Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  exit signals: use of uninitialized field notify_count
  lockdep: fix invalid list_del_rcu in zap_class
  lockstat: repair erronous contention statistics
  lockstat: fix numerical output rounding error
This commit is contained in:
Linus Torvalds 2008-08-28 12:31:49 -07:00
commit 66833d5f39
3 changed files with 7 additions and 6 deletions

View File

@ -918,8 +918,8 @@ static void exit_notify(struct task_struct *tsk, int group_dead)
/* mt-exec, de_thread() is waiting for us */
if (thread_group_leader(tsk) &&
tsk->signal->notify_count < 0 &&
tsk->signal->group_exit_task)
tsk->signal->group_exit_task &&
tsk->signal->notify_count < 0)
wake_up_process(tsk->signal->group_exit_task);
write_unlock_irq(&tasklist_lock);

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@ -875,11 +875,11 @@ static int add_lock_to_list(struct lock_class *class, struct lock_class *this,
if (!entry)
return 0;
entry->class = this;
entry->distance = distance;
if (!save_trace(&entry->trace))
return 0;
entry->class = this;
entry->distance = distance;
/*
* Since we never remove from the dependency list, the list can
* be walked lockless by other CPUs, it's only allocation
@ -3029,7 +3029,7 @@ found_it:
stats = get_lock_stats(hlock_class(hlock));
if (point < ARRAY_SIZE(stats->contention_point))
stats->contention_point[i]++;
stats->contention_point[point]++;
if (lock->cpu != smp_processor_id())
stats->bounces[bounce_contended + !!hlock->read]++;
put_lock_stats(stats);

View File

@ -472,8 +472,9 @@ static void snprint_time(char *buf, size_t bufsiz, s64 nr)
{
unsigned long rem;
nr += 5; /* for display rounding */
rem = do_div(nr, 1000); /* XXX: do_div_signed */
snprintf(buf, bufsiz, "%lld.%02d", (long long)nr, ((int)rem+5)/10);
snprintf(buf, bufsiz, "%lld.%02d", (long long)nr, (int)rem/10);
}
static void seq_time(struct seq_file *m, s64 time)