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Commit d38e1d5a authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Linus Torvalds
Browse files

lockstat: better class name representation 



optionally add class->name_version and class->subclass to the class name

Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 96645678

kernel/lockdep_proc.c

+23 −1
Original line number Diff line number Diff line
@@ -421,8 +421,30 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data) 
	class = data->class;

	stats = &data->stats;



	snprintf(name, 38, "%s", class->name);

	namelen = 38;

	if (class->name_version > 1)

		namelen -= 2; /* XXX truncates versions > 9 */

	if (class->subclass)

		namelen -= 2;



	if (!class->name) {

		char str[KSYM_NAME_LEN];

		const char *key_name;



		key_name = __get_key_name(class->key, str);

		snprintf(name, namelen, "%s", key_name);

	} else {

		snprintf(name, namelen, "%s", class->name);

	}

	namelen = strlen(name);

	if (class->name_version > 1) {

		snprintf(name+namelen, 3, "#%d", class->name_version);

		namelen += 2;

	}

	if (class->subclass) {

		snprintf(name+namelen, 3, "/%d", class->subclass);

		namelen += 2;

	}



	if (stats->write_holdtime.nr) {

		if (stats->read_holdtime.nr)