From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5244AC433EF for ; Mon, 18 Jun 2018 13:11:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0E8132086A for ; Mon, 18 Jun 2018 13:11:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0E8132086A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934464AbeFRNLm (ORCPT ); Mon, 18 Jun 2018 09:11:42 -0400 Received: from mga05.intel.com ([192.55.52.43]:57985 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933009AbeFRNKH (ORCPT ); Mon, 18 Jun 2018 09:10:07 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Jun 2018 06:10:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,239,1526367600"; d="scan'208";a="58194695" Received: from black.fi.intel.com ([10.237.72.28]) by FMSMGA003.fm.intel.com with ESMTP; 18 Jun 2018 06:10:03 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 5DECEFA; Mon, 18 Jun 2018 16:10:04 +0300 (EEST) From: Andy Shevchenko To: Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Shaohua Li , linux-raid@vger.kernel.org, Dmitry Torokhov , linux-input@vger.kernel.org, Andrew Morton , Yury Norov , linux-kernel@vger.kernel.org, mika.westerberg@linux.intel.com, Joe Perches Cc: Andy Shevchenko Subject: [PATCH v3 0/5] bitmap: Introduce alloc/free helpers Date: Mon, 18 Jun 2018 16:09:58 +0300 Message-Id: <20180618131003.88110-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A lot of code is using allocation of bitmaps using BITS_PER_LONG() macro and sizeof(unsigned long) operator. The readability suffers because of this. The series introduces three helpers, i.e. bitmap_alloc(), bitmap_zalloc() and bitmap_free(), to make it more cleaner. Patch 1 is a preparatory to avoid namespace collisions between bitmap API and MD bitmap. No functional changes intended. Patch 2 is just orphaned from previous release cycle. Patch 3 introduces new helpers. Patches 4 and 5 is just an example how to use new helpers. Locally I have like dozen of them against different subsystems and drivers. Ideally it would go through Input subsystem, thus, needs an Ack from MD maintainer(s). Since v2: - fix compilation issue in MD bitmap code - elaborate changes in commit message of patch 5 Since v1: - added namespace fix patch against MD bitmap API - moved functions to lib/bitmap.c to avoid circular dependencies - appended Dmitry's tags Andy Shevchenko (5): md: Avoid namespace collision with bitmap API bitmap: Drop unnecessary 0 check for u32 array operations bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free() Input: gpio-keys - Switch to bitmap_zalloc() Input: evdev - Switch to bitmap API drivers/input/evdev.c | 16 +- drivers/input/keyboard/gpio_keys.c | 8 +- drivers/md/dm-raid.c | 6 +- drivers/md/md-bitmap.c | 301 +++++++++--------- drivers/md/md-bitmap.h | 46 +-- drivers/md/md-cluster.c | 16 +- drivers/md/md.c | 44 +-- .../md/persistent-data/dm-space-map-common.c | 12 +- drivers/md/raid1.c | 20 +- drivers/md/raid10.c | 26 +- drivers/md/raid5-cache.c | 2 +- drivers/md/raid5.c | 24 +- include/linux/bitmap.h | 8 + lib/bitmap.c | 28 +- 14 files changed, 283 insertions(+), 274 deletions(-) -- 2.17.1