[Xen-changelog] [xen-unstable] tmem: fix regression from c/s 19886 "Remove page-scrub lists and async scrubbing"

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1258958703 0
# Node ID 8f200fe950afea593792df3eedcded98fe803a72
# Parent  1bbc132675a29a030ba7b1ab4b5f6ade8087f94c
tmem: fix regression from c/s 19886 "Remove page-scrub lists and async 
scrubbing"

Fix incorrect page_list macro choice from page-scrub code cleanup.

Signed-off-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
---
 xen/common/tmem_xen.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff -r 1bbc132675a2 -r 8f200fe950af xen/common/tmem_xen.c
--- a/xen/common/tmem_xen.c     Mon Nov 23 06:43:50 2009 +0000
+++ b/xen/common/tmem_xen.c     Mon Nov 23 06:45:03 2009 +0000
@@ -213,12 +213,13 @@ EXPORT void tmh_release_avail_pages_to_h
     spin_lock(&tmh_page_list_lock);
     while ( !page_list_empty(&tmh_page_list) )
     {
-        struct page_info *pg = page_list_first(&tmh_page_list);
+        struct page_info *pg = page_list_remove_head(&tmh_page_list);
         scrub_one_page(pg);
+        tmh_page_list_pages--;
         free_domheap_page(pg);
     }
+    ASSERT(tmh_page_list_pages == 0);
     INIT_PAGE_LIST_HEAD(&tmh_page_list);
-    tmh_page_list_pages = 0;
     spin_unlock(&tmh_page_list_lock);
 }
 

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