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migration/postcopy: discard_length must not be 0
authorWei Yang <richardw.yang@linux.intel.com>
Thu, 27 Jun 2019 02:08:22 +0000 (10:08 +0800)
committerDr. David Alan Gilbert <dgilbert@redhat.com>
Wed, 14 Aug 2019 16:33:14 +0000 (17:33 +0100)
commita162b572e9e5a85c440656fe97d7a8b133257379
treeccd3f32191a89b13d9dacc0418842f7061bd6ef3tree
parent33a5cb6202f05bf32a870a17c2d9b6d6be6e52f0commit | diff
migration/postcopy: discard_length must not be 0

Since we break the loop when there is no more page to discard, we are
sure the following process would find some page to discard.

It is not necessary to check it again.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190627020822.15485-4-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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