To prepare for supporting boot-time page size selection, refactor code to remove assumptions about PAGE_SIZE being compile-time constant. Code intended to be equivalent when compile-time page size is active. Modify BUILD_BUG_ON() to compare with page size limit. Signed-off-by: Ryan Roberts <ryan.roberts@xxxxxxx> --- ***NOTE*** Any confused maintainers may want to read the cover note here for context: https://lore.kernel.org/all/20241014105514.3206191-1-ryan.roberts@xxxxxxx/ virt/kvm/kvm_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index cb2b78e92910f..6c862bc41a672 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -4244,7 +4244,7 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, unsigned long id) goto vcpu_decrement; } - BUILD_BUG_ON(sizeof(struct kvm_run) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(struct kvm_run) > PAGE_SIZE_MIN); page = alloc_page(GFP_KERNEL_ACCOUNT | __GFP_ZERO); if (!page) { r = -ENOMEM; -- 2.43.0
