies,
+       },
+       { }
+};
+
+static struct ctl_table nfs4_cb_sysctl_dir[] = {
+       {
+               .procname = "nfs",
+               .mode = 0555,
+               .child = nfs4_cb_sysctls,
+       },
+       { }
+};
+
+static struct ctl_table nfs4_cb_sysctl_root[] = {
+       {
+               .procname = "fs",
+               .mode = 0555,
+               .child = nfs4_cb_sysctl_dir,
+       },
+       { }
+};
+
+int nfs4_register_sysctl(void)
+{
+       nfs4_callback_sysctl_table = register_sysctl_table(nfs4_cb_sysctl_root);
+       if (nfs4_callback_sysctl_table == NULL)
+               return -ENOMEM;
+       return 0;
+}
+
+void nfs4_unregister_sysctl(void)
+{
+       unregister_sysctl_table(nfs4_callback_sysctl_table);
+       nfs4_callback_sysctl_table = NULL;
+}