diff options
| -rw-r--r-- | arch/x86/xen/p2m.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index 7ed8cc3434c5..1b267e75158d 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -809,17 +809,21 @@ struct page *m2p_find_override(unsigned long mfn) { unsigned long flags; struct list_head *bucket = &m2p_overrides[mfn_hash(mfn)]; - struct page *p, *t, *ret; + struct page *p, *ret; ret = NULL; - list_for_each_entry_safe(p, t, bucket, lru) { + spin_lock_irqsave(&m2p_override_lock, flags); + + list_for_each_entry(p, bucket, lru) { if (page_private(p) == mfn) { ret = p; break; } } + spin_unlock_irqrestore(&m2p_override_lock, flags); + return ret; } |