Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757792AbbKSGt0 (ORCPT ); Thu, 19 Nov 2015 01:49:26 -0500 Received: from mail-ig0-f194.google.com ([209.85.213.194]:35747 "EHLO mail-ig0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755861AbbKSGtX (ORCPT ); Thu, 19 Nov 2015 01:49:23 -0500 From: Jia He To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Cc: Andrew Morton , Rasmus Villemoes , Denys Vlasenko , Kyungmin Park , Michal Nazarewicz , Yury Norov , Tejun Heo , Martin Kepplinger , George Spelvin , Ingo Molnar , Arnd Bergmann , Jia He Subject: [PATCH v2 0/3] Improve bitmap_empty and bitmap_full Date: Thu, 19 Nov 2015 14:48:41 +0800 Message-Id: <1447915724-29709-1-git-send-email-hejianet@gmail.com> X-Mailer: git-send-email 2.5.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 892 Lines: 24 find_fisrt_{zero_}bit are too heavy for bitmap_{full,empty}. We don't need to calculate and compare the position of bitmap. This set of patch instroduces lightweight api and replaces the heavy one. v2: Move the declarations to linux/bitops.h for compilation Jia He (3): Move 2 mask macro from bitmap.h to bitops.h Introduce 2 bit ops api: all_is_bit_{one,zero} Replace find_fisrt_{zero_}bit with the new lightweight api include/linux/bitmap.h | 7 ++----- include/linux/bitops.h | 7 +++++++ lib/find_bit.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 59 insertions(+), 5 deletions(-) -- 2.5.0 -- 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/