From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id AF6343858C83 for ; Tue, 1 Feb 2022 17:17:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org AF6343858C83 Received: from mail-ot1-f72.google.com (mail-ot1-f72.google.com [209.85.210.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-377--dCMn2QLOjaKG5Sy2iQfHQ-1; Tue, 01 Feb 2022 12:17:55 -0500 X-MC-Unique: -dCMn2QLOjaKG5Sy2iQfHQ-1 Received: by mail-ot1-f72.google.com with SMTP id m28-20020a05683023bc00b005a485c04f3fso5079951ots.4 for ; Tue, 01 Feb 2022 09:17:54 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=g3uGe44VoHoW2XUBOwzFPmyNfum4jm4nAwtNYiInOCc=; b=1E7CUf1Hf8NF35+iSy8zXkQL9T8sDgINojHj0lC/dab5YPwEHzcH7Y8GHUHjzE81sM MhEULUc9Mx18EjR02uLaNonvZBeHQIRAVStkdso2fIy5inVKVbqGnYcd+FTK3VFrP2h5 aejwyEyXA9PI+SaNTooCFn/k0lVsu2Ao7PUTe4erXCi6DctIAN1pTZ8aRUWT5++o/+yV lR0gG6JWR47+bGv9R+45mTl3PddTiQYxcqwovu78e+6oZ5q5lPG2rjS8i1DkinNv26Pi IKQrYA95A41LK4+6xjWjHGDT4CpTgnFQ7EMdOalFv0GBeW+c7qzPNFnYvAbw7N8tzWlo l7wQ== X-Gm-Message-State: AOAM532Ctp4HwUKywma1EBjg3naCpKMvgFc9jXqSbbVX4Z9YZ7q0aC4N TY1oIk7+YAmM9EoLYUCZQy3PXv6GzxPDO8jG+H+SMNvluBhLrHtJ3rEBE8AIDuS9N2RMrdM773V ygjG/IZdKtDOsz22EON+lpLu0vvw5fr4= X-Received: by 2002:a05:6808:1181:: with SMTP id j1mr1772717oil.182.1643735874246; Tue, 01 Feb 2022 09:17:54 -0800 (PST) X-Google-Smtp-Source: ABdhPJywCdztZRlui+q/yhIl1Z08DTjvPRsCMj4/Xz/XxSV/I4+Q/vnOmElsCce38sVZfGGtji//KhXP9GyAhSdgTi0= X-Received: by 2002:a05:6808:1181:: with SMTP id j1mr1772703oil.182.1643735874019; Tue, 01 Feb 2022 09:17:54 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Thomas Rodgers Date: Tue, 1 Feb 2022 09:17:43 -0800 Message-ID: Subject: Re: [PATCH] Strengthen memory memory order for atomic::wait/notify To: Jonathan Wakely Cc: "libstdc++" , gcc Patches X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, HTML_MESSAGE, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, 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 Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: libstdc++@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++ mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Feb 2022 17:17:57 -0000 Tested x86_64-pc-linux-gnu, committed to master. Backported to GCC-11. On Sun, Jan 16, 2022 at 12:31 PM Jonathan Wakely wrote: > > > On Sun, 16 Jan 2022 at 01:48, Thomas Rodgers via Libstdc++ < > libstdc++@gcc.gnu.org> wrote: > >> This patch updates the memory order of atomic accesses to the waiter's >> count to match libc++'s usage. It should be backported to GCC11. >> > > The commit subject line says "memory memory order", OK for trunk and > gcc-11 with that fixed. > > >> Tested x86_64-pc-linux-gnu. >> >