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SUNRPC: Don't display the rpc_show_tasks header if there are no tasks 

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@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
hifive-unleashed-5.1
Chuck Lever 2008-05-21 17:09:26 -04:00 committed by Trond Myklebust
parent b0e1c57ea0
commit 68a23ee94e
1 changed files with 12 additions and 7 deletions
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19
net/sunrpc/clnt.c
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@ -1526,24 +1526,30 @@ 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
@ -1563,7 +1569,6 @@ void rpc_show_tasks(void)
}
spin_unlock(&clnt->cl_lock);
}
out:
spin_unlock(&rpc_client_lock);
}
#endif