Clean up: don't display the rpc_show_tasks column header unless there is at
least one task to display. As far as I can tell, it is safe to let the
list_for_each_entry macro decide that each list is empty.
scripts/checkpatch.pl also wants a KERN_FOO at the start of any newly added
printk() calls, so this and subsequent patches will also add KERN_INFO.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/clnt.c | 19 ++++++++++++-------
1 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 5aa32fa..1a12236 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1517,24 +1517,30 @@ struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred, int
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");
+}
+
void rpc_show_tasks(void)
{
struct rpc_clnt *clnt;
struct rpc_task *t;
+ int header = 0;
spin_lock(&rpc_client_lock);
- if (list_empty(&all_clients))
- goto out;
- printk("-pid- proc flgs status -client- -prog- --rqstp- -timeout "
- "-rpcwait -action- ---ops--\n");
list_for_each_entry(clnt, &all_clients, cl_clients) {
- if (list_empty(&clnt->cl_tasks))
- continue;
spin_lock(&clnt->cl_lock);
list_for_each_entry(t, &clnt->cl_tasks, tk_task) {
const char *rpc_waitq = "none";
int proc;
+ if (!header) {
+ rpc_show_header();
+ header++;
+ }
+
if (t->tk_msg.rpc_proc)
proc = t->tk_msg.rpc_proc->p_proc;
else
@@ -1554,7 +1560,6 @@ void rpc_show_tasks(void)
}
spin_unlock(&clnt->cl_lock);
}
-out:
spin_unlock(&rpc_client_lock);
}
#endif
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