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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-03 09:55:41 +0100 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-06 14:58:52 -0500 |
commit | a72b44222d222749d54b3e370d825094352e389f (patch) | |
tree | d64815b696d207927a4154a2cbc649552708c6f2 /fs/nfs/sysctl.c | |
parent | a895b4a198dd06f8353328867e4f6cfd28b63081 (diff) | |
download | op-kernel-dev-a72b44222d222749d54b3e370d825094352e389f.zip op-kernel-dev-a72b44222d222749d54b3e370d825094352e389f.tar.gz |
NFSv4: Allow user to set the port used by the NFSv4 callback channel
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/sysctl.c')
-rw-r--r-- | fs/nfs/sysctl.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c new file mode 100644 index 0000000..fdc64b5 --- /dev/null +++ b/fs/nfs/sysctl.c @@ -0,0 +1,74 @@ +/* + * linux/fs/nfs/sysctl.c + * + * Sysctl interface to NFS parameters + */ +#include <linux/config.h> +#include <linux/types.h> +#include <linux/linkage.h> +#include <linux/ctype.h> +#include <linux/fs.h> +#include <linux/sysctl.h> +#include <linux/module.h> +#include <linux/nfs4.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 *nfs_callback_sysctl_table; +/* + * Something that isn't CTL_ANY, CTL_NONE or a value that may clash. + * Use the same values as fs/lockd/svc.c + */ +#define CTL_UNNUMBERED -2 + +static ctl_table nfs_cb_sysctls[] = { +#ifdef CONFIG_NFS_V4 + { + .ctl_name = CTL_UNNUMBERED, + .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, + }, +#endif + { .ctl_name = 0 } +}; + +static ctl_table nfs_cb_sysctl_dir[] = { + { + .ctl_name = CTL_UNNUMBERED, + .procname = "nfs", + .mode = 0555, + .child = nfs_cb_sysctls, + }, + { .ctl_name = 0 } +}; + +static ctl_table nfs_cb_sysctl_root[] = { + { + .ctl_name = CTL_FS, + .procname = "fs", + .mode = 0555, + .child = nfs_cb_sysctl_dir, + }, + { .ctl_name = 0 } +}; + +int nfs_register_sysctl(void) +{ + nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root, 0); + if (nfs_callback_sysctl_table == NULL) + return -ENOMEM; + return 0; +} + +void nfs_unregister_sysctl(void) +{ + unregister_sysctl_table(nfs_callback_sysctl_table); + nfs_callback_sysctl_table = NULL; +} |