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authorDominik Dingel <dingel@linux.vnet.ibm.com>2014-03-24 14:27:58 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-04-22 09:36:27 +0200
commita0bf4f149bbfa2e31b5f4172c817afdb7b986733 (patch)
treeed16368e498daaf4451241b5c734368a31986b1e /virt
parent0a61b222df75a6a69dc34816f7db2f61fee8c935 (diff)
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KVM: s390/mm: new gmap_test_and_clear_dirty function
For live migration kvm needs to test and clear the dirty bit of guest pages. That for is ptep_test_and_clear_user_dirty, to be sure we are not racing with other code, we protect the pte. This needs to be done within the architecture memory management code. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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