diff options
| author | Sean Christopherson <seanjc@google.com> | 2026-07-23 14:08:03 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-07-27 09:42:42 -0700 |
| commit | 0f0893ac5af3ac9d18440955f302bd20a35ccab2 (patch) | |
| tree | 9a9492167f8fa5aebeeec108217a7241776ba085 /virt | |
| parent | bfbf5fa51145cf874fa6a51d123e0d917db6eedc (diff) | |
KVM: guest_memfd: Pass the number of pages instead of the end pfn into .invalidate()
Pass the number of pages to "invalidate", i.e. reclaim, instead of the end
pfn, as a first step towards aligning the function prototypes between the
de facto "to private" and "to shared" arch hooks. Eventually, the goal
is to end up with kvm_gmem_arch_make_{private,shared}(), and in both cases,
providing the number of pages makes the call sites slightly nicer, and also
avoids any confusion over whether the end pfn is inclusive or exclusive.
Opportunistically rename "start" to "pfn", again to align with the expected
signature of make_private() (which needs to pass a starting gfn as well, at
which point the "start" becomes noise).
No functional change intended.
Cc: Fuad Tabba <fuad.tabba@linux.dev>
Cc: Ackerley Tng <ackerleytng@google.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Ackerley Tng <ackerleytng@google.com>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Link: https://patch.msgid.link/20260723210811.72720-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/guest_memfd.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c index 659b8dbe0b30..c96a2ef5f2ce 100644 --- a/virt/kvm/guest_memfd.c +++ b/virt/kvm/guest_memfd.c @@ -530,11 +530,7 @@ static int kvm_gmem_error_folio(struct address_space *mapping, struct folio *fol #ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE static void kvm_gmem_free_folio(struct folio *folio) { - struct page *page = folio_page(folio, 0); - kvm_pfn_t pfn = page_to_pfn(page); - int order = folio_order(folio); - - kvm_arch_gmem_invalidate(pfn, pfn + (1ul << order)); + kvm_arch_gmem_invalidate(folio_file_pfn(folio, 0), folio_nr_pages(folio)); } #endif |