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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-07-19 01:49:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 10:04:49 -0700 |
| commit | d38e1d5aaee384698fcef9455d6e2df1d062a1d0 (patch) | |
| tree | ba23e36611be644fa731e616f2f6c9d360491ad6 /kernel/lockdep_proc.c | |
| parent | 96645678cd726e87ce42a0664de71e047e32bca4 (diff) | |
| download | lwn-d38e1d5aaee384698fcef9455d6e2df1d062a1d0.tar.gz lwn-d38e1d5aaee384698fcef9455d6e2df1d062a1d0.zip | |
lockstat: better class name representation
optionally add class->name_version and class->subclass to the class name
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/lockdep_proc.c')
| -rw-r--r-- | kernel/lockdep_proc.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index 7ff80135cbeb..9f17af4a2490 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -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) |