tree 4597a6c868c0e106dc19058df0efaaea1a6b2eb0
parent 02bcf053e9c5dfbb541b8e27a8eeb962a54d577b
author Jie Liu <jeff.liu@oracle.com> 1384347598 +0800
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1389020849 -0500

xen: simplify balloon_first_page() with list_first_entry_or_null()

Replace the code logic at balloon_first_page() by calling
list_first_entry_or_null() directly.  since here is only
one user of that routine, therefore we can just remove it.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>