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| author | Avi Kivity <avi@redhat.com> | 2010-09-19 18:44:07 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:52:56 +0200 |
| commit | f4f510508741680e423524c222f615276ca6222c (patch) | |
| tree | 6c5212b82659ff7c0e7c9124b3583ea39987bc83 /arch/x86/kvm/x86.c | |
| parent | 28e4639adf0c9f26f6bb56149b7ab547bf33bb95 (diff) | |
| download | lwn-f4f510508741680e423524c222f615276ca6222c.tar.gz lwn-f4f510508741680e423524c222f615276ca6222c.zip | |
KVM: Convert PIC lock from raw spinlock to ordinary spinlock
The PIC code used to be called from preempt_disable() context, which
wasn't very good for PREEMPT_RT. That is no longer the case, so move
back from raw_spinlock_t to spinlock_t.
Signed-off-by: Avi Kivity <avi@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 0b021e16f9dd..3adf6921e88e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3011,18 +3011,18 @@ static int kvm_vm_ioctl_set_irqchip(struct kvm *kvm, struct kvm_irqchip *chip) r = 0; switch (chip->chip_id) { case KVM_IRQCHIP_PIC_MASTER: - raw_spin_lock(&pic_irqchip(kvm)->lock); + spin_lock(&pic_irqchip(kvm)->lock); memcpy(&pic_irqchip(kvm)->pics[0], &chip->chip.pic, sizeof(struct kvm_pic_state)); - raw_spin_unlock(&pic_irqchip(kvm)->lock); + spin_unlock(&pic_irqchip(kvm)->lock); break; case KVM_IRQCHIP_PIC_SLAVE: - raw_spin_lock(&pic_irqchip(kvm)->lock); + spin_lock(&pic_irqchip(kvm)->lock); memcpy(&pic_irqchip(kvm)->pics[1], &chip->chip.pic, sizeof(struct kvm_pic_state)); - raw_spin_unlock(&pic_irqchip(kvm)->lock); + spin_unlock(&pic_irqchip(kvm)->lock); break; case KVM_IRQCHIP_IOAPIC: r = kvm_set_ioapic(kvm, &chip->chip.ioapic); |