[Xen-devel] [PATCH v3 06/41] x86/kvm: convert put_page() to put_user_page*()

[john.hubbard@xxxxxxxxx]

From: John Hubbard <jhubbard@xxxxxxxxxx>

For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page().

This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder versions").

Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: x86@xxxxxxxxxx
Cc: kvm@xxxxxxxxxxxxxxx
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
 arch/x86/kvm/svm.c  | 4 ++--
 virt/kvm/kvm_main.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 7eafc6907861..ff93c923ed36 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1827,7 +1827,7 @@ static struct page **sev_pin_memory(struct kvm *kvm, 
unsigned long uaddr,
 
 err:
        if (npinned > 0)
-               release_pages(pages, npinned);
+               put_user_pages(pages, npinned);
 
        kvfree(pages);
        return NULL;
@@ -1838,7 +1838,7 @@ static void sev_unpin_memory(struct kvm *kvm, struct page 
**pages,
 {
        struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 
-       release_pages(pages, npages);
+       put_user_pages(pages, npages);
        kvfree(pages);
        sev->pages_locked -= npages;
 }
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 887f3b0c2b60..4b6a596ea8e9 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1499,7 +1499,7 @@ static int hva_to_pfn_slow(unsigned long addr, bool 
*async, bool write_fault,
 
                if (__get_user_pages_fast(addr, 1, 1, &wpage) == 1) {
                        *writable = true;
-                       put_page(page);
+                       put_user_page(page);
                        page = wpage;
                }
        }
@@ -1831,7 +1831,7 @@ EXPORT_SYMBOL_GPL(kvm_release_page_clean);
 void kvm_release_pfn_clean(kvm_pfn_t pfn)
 {
        if (!is_error_noslot_pfn(pfn) && !kvm_is_reserved_pfn(pfn))
-               put_page(pfn_to_page(pfn));
+               put_user_page(pfn_to_page(pfn));
 }
 EXPORT_SYMBOL_GPL(kvm_release_pfn_clean);
 
-- 
2.22.0


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