KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()

Remove gfn_to_pfn_cache_invalidate_start()'s unused @may_block parameter,
which was leftover from KVM's abandoned (for now) attempt to support guest
usage of gfn_to_pfn caches.

Fixes: a4bff3df5147 ("KVM: pfncache: remove KVM_GUEST_USES_PFN usage")
Reported-by: Like Xu <like.xu.linux@gmail.com>
Cc: Paul Durrant <paul@xen.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lore.kernel.org/r/20240305003742.245767-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index fb49c2a..ff0a205 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -832,8 +832,7 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
         * mn_active_invalidate_count (see above) instead of
         * mmu_invalidate_in_progress.
         */
-       gfn_to_pfn_cache_invalidate_start(kvm, range->start, range->end,
-                                         hva_range.may_block);
+       gfn_to_pfn_cache_invalidate_start(kvm, range->start, range->end);
 
        /*
         * If one or more memslots were found and thus zapped, notify arch code

diff --git a/virt/kvm/kvm_mm.h b/virt/kvm/kvm_mm.h
index ecefc7e..715f196 100644 (file)
--- a/virt/kvm/kvm_mm.h
+++ b/virt/kvm/kvm_mm.h
@@ -26,13 +26,11 @@ kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool interruptible,
 #ifdef CONFIG_HAVE_KVM_PFNCACHE
 void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm,
                                       unsigned long start,
-                                      unsigned long end,
-                                      bool may_block);
+                                      unsigned long end);
 #else
 static inline void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm,
                                                     unsigned long start,
-                                                    unsigned long end,
-                                                    bool may_block)
+                                                    unsigned long end)
 {
 }
 #endif /* HAVE_KVM_PFNCACHE */

diff --git a/virt/kvm/pfncache.c b/virt/kvm/pfncache.c
index f618719..e3453e8 100644 (file)
--- a/virt/kvm/pfncache.c
+++ b/virt/kvm/pfncache.c
@@ -23,7 +23,7 @@
  * MMU notifier 'invalidate_range_start' hook.
  */
 void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm, unsigned long start,
-                                      unsigned long end, bool may_block)
+                                      unsigned long end)
 {
        struct gfn_to_pfn_cache *gpc;