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author	Wei Yang <richardw.yang@linux.intel.com>
	Thu, 27 Jun 2019 02:08:21 +0000 (10:08 +0800)
committer	Dr. David Alan Gilbert <dgilbert@redhat.com>
	Wed, 14 Aug 2019 16:33:14 +0000 (17:33 +0100)
commit	33a5cb6202f05bf32a870a17c2d9b6d6be6e52f0
tree	242086c3a878277c00f68eb1a3b8d3780d6a7c39	tree
parent	0abfff9ea7c56c2f6ad3cee10120915ec723cb32	commit \| diff

migration/postcopy: break the loop when there is no more page to discard

When one is equal or bigger then end, it means there is no page to
discard. Just break the loop in this case instead of processing it.

No functional change, just refactor it a little.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190627020822.15485-3-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>