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md/raid6: eliminate BUG_ON with side effect

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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>
This commit is contained in:
Dan Williams 2009-09-16 12:11:54 -07:00
parent 084dac53ad
commit 2d6e4ecc87
1 changed files with 4 additions and 2 deletions
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6
drivers/md/raid5.c
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@ -3214,8 +3214,10 @@ static bool handle_stripe6(struct stripe_head *sh)
/* now count some things */ /* now count some things */
if (test_bit(R5_LOCKED, &dev->flags)) s.locked++; if (test_bit(R5_LOCKED, &dev->flags)) s.locked++;
if (test_bit(R5_UPTODATE, &dev->flags)) s.uptodate++; if (test_bit(R5_UPTODATE, &dev->flags)) s.uptodate++;
if (test_bit(R5_Wantcompute, &dev->flags)) if (test_bit(R5_Wantcompute, &dev->flags)) {
BUG_ON(++s.compute > 2); s.compute++;
BUG_ON(s.compute > 2);
}
if (test_bit(R5_Wantfill, &dev->flags)) { if (test_bit(R5_Wantfill, &dev->flags)) {
s.to_fill++; s.to_fill++;