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authorChristian Borntraeger <borntraeger@de.ibm.com>2011-10-30 15:17:03 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 15:16:45 +0100
commit388186bc920d9200202e4d25de66fa95b1b8fc68 (patch)
treec7e1bc3231a50a91d298a8da59e8fefe2935d6da /arch/s390/include/asm/pgtable.h
parent[S390] take mmap_sem when walking guest page table (diff)
downloadlinux-388186bc920d9200202e4d25de66fa95b1b8fc68.tar.xz
linux-388186bc920d9200202e4d25de66fa95b1b8fc68.zip
[S390] kvm: Handle diagnose 0x10 (release pages)
Linux on System z uses a ballooner based on diagnose 0x10. (aka as collaborative memory management). This patch implements diagnose 0x10 on the guest address space. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
-rw-r--r--arch/s390/include/asm/pgtable.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index bc5f520f6f87..34ede0ea85a9 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -698,6 +698,7 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from,
int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len);
unsigned long __gmap_fault(unsigned long address, struct gmap *);
unsigned long gmap_fault(unsigned long address, struct gmap *);
+void gmap_discard(unsigned long from, unsigned long to, struct gmap *);
/*
* Certain architectures need to do special things when PTEs