Revert accidental commit.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

1 files changed, 0 insertions, 44 deletions

diff --git a/xen/include/asm-x86/shadow.h b/xen/include/asm-x86/shadow.h
index 989768daa4..28d50466ea 100644
--- a/xen/include/asm-x86/shadow.h
+++ b/xen/include/asm-x86/shadow.h
@@ -662,14 +662,10 @@ static inline void shadow_sync_and_drop_references(
     if ( likely(!shadow_mode_refcounts(d)) )
         return;
 
-    shadow_lock(d);
-
     if ( page_out_of_sync(page) )
         __shadow_sync_mfn(d, page_to_mfn(page));
 
     shadow_remove_all_access(d, page_to_mfn(page));
-
-    shadow_unlock(d);
 }
 #endif
 
@@ -703,46 +699,6 @@ get_shadow_ref(unsigned long smfn)
     return 1;
 }
 
-    shadow_sync_and_drop_references(d, mfn_to_page(mfn));
-    set_p2m_entry(d, gpfn, -1, &c1, &c2);
-    set_gpfn_from_mfn(mfn, INVALID_M2P_ENTRY);
-    shadow_unlock(d);
-    domain_mmap_cache_destroy(&c1);
-    domain_mmap_cache_destroy(&c2);
-}
-
-/************************************************************************/
-
-/*
- * Add another shadow reference to smfn.
- */
-static inline int
-get_shadow_ref(unsigned long smfn)
-{
-    u32 x, nx;
-
-    ASSERT(mfn_valid(smfn));
-
-    x = mfn_to_page(smfn)->count_info;
-    nx = x + 1;
-
-    if ( unlikely(nx == 0) )
-    {
-        printk("get_shadow_ref overflow, gmfn=%" PRtype_info  " smfn=%lx\n",
-               mfn_to_page(smfn)->u.inuse.type_info & PGT_mfn_mask,
-               smfn);
-        BUG();
-    }
-    
-    // Guarded by the shadow lock...
-    //
-    mfn_to_page(smfn)->count_info = nx;
-
-    return 1;
-}
-
-extern void free_shadow_page(unsigned long smfn);
-
 /*
  * Drop a shadow reference to smfn.
  */