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[Xen-changelog] init_boot_pages() should ignore sub-page regions.

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Subject:	[Xen-changelog] init_boot_pages() should ignore sub-page regions.
From:	BitKeeper Bot <riel@xxxxxxxxxxx>
Date:	Thu, 19 May 2005 08:06:04 +0000
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ChangeSet 1.1458, 2005/05/19 09:06:04+01:00, kaf24@xxxxxxxxxxxxxxxxxxxx

        init_boot_pages() should ignore sub-page regions.
        Signed-off-by: Matthew Chapman <matthewc@xxxxxx>
        Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>



 page_alloc.c |    2 ++
 1 files changed, 2 insertions(+)


diff -Nru a/xen/common/page_alloc.c b/xen/common/page_alloc.c
--- a/xen/common/page_alloc.c   2005-05-19 05:04:31 -04:00
+++ b/xen/common/page_alloc.c   2005-05-19 05:04:31 -04:00
@@ -156,6 +156,8 @@
 
     ps = round_pgup(ps);
     pe = round_pgdown(pe);
+    if ( pe <= ps )
+        return;
 
     map_free(ps >> PAGE_SHIFT, (pe - ps) >> PAGE_SHIFT);
 

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