The following changes since commit 5480f591a58df0e873ab80ba21e7b81b9a6fa0c5:
Merge branch 'master' of ssh://router.home.kernel.dk/data/git/blktrace (2011-01-11 08:36:21 +0100)
are available in the git repository at:
git://git.kernel.dk/blktrace.git master
Tao Ma (1):
blkiomon: Fix an output error
stats.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
---
Diff of recent changes:
diff --git a/stats.h b/stats.h
index fdedf27..5b9a313 100644
--- a/stats.h
+++ b/stats.h
@@ -75,6 +75,9 @@ static inline void minmax_to_be(struct minmax *mm)
static inline double minmax_avg(struct minmax *mm)
{
+ if (!mm->num)
+ return 0;
+
return (mm->sum / (double)mm->num);
}
@@ -82,6 +85,9 @@ static inline double minmax_var(struct minmax *mm)
{
double num = (double)mm->num;
+ if (!mm->num)
+ return 0;
+
return ((mm->sos - ((mm->sum * mm->sum) / num)) / num);
}
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