KVM: s390/cmm: Fix prefix handling for diag 10 balloon

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The old handling of prefix pages was broken in the diag10 ballooner.
We now rely on gmap_discard to check for start > end and do a
slow path if the prefix swap pages are affected:
1. discard the pages from start to prefix
2. discard the absolute 0 pages
3. discard the pages after prefix swap to end

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>

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This commit is contained in:

Christian Borntraeger 2014-09-03 21:23:13 +02:00

parent 6b331952f1

commit f7a960affc

1 changed files with 18 additions and 8 deletions

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arch/s390/kvm/diag.c

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