redonkable/alistair23-linux
redonkable/alistair23-linux
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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 mmiotrace: fix remove_kmmio_fault_pages()
This commit is contained in:
Linus Torvalds 2009-03-10 12:03:30 -07:00
parent a651d79979 d0fc63f7bd
commit 1abaf3326b
1 changed files with 8 additions and 7 deletions
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15
arch/x86/mm/kmmio.c
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@ -451,23 +451,24 @@ static void rcu_free_kmmio_fault_pages(struct rcu_head *head)
static void remove_kmmio_fault_pages(struct rcu_head *head)
{
struct kmmio_delayed_release *dr = container_of(
head,
struct kmmio_delayed_release,
rcu);
struct kmmio_delayed_release *dr =
container_of(head, struct kmmio_delayed_release, rcu);
struct kmmio_fault_page *p = dr->release_list;
struct kmmio_fault_page **prevp = &dr->release_list;
unsigned long flags;
spin_lock_irqsave(&kmmio_lock, flags);
while (p) {
if (!p->count)
if (!p->count) {
list_del_rcu(&p->list);
else
prevp = &p->release_next;
} else {
*prevp = p->release_next;
prevp = &p->release_next;
}
p = p->release_next;
}
spin_unlock_irqrestore(&kmmio_lock, flags);
/* This is the real RCU destroy call. */
call_rcu(&dr->rcu, rcu_free_kmmio_fault_pages);
}