From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 530431F463 for ; Wed, 18 Dec 2019 14:58:32 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:cc:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=sZhxDI3If8ZrYVuB jZi4Ui9vqZUDGuK9VamhDAO2fQyYjapFGeION8Y59ovKTpsbIzGUQgcvHWwFMFws Y6YXeknYj1nvn9SQrEXkidlv29gjInVfdy/JgqYhPG8t+LAMOIoDHjLysfhlfjAN mKo7r4BxzaLGefHU41n4u1+FROM= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:cc:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; s=default; bh=PJ9yBSg8bSLVuSQDvck22D 5hTP8=; b=IDoXLQNcgxGmouJCbR+WyHzXxeSngJoa84JfeJW96C7sUvMJYtY6jx wE9yx/Ja3d2t6p650FK+qst1KcggbIiPlGz3yDz47YEdjgE3mF5SDd1O5/UriF6A OmXBrW9uvbOiHh/zjii728bD4fTazS152b73kS3q4ww8NWvXe0EQ4= Received: (qmail 40291 invoked by alias); 18 Dec 2019 14:58:30 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 40278 invoked by uid 89); 18 Dec 2019 14:58:30 -0000 Authentication-Results: sourceware.org; auth=none X-HELO: mail-pj1-f65.google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:autocrypt:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=My2XuouRd3qH1V1BEiS6vhjjTSGXye8/QS7ujOAGg88=; b=pXomPt17WNaz3f2tc0vpiGnXqhCcdyjG5gxYKgDkfQygMrLY6+Y5ojdPi1k/CW9VKX S097M7e/5S7YnIBaRf/xhf7D0Fw45Sj/5FSD58nW4qPltZ1b5RTut3oOVmFpIsos8ndt o/7+wUgXM/ZEVIUczVLFaUq9EEqfmmfBae5xDx2lkyiVXV84OAmKxK1fihVy2sUiiOxe rKNVsqV+ZyScmmqMmmNW2356rpWRV0hugAj5UrakFA9Oyf0Mlhkti5qJ7Kqa6MFWvIj/ bnSC2a3S1mSdd+NbTvhioli/DRdVE1gF18f5l3PI4D8bdlCbjUoY+EqCkxgsa2WQ+GNT m/DA== Subject: Re: [PATCH 16/16] linux: Optimize fallback 32-bit clock_getres To: Andreas Schwab Cc: libc-alpha@sourceware.org References: <20191217214728.2886-1-adhemerval.zanella@linaro.org> <20191217214728.2886-16-adhemerval.zanella@linaro.org> From: Adhemerval Zanella Message-ID: Date: Wed, 18 Dec 2019 11:58:22 -0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit On 18/12/2019 05:56, Andreas Schwab wrote: > On Dez 17 2019, Adhemerval Zanella wrote: > >> diff --git a/sysdeps/unix/sysv/linux/clock_getres.c b/sysdeps/unix/sysv/linux/clock_getres.c >> index 3d59f11d71..c1e1cf60c6 100644 >> --- a/sysdeps/unix/sysv/linux/clock_getres.c >> +++ b/sysdeps/unix/sysv/linux/clock_getres.c >> @@ -42,13 +42,21 @@ __clock_getres64 (clockid_t clock_id, struct __timespec64 *res) >> int r; >> /* Old 32-bit ABI with possible 64-bit time_t support. */ >> # ifdef __NR_clock_getres_time64 >> + /* Avoid issue a __NR_clock_getres_time64 syscall on kernels that do not >> + support 64-bit time_t. */ >> + static int time64_support = 1; >> + if (atomic_load_relaxed (&time64_support) == 1) > > Just != 0 should be enough. > > Andreas. > Ack.