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One BUG fix for md for recent commit 

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Merge tag '3.15-fixes' of git://neil.brown.name/md

Pull md bugfix from Neil Brown:
 "One BUG fix for md for recent commit"

* tag '3.15-fixes' of git://neil.brown.name/md:
  raid5: fix a race of stripe count check
This commit is contained in:
Linus Torvalds 2014-04-17 10:51:01 -07:00
parent 09df694a65 c7a6d35e46
commit 23c1a60e2e
1 changed files with 1 additions and 2 deletions
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3
drivers/md/raid5.c
View File

@ -4370,8 +4370,7 @@ static struct stripe_head *__get_priority_stripe(struct r5conf *conf, int group)
sh->group = NULL;
}
list_del_init(&sh->lru);
atomic_inc(&sh->count);
BUG_ON(atomic_read(&sh->count) != 1);
BUG_ON(atomic_inc_return(&sh->count) != 1);
return sh;
}