Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751942AbbD3LkR (ORCPT ); Thu, 30 Apr 2015 07:40:17 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:35227 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750947AbbD3Lge (ORCPT ); Thu, 30 Apr 2015 07:36:34 -0400 From: Paolo Bonzini To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: rkrcmar@redhat.com, bsd@redhat.com, guangrong.xiao@linux.intel.com, Yang Zhang , wanpeng.li@linux.intel.com Subject: [PATCH 02/13] KVM: reuse memslot in kvm_write_guest_page Date: Thu, 30 Apr 2015 13:36:01 +0200 Message-Id: <1430393772-27208-3-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1430393772-27208-1-git-send-email-pbonzini@redhat.com> References: <1430393772-27208-1-git-send-email-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1310 Lines: 44 From: Radim Krčmář Saves one O(log N) search. Signed-off-by: Radim Krčmář Message-Id: <1428695247-27603-1-git-send-email-rkrcmar@redhat.com> Signed-off-by: Paolo Bonzini --- virt/kvm/kvm_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 90977418aeb6..b6d415156283 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1590,15 +1590,17 @@ int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, int offset, int len) { int r; + struct kvm_memory_slot *memslot; unsigned long addr; - addr = gfn_to_hva(kvm, gfn); + memslot = gfn_to_memslot(kvm, gfn); + addr = gfn_to_hva_memslot(memslot, gfn); if (kvm_is_error_hva(addr)) return -EFAULT; r = __copy_to_user((void __user *)addr + offset, data, len); if (r) return -EFAULT; - mark_page_dirty(kvm, gfn); + mark_page_dirty_in_slot(kvm, memslot, gfn); return 0; } EXPORT_SYMBOL_GPL(kvm_write_guest_page); -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/