diff options
Diffstat (limited to 'net/sunrpc/sysctl.c')
| -rw-r--r-- | net/sunrpc/sysctl.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c index bada7de0c2fc..0f8c439b848a 100644 --- a/net/sunrpc/sysctl.c +++ b/net/sunrpc/sysctl.c @@ -18,6 +18,7 @@ #include <linux/sunrpc/types.h> #include <linux/sunrpc/sched.h> #include <linux/sunrpc/stats.h> +#include <linux/sunrpc/svc_xprt.h> /* * Declare the debug flags here @@ -55,6 +56,30 @@ rpc_unregister_sysctl(void) } } +static int proc_do_xprt(ctl_table *table, int write, struct file *file, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + char tmpbuf[256]; + int len; + if ((*ppos && !write) || !*lenp) { + *lenp = 0; + return 0; + } + if (write) + return -EINVAL; + else { + len = svc_print_xprts(tmpbuf, sizeof(tmpbuf)); + if (!access_ok(VERIFY_WRITE, buffer, len)) + return -EFAULT; + + if (__copy_to_user(buffer, tmpbuf, len)) + return -EFAULT; + } + *lenp -= len; + *ppos += len; + return 0; +} + static int proc_dodebug(ctl_table *table, int write, struct file *file, void __user *buffer, size_t *lenp, loff_t *ppos) @@ -147,6 +172,12 @@ static ctl_table debug_table[] = { .mode = 0644, .proc_handler = &proc_dodebug }, + { + .procname = "transports", + .maxlen = 256, + .mode = 0444, + .proc_handler = &proc_do_xprt, + }, { .ctl_name = 0 } }; |