From patchwork Tue Jul 5 20:56:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 12907050 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FF65C43334 for ; Tue, 5 Jul 2022 20:58:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232298AbiGEU6X (ORCPT ); Tue, 5 Jul 2022 16:58:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35268 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232069AbiGEU5I (ORCPT ); Tue, 5 Jul 2022 16:57:08 -0400 Received: from smtp.smtpout.orange.fr (smtp08.smtpout.orange.fr [80.12.242.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACE6517E23 for ; Tue, 5 Jul 2022 13:57:02 -0700 (PDT) Received: from pop-os.home ([90.11.190.129]) by smtp.orange.fr with ESMTPA id 8pbPoGbFuNUm18pbPooK5u; Tue, 05 Jul 2022 22:57:00 +0200 X-ME-Helo: pop-os.home X-ME-Auth: YWZlNiIxYWMyZDliZWIzOTcwYTEyYzlhMmU3ZiQ1M2U2MzfzZDfyZTMxZTBkMTYyNDBjNDJlZmQ3ZQ== X-ME-Date: Tue, 05 Jul 2022 22:57:00 +0200 X-ME-IP: 90.11.190.129 From: Christophe JAILLET To: Thomas Bogendoerfer Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , linux-mips@vger.kernel.org Subject: [PATCH v2] MIPS: mm: Use the bitmap API to allocate bitmaps Date: Tue, 5 Jul 2022 22:56:51 +0200 Message-Id: <4b64934fe14f1c2d30193df01e67a52022703b95.1656961396.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Use bitmap_zalloc() instead of hand-writing them. It is less verbose and it improves the semantic. While at it, turn a bitmap_clear() into an equivalent bitmap_zero(). It is also less verbose. Signed-off-by: Christophe JAILLET --- v1 --> v2: don't speak about bitmap_free() in the log message (Sergey Shtylyov) --- arch/mips/mm/context.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/mips/mm/context.c b/arch/mips/mm/context.c index b25564090939..966f40066f03 100644 --- a/arch/mips/mm/context.c +++ b/arch/mips/mm/context.c @@ -67,7 +67,7 @@ static void flush_context(void) int cpu; /* Update the list of reserved MMIDs and the MMID bitmap */ - bitmap_clear(mmid_map, 0, num_mmids); + bitmap_zero(mmid_map, num_mmids); /* Reserve an MMID for kmap/wired entries */ __set_bit(MMID_KERNEL_WIRED, mmid_map); @@ -277,8 +277,7 @@ static int mmid_init(void) WARN_ON(num_mmids <= num_possible_cpus()); atomic64_set(&mmid_version, asid_first_version(0)); - mmid_map = kcalloc(BITS_TO_LONGS(num_mmids), sizeof(*mmid_map), - GFP_KERNEL); + mmid_map = bitmap_zalloc(num_mmids, GFP_KERNEL); if (!mmid_map) panic("Failed to allocate bitmap for %u MMIDs\n", num_mmids);