From 2d6e4ecc87d20299bcb249dd62efbd73496744c3 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 16 Sep 2009 12:11:54 -0700
Subject: [PATCH] md/raid6: eliminate BUG_ON with side effect
As pointed out by Neil it should be possible to build a driver with all
BUG_ON statements deleted. It's bad form to have a BUG_ON with a side
effect.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/md/raid5.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9b00a229015a..0a5f03d93aef 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3214,8 +3214,10 @@ static bool handle_stripe6(struct stripe_head *sh)
/* now count some things */
if (test_bit(R5_LOCKED, &dev->flags)) s.locked++;
if (test_bit(R5_UPTODATE, &dev->flags)) s.uptodate++;
- if (test_bit(R5_Wantcompute, &dev->flags))
- BUG_ON(++s.compute > 2);
+ if (test_bit(R5_Wantcompute, &dev->flags)) {
+ s.compute++;
+ BUG_ON(s.compute > 2);
+ }
if (test_bit(R5_Wantfill, &dev->flags)) {
s.to_fill++;
--
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