diff options
| author |   Thomas Huth <thuth@linux.vnet.ibm.com> | 2014-10-01 14:48:42 +0200 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2014-10-28 13:08:59 +0100 |
| commit | a6b7e459ff6d569227980f711664f927100c73a8 (patch) | |
| tree | e453086ed69408f2573ad4470fc7fb5e401a309d /arch/s390/kvm/kvm-s390.c | |
| parent | Linux 3.18-rc2 (diff) | |
| download | linux-dev-a6b7e459ff6d569227980f711664f927100c73a8.tar.xz linux-dev-a6b7e459ff6d569227980f711664f927100c73a8.zip | |
KVM: s390: Make the simple ipte mutex specific to a VM instead of global
The ipte-locking should be done for each VM seperately, not globally.
This way we avoid possible congestions when the simple ipte-lock is used
and multiple VMs are running.
Suggested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 55aade49b6d1..3e83d4b357b9 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -453,6 +453,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) spin_lock_init(&kvm->arch.float_int.lock); INIT_LIST_HEAD(&kvm->arch.float_int.list); init_waitqueue_head(&kvm->arch.ipte_wq); + mutex_init(&kvm->arch.ipte_mutex); debug_register_view(kvm->arch.dbf, &debug_sprintf_view); VM_EVENT(kvm, 3, "%s", "vm created"); |