[PATCH 2/2] s390: Convert vsie code to use page->private

Matthew Wilcox (Oracle)
2024-12-19T16:23:01Z

The vsie pages are not standard page tables, so do not convert them to
use ptdesc. Howver, page->index is going away so use page->private to
store the address rather than page->index.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
arch/s390/kvm/vsie.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 150b9387860a..26cbd69eb06d 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -1393,9 +1393,9 @@ static struct vsie_page *get_vsie_page(struct kvm *kvm, unsigned long addr)
kvm->arch.vsie.next++;
kvm->arch.vsie.next %= nr_vcpus;
}
- radix_tree_delete(&kvm->arch.vsie.addr_to_page, page->index >> 9);
+ radix_tree_delete(&kvm->arch.vsie.addr_to_page, page->private >> 9);
}
- page->index = addr;
+ page->private = addr;
/* double use of the same address */
if (radix_tree_insert(&kvm->arch.vsie.addr_to_page, addr >> 9, page)) {
page_ref_dec(page);
@@ -1496,7 +1496,7 @@ void kvm_s390_vsie_destroy(struct kvm *kvm)
vsie_page = page_to_virt(page);
release_gmap_shadow(vsie_page);
/* free the radix tree entry */
- radix_tree_delete(&kvm->arch.vsie.addr_to_page, page->index >> 9);
+ radix_tree_delete(&kvm->arch.vsie.addr_to_page, page->private >> 9);
__free_page(page);
}
kvm->arch.vsie.page_count = 0;
--
2.45.2