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kvm: Change return type to vm_fault_t

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Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.

commit 1c8f422059 ("mm: change return type to vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Souptick Joarder 2018-04-19 00:49:58 +05:30 committed by Paolo Bonzini
parent d7a8bea363
commit 1499fa809e
7 changed files with 7 additions and 7 deletions
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2
arch/mips/kvm/mips.c
View file

@ -1076,7 +1076,7 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
return -ENOIOCTLCMD; return -ENOIOCTLCMD;
} }
int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
{ {
return VM_FAULT_SIGBUS; return VM_FAULT_SIGBUS;
} }

2
arch/powerpc/kvm/powerpc.c
View file

@ -1830,7 +1830,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
return r; return r;
} }
int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
{ {
return VM_FAULT_SIGBUS; return VM_FAULT_SIGBUS;
} }

2
arch/s390/kvm/kvm-s390.c
View file

@ -3993,7 +3993,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
return r; return r;
} }
int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
{ {
#ifdef CONFIG_KVM_S390_UCONTROL #ifdef CONFIG_KVM_S390_UCONTROL
if ((vmf->pgoff == KVM_S390_SIE_PAGE_OFFSET) if ((vmf->pgoff == KVM_S390_SIE_PAGE_OFFSET)

2
arch/x86/kvm/x86.c
View file

@ -3966,7 +3966,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
return r; return r;
} }
int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
{ {
return VM_FAULT_SIGBUS; return VM_FAULT_SIGBUS;
} }

2
include/linux/kvm_host.h
View file

@ -739,7 +739,7 @@ long kvm_arch_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg); unsigned int ioctl, unsigned long arg);
long kvm_arch_vcpu_ioctl(struct file *filp, long kvm_arch_vcpu_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg); unsigned int ioctl, unsigned long arg);
int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf);
int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext); int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext);

2
virt/kvm/arm/arm.c
View file

@ -165,7 +165,7 @@ int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu)
return 0; return 0;
} }
int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
{ {
return VM_FAULT_SIGBUS; return VM_FAULT_SIGBUS;
} }

2
virt/kvm/kvm_main.c
View file

@ -2358,7 +2358,7 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode)
} }
EXPORT_SYMBOL_GPL(kvm_vcpu_on_spin); EXPORT_SYMBOL_GPL(kvm_vcpu_on_spin);
static int kvm_vcpu_fault(struct vm_fault *vmf) static vm_fault_t kvm_vcpu_fault(struct vm_fault *vmf)
{ {
struct kvm_vcpu *vcpu = vmf->vma->vm_file->private_data; struct kvm_vcpu *vcpu = vmf->vma->vm_file->private_data;
struct page *page; struct page *page;