linux-kernel - Re: [PATCH 21/21] dynamic_debug: delete pending queries

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Date:	Wed, 20 Jul 2011 11:43:11 -0600
From:	Jim Cromie <jim.cromie@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	jbaron@...hat.com, linux-kernel@...r.kernel.org,
	bvanassche@....org, gregkh@...e.de, gnb@...h.org
Subject: Re: [PATCH 21/21] dynamic_debug: delete pending queries

On Mon, Jul 11, 2011 at 6:25 PM, Joe Perches <joe@...ches.com> wrote:
> On Mon, 2011-07-11 at 01:46 -0600, Jim Cromie wrote:
>> delete pending queries by re-issuing it with disabled flags
> []
>> diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
> []
>> @@ -505,7 +505,17 @@ static int ddebug_save_pending(struct ddebug_query *query,
>>
>>       list_for_each_entry_safe(pq, pqnext, &pending_queries, link) {
>>               if (queries_match(query, &pq->query)) {
>> -                     /* query already in list, update flags */
>> +                     /* query already in list */
>> +                     if (!flags) {
>> +                             /* zeroed flags, remove query */
>> +                             if (verbose)
>> +                                     pr_info("delete pending: %s\n",
>> +                                             show_pending_query(pq));
>
> I think these should be pr_debug.
> I know you're only using the current style.
>
> Jason, any reason these can not be converted?
>
>

hi Joe,

one other corner case (in addition to pr_cont, which I probly should
have addressed to you)

+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__

makes pr_debug unconditionally print stuff that can be
doubled up if flags are also used.

Ive done s/pr_info/pr_debug/ locally, when combined with:
  ddebug_query="module dynamic_debug +pfmlt "
lines are too long, and are redundant

This is pretty trivial, and can be avoided by
"dont add those flags then", but I could imagine it
being a minor annoyance wherever both pr_debug
and pr_info|warn|err|etc are used together.

Perhaps pr_debug and friends should ignore pr_fmt
under CONFIG_DYNAMIC_DEBUG ?
--
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