[PATCH v8 05/20] KVM: PPC: Book3S HV: Remove pmd_is_leaf()

Steven Price
2019-04-03T14:17:35Z

Since pmd_large() is now always available, pmd_is_leaf() is redundant.
Replace all uses with calls to pmd_large().

CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Michael Ellerman <mpe@ellerman.id.au>
CC: Paul Mackerras <paulus@ozlabs.org>
CC: kvm-ppc@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Steven Price <steven.price@arm.com>
---
arch/powerpc/kvm/book3s_64_mmu_radix.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index f55ef071883f..1b57b4e3f819 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -363,12 +363,6 @@ static void kvmppc_pte_free(pte_t *ptep)
kmem_cache_free(kvm_pte_cache, ptep);
}

-/* Like pmd_huge() and pmd_large(), but works regardless of config options */
-static inline int pmd_is_leaf(pmd_t pmd)
-{
- return !!(pmd_val(pmd) & _PAGE_PTE);
-}
-
static pmd_t *kvmppc_pmd_alloc(void)
{
return kmem_cache_alloc(kvm_pmd_cache, GFP_KERNEL);
@@ -460,7 +454,7 @@ static void kvmppc_unmap_free_pmd(struct kvm *kvm, pmd_t *pmd, bool full,
for (im = 0; im < PTRS_PER_PMD; ++im, ++p) {
if (!pmd_present(*p))
continue;
- if (pmd_is_leaf(*p)) {
+ if (pmd_large(*p)) {
if (full) {
pmd_clear(p);
} else {
@@ -593,7 +587,7 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
else if (level <= 1)
new_pmd = kvmppc_pmd_alloc();

- if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_is_leaf(*pmd)))
+ if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_large(*pmd)))
new_ptep = kvmppc_pte_alloc();

/* Check if we might have been invalidated; let the guest retry if so */
@@ -662,7 +656,7 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
new_pmd = NULL;
}
pmd = pmd_offset(pud, gpa);
- if (pmd_is_leaf(*pmd)) {
+ if (pmd_large(*pmd)) {
unsigned long lgpa = gpa & PMD_MASK;

/* Check if we raced and someone else has set the same thing */
--
2.20.1