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| author | David Hildenbrand | 2015-04-27 16:29:34 +0200 |
|---|---|---|
| committer | Christian Borntraeger | 2016-06-20 09:55:21 +0200 |
| commit | 65d0b0d4bcc67b596d8e7286c3bebf24c59ade6a (patch) | |
| tree | af52d3cc6d3c01e7cd98665cfb8ebc3eff4327fc /arch/s390/kvm/kvm-s390.c | |
| parent | s390/mm: don't fault everything in read-write in gmap_pte_op_fixup() (diff) | |
| download | kernel-qcow2-linux-65d0b0d4bcc67b596d8e7286c3bebf24c59ade6a.tar.gz kernel-qcow2-linux-65d0b0d4bcc67b596d8e7286c3bebf24c59ade6a.tar.xz kernel-qcow2-linux-65d0b0d4bcc67b596d8e7286c3bebf24c59ade6a.zip | |
KVM: s390: fast path for shadow gmaps in gmap notifier
The default kvm gmap notifier doesn't have to handle shadow gmaps.
So let's just directly exit in case we get notified about one.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 9dd52980605c..45a8316ba1eb 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1986,6 +1986,8 @@ static void kvm_gmap_notifier(struct gmap *gmap, unsigned long start, unsigned long prefix; int i; + if (gmap_is_shadow(gmap)) + return; if (start >= 1UL << 31) /* We are only interested in prefix pages */ return; |