2022-06-06 05:39:52

by Lai Jiangshan

[permalink] [raw]
Subject: [PATCH 09/12] KVM: X86/MMU: Unfold struct mmu_page_and_offset in struct kvm_mmu_pages

From: Lai Jiangshan <[email protected]>

struct kvm_mmu_page *sp is the only field in struct mmu_page_and_offset.

Unfold it.

Signed-off-by: Lai Jiangshan <[email protected]>
---
arch/x86/kvm/mmu/mmu.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index dc159db46b34..a5563e5ee2e5 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -1743,9 +1743,7 @@ static int nonpaging_sync_page(struct kvm_vcpu *vcpu,
#define KVM_PAGE_ARRAY_NR 16

struct kvm_mmu_pages {
- struct mmu_page_and_offset {
- struct kvm_mmu_page *sp;
- } page[KVM_PAGE_ARRAY_NR];
+ struct kvm_mmu_page *sp[KVM_PAGE_ARRAY_NR];
unsigned int nr;
};

@@ -1755,10 +1753,10 @@ static int mmu_pages_add(struct kvm_mmu_pages *pvec, struct kvm_mmu_page *sp)

if (sp->unsync)
for (i=0; i < pvec->nr; i++)
- if (pvec->page[i].sp == sp)
+ if (pvec->sp[i] == sp)
return 0;

- pvec->page[pvec->nr].sp = sp;
+ pvec->sp[pvec->nr] = sp;
pvec->nr++;
return (pvec->nr == KVM_PAGE_ARRAY_NR);
}
@@ -1894,7 +1892,7 @@ static bool is_obsolete_sp(struct kvm *kvm, struct kvm_mmu_page *sp)

#define for_each_sp(pvec, sp, i) \
for (i = mmu_pages_first(&pvec); \
- i < pvec.nr && ({ sp = pvec.page[i].sp; 1;}); \
+ i < pvec.nr && ({ sp = pvec.sp[i]; 1;}); \
i = mmu_pages_next(&pvec, i))

static int mmu_pages_next(struct kvm_mmu_pages *pvec, int i)
@@ -1902,7 +1900,7 @@ static int mmu_pages_next(struct kvm_mmu_pages *pvec, int i)
int n;

for (n = i+1; n < pvec->nr; n++) {
- struct kvm_mmu_page *sp = pvec->page[n].sp;
+ struct kvm_mmu_page *sp = pvec->sp[n];
int level = sp->role.level;

if (level == PG_LEVEL_4K)
@@ -1921,7 +1919,7 @@ static int mmu_pages_first(struct kvm_mmu_pages *pvec)
if (pvec->nr == 0)
return 0;

- sp = pvec->page[0].sp;
+ sp = pvec->sp[0];
level = sp->role.level;
WARN_ON(level == PG_LEVEL_4K);

--
2.19.1.6.gb485710b