From cb3997b5a0b21864368bd1bd1d0929f9304fb6d9 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Wed, 21 May 2008 17:09:41 -0400 Subject: [PATCH] SUNRPC: Display some debugging information as text rather than numbers In rpc_show_tasks(), display the program name, version number, procedure name and tk_action as human-readable variable-length text fields rather than columnar numbers. Doing the symbol lookup here helps in cases where we have actual debugging output from a kernel log, but don't have access to the kernel image or RPC module that generated the output. Sample output: -pid- flgs status -client- --rqstp- -timeout ---ops-- 5608 0001 -11 eeb42690 f6d93710 0 f8fa1764 nfsv3 WRITE a:call_transmit_status q:none 5609 0001 -11 eeb42690 f6d937e0 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5610 0001 -11 eeb42690 f6d93230 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5611 0001 -11 eeb42690 f6d93300 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5612 0001 -11 eeb42690 f6d93090 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5613 0001 -11 eeb42690 f6d933d0 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5614 0001 -11 eeb42690 f6d93cc0 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5615 0001 -11 eeb42690 f6d93a50 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5616 0001 -11 eeb42690 f6d93640 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5617 0001 -11 eeb42690 f6d93b20 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending 5618 0001 -11 eeb42690 f6d93160 0 f8fa1764 nfsv3 WRITE a:call_status q:xprt_sending Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- net/sunrpc/clnt.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 7964a98c90e5..0530eea37b59 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -25,6 +25,7 @@ #include #include +#include #include #include #include @@ -1528,29 +1529,31 @@ EXPORT_SYMBOL_GPL(rpc_call_null); #ifdef RPC_DEBUG static void rpc_show_header(void) { - printk(KERN_INFO "-pid- proc flgs status -client- -prog- --rqstp- " - "-timeout -rpcwait -action- ---ops--\n"); + printk(KERN_INFO "-pid- flgs status -client- --rqstp- " + "-timeout ---ops--\n"); } static void rpc_show_task(const struct rpc_clnt *clnt, const struct rpc_task *task) { const char *rpc_waitq = "none"; - int proc = -1; - - if (task->tk_msg.rpc_proc) - proc = task->tk_msg.rpc_proc->p_proc; + char *p, action[KSYM_SYMBOL_LEN]; if (RPC_IS_QUEUED(task)) rpc_waitq = rpc_qname(task->tk_waitqueue); - printk(KERN_INFO "%5u %04d %04x %6d %8p %6d %8p %8ld %8s %8p %8p\n", - task->tk_pid, proc, - task->tk_flags, task->tk_status, - clnt, clnt->cl_prog, - task->tk_rqstp, task->tk_timeout, - rpc_waitq, - task->tk_action, task->tk_ops); + /* map tk_action pointer to a function name; then trim off + * the "+0x0 [sunrpc]" */ + sprint_symbol(action, (unsigned long)task->tk_action); + p = strchr(action, '+'); + if (p) + *p = '\0'; + + printk(KERN_INFO "%5u %04x %6d %8p %8p %8ld %8p %sv%u %s a:%s q:%s\n", + task->tk_pid, task->tk_flags, task->tk_status, + clnt, task->tk_rqstp, task->tk_timeout, task->tk_ops, + clnt->cl_protname, clnt->cl_vers, rpc_proc_name(task), + action, rpc_waitq); } void rpc_show_tasks(void) -- 2.30.2