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KVM: PPC: E500: Replace current->mm by kvm->mm 

Given that in kvm_create_vm() there is:
kvm->mm = current->mm;

And that on every kvm_*_ioctl we have:
if (kvm->mm != current->mm)
	return -EIO;

I see no reason to keep using current->mm instead of kvm->mm.

By doing so, we would reduce the use of 'global' variables on code, relying
more in the contents of kvm struct.

Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Leonardo Bras 2019-09-23 18:24:08 -03:00 committed by Paul Mackerras
parent 258ed7d028
commit f41c4989c8
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/kvm/e500_mmu_host.c
View File

@ -355,9 +355,9 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
if (tlbsel == 1) { if (tlbsel == 1) {
struct vm_area_struct *vma; struct vm_area_struct *vma;
down_read(&current->mm->mmap_sem); down_read(&kvm->mm->mmap_sem);
vma = find_vma(current->mm, hva); vma = find_vma(kvm->mm, hva);
if (vma && hva >= vma->vm_start && if (vma && hva >= vma->vm_start &&
(vma->vm_flags & VM_PFNMAP)) { (vma->vm_flags & VM_PFNMAP)) {
/* /*
@ -441,7 +441,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1); tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1);
} }
up_read(&current->mm->mmap_sem); up_read(&kvm->mm->mmap_sem);
} }
if (likely(!pfnmap)) { if (likely(!pfnmap)) {