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[2620:137:e000::3:5]) by mx.google.com with ESMTPS id u4-20020a170903108400b001c09d893c94si3665718pld.612.2023.11.01.15.58.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Nov 2023 15:58:50 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=fQxpOUk8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id 5760D80C3A0A; Wed, 1 Nov 2023 15:58:45 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347312AbjKAW6d (ORCPT + 35 others); Wed, 1 Nov 2023 18:58:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232330AbjKAW6c (ORCPT ); Wed, 1 Nov 2023 18:58:32 -0400 Received: from mail-yw1-x1134.google.com (mail-yw1-x1134.google.com [IPv6:2607:f8b0:4864:20::1134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C629DC1 for ; Wed, 1 Nov 2023 15:58:29 -0700 (PDT) Received: by mail-yw1-x1134.google.com with SMTP id 00721157ae682-5a82f176860so4440097b3.1 for ; Wed, 01 Nov 2023 15:58:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1698879509; x=1699484309; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=go9MsBs3kshTdYS1OGG6zGV5mB8GAcndMsaSv16whFQ=; b=fQxpOUk8Srjlzg4HEqBpyLixswTTIhhwCzxj5QIFaKGtvhlcwLkh5sytnhEKWLm/eB 3MRC8CjKDfqs5UeKWsj7strLuxXNGeHDFOV36zcGnsv7kkj+rgzbzFyz5tTiQseALIs5 3zxnVPC1yXdZ0Uqp4YtNiQuHUclrHz0VO+lvxkxt5alRiJ5VA0LMmvcYCRz9QGow+auA cfq43DXz/tb47WtKu/BonRARy1+W3OQiFozA/0uSztIVPFPilePaAB2KURCsLl7wewAh T2ceGlhMcqi76dHrPNFmZg3Ecy9dQPo8NpesApOGadIX1pa3vhgQ39WMmYkOjyOhDl+h i2Ng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698879509; x=1699484309; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=go9MsBs3kshTdYS1OGG6zGV5mB8GAcndMsaSv16whFQ=; b=V8D+5ZbRPXV8KMwqld0skXDSNMuqIo2kKAqGQMDSfz5m7OL068bR50sIn5NF9SbDjI bojnzB8Ww21ULK4Puag456Xh7cyByP5btXtj8SzA40arEmOaNdZc7wiVIXgOCZDILzCo ydfnO9dqEb/Jrn8XnqC8M63UpRAlLY5ScbG7IMnWOkRjF6qPcF+pM+MSAUJQD2vZCfSQ D/1Un5hwkx5lf71SXD98n7hap0ykjGQrAz+jppAVJsb9XDm5bvgADkYbaispGKIp52HV oiidvqfmWLc13IEexwC15sbnQkWICEAme0s73nOEYnTY9dSHb15b1FhoEoRmhEQ8iPwV 4H8w== X-Gm-Message-State: AOJu0Yz7PsvHeED3OaJctZ5FF6zM8CPKnyXo1E8kRHHgFUfWb9uCzvyp r7WgXj6B6Qzg5IqyeCYcGm5QaNEi0iV81A== X-Received: by 2002:a81:ef0a:0:b0:5a7:aa54:42b1 with SMTP id o10-20020a81ef0a000000b005a7aa5442b1mr15615714ywm.28.1698879508881; Wed, 01 Nov 2023 15:58:28 -0700 (PDT) Received: from localhost ([50.221.102.30]) by smtp.gmail.com with ESMTPSA id u131-20020a817989000000b005a7c829dda2sm518469ywc.84.2023.11.01.15.58.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Nov 2023 15:58:28 -0700 (PDT) From: Yury Norov To: Thomas Gleixner , linux-kernel@vger.kernel.org Cc: Yury Norov , Andy Shevchenko , Rasmus Villemoes Subject: [PATCH 1/4] cpumask: introduce for_each_cpu_and_from() Date: Wed, 1 Nov 2023 15:58:17 -0700 Message-Id: <20231101225820.51342-2-yury.norov@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231101225820.51342-1-yury.norov@gmail.com> References: <20231101225820.51342-1-yury.norov@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Wed, 01 Nov 2023 15:58:45 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1781404302144953304 X-GMAIL-MSGID: 1781404302144953304 Similarly to for_each_cpu_and(), introduce a for_each_cpu_and_from(), which is handy when it's needed to traverse 2 cpumasks or bitmaps, starting from a given position. Signed-off-by: Yury Norov --- include/linux/cpumask.h | 11 +++++++++++ include/linux/find.h | 3 +++ 2 files changed, 14 insertions(+) diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index f10fb87d49db..fc9f9d86229a 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -332,6 +332,17 @@ unsigned int __pure cpumask_next_wrap(int n, const struct cpumask *mask, int sta #define for_each_cpu_and(cpu, mask1, mask2) \ for_each_and_bit(cpu, cpumask_bits(mask1), cpumask_bits(mask2), small_cpumask_bits) +/** + * for_each_cpu_and_from - iterate over every cpu in both masks starting from a given cpu + * @cpu: the (optionally unsigned) integer iterator + * @mask1: the first cpumask pointer + * @mask2: the second cpumask pointer + * + * After the loop, cpu is >= nr_cpu_ids. + */ +#define for_each_cpu_and_from(cpu, mask1, mask2) \ + for_each_and_bit_from(cpu, cpumask_bits(mask1), cpumask_bits(mask2), small_cpumask_bits) + /** * for_each_cpu_andnot - iterate over every cpu present in one mask, excluding * those present in another. diff --git a/include/linux/find.h b/include/linux/find.h index 5e4f39ef2e72..dfd3d51ff590 100644 --- a/include/linux/find.h +++ b/include/linux/find.h @@ -563,6 +563,9 @@ unsigned long find_next_bit_le(const void *addr, unsigned (bit) = find_next_and_bit((addr1), (addr2), (size), (bit)), (bit) < (size);\ (bit)++) +#define for_each_and_bit_from(bit, addr1, addr2, size) \ + for (; (bit) = find_next_and_bit((addr1), (addr2), (size), (bit)), (bit) < (size); (bit)++) + #define for_each_andnot_bit(bit, addr1, addr2, size) \ for ((bit) = 0; \ (bit) = find_next_andnot_bit((addr1), (addr2), (size), (bit)), (bit) < (size);\