From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [IPv6:2001:a60:0:28:0:1:25:1]) by sourceware.org (Postfix) with ESMTPS id 230A83858437 for ; Tue, 1 Feb 2022 22:33:58 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 230A83858437 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=nefkom.net Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4JpKTw5wXRz1sQqt; Tue, 1 Feb 2022 23:33:56 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4JpKTw4yZxz1qqkB; Tue, 1 Feb 2022 23:33:56 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id i9xJa7zE9ieC; Tue, 1 Feb 2022 23:33:55 +0100 (CET) X-Auth-Info: C6H7rOAoIS7KP3kIuRfaH0HBl2Y1sHLzAV56iR13Dc37w9ALJBLyPUWIcPWtmq50 Received: from igel.home (ppp-46-244-190-116.dynamic.mnet-online.de [46.244.190.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Tue, 1 Feb 2022 23:33:55 +0100 (CET) Received: by igel.home (Postfix, from userid 1000) id 685EC2C39D9; Tue, 1 Feb 2022 23:33:55 +0100 (CET) From: Andreas Schwab To: Gleb Fotengauer-Malinovskiy Cc: libc-alpha@sourceware.org Subject: Re: [PATCH v2] linux: __get_nprocs_sched: initialize cpu_bits array with zeroes [BZ #28850] References: <20220201215644.473902-1-glebfm@altlinux.org> <20220201221407.500964-1-glebfm@altlinux.org> X-Yow: HOORAY, Ronald!! Now YOU can marry LINDA RONSTADT too!! Date: Tue, 01 Feb 2022 23:33:55 +0100 In-Reply-To: <20220201221407.500964-1-glebfm@altlinux.org> (Gleb Fotengauer-Malinovskiy's message of "Tue, 1 Feb 2022 22:14:07 +0000") Message-ID: <87a6fa2p4c.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Status: No, score=-10.2 required=5.0 tests=BAYES_00, GIT_PATCH_0, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Feb 2022 22:33:59 -0000 On Feb 01 2022, Gleb Fotengauer-Malinovskiy wrote: > --- > sysdeps/unix/sysv/linux/getsysstats.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c > index 4798cc337e..b0a7663f56 100644 > --- a/sysdeps/unix/sysv/linux/getsysstats.c > +++ b/sysdeps/unix/sysv/linux/getsysstats.c > @@ -41,6 +41,7 @@ __get_nprocs_sched (void) > > /* This cannot use malloc because it is used on malloc initialization. */ > __cpu_mask cpu_bits[cpu_bits_size / sizeof (__cpu_mask)]; > + CPU_ZERO_S (cpu_bits_size, (cpu_set_t*) cpu_bits); > int r = INTERNAL_SYSCALL_CALL (sched_getaffinity, 0, cpu_bits_size, > cpu_bits); > if (r > 0) r is the actual size of the cpu mask, which can conveniently be passed to CPU_COUNT_S. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."