From: Keir Fraser <keir.fraser@citrix.com>
Date: Wed, 16 Jul 2008 10:25:06 +0000 (+0100)
Subject: x86 shadow: Re-init per-page spinlock before freeing p2m pages.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14188^2~8
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=b00a73e7c35daffda80940f9ee06f0556f5b6669;p=xen.git

x86 shadow: Re-init per-page spinlock before freeing p2m pages.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
---

diff --git a/xen/arch/x86/mm/shadow/common.c b/xen/arch/x86/mm/shadow/common.c
index 0a99435601..57baa27655 100644
--- a/xen/arch/x86/mm/shadow/common.c
+++ b/xen/arch/x86/mm/shadow/common.c
@@ -1676,6 +1676,9 @@ shadow_free_p2m_page(struct domain *d, struct page_info *pg)
     /* Free should not decrement domain's total allocation, since 
      * these pages were allocated without an owner. */
     page_set_owner(pg, NULL); 
+#if defined(__x86_64__)
+    spin_lock_init(&pg->lock);
+#endif
     free_domheap_pages(pg, 0);
     d->arch.paging.shadow.p2m_pages--;
     perfc_decr(shadow_alloc_count);