From patchwork Sat Dec 17 20:48:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jens Axboe X-Patchwork-Id: 13075926 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 B8746C4332F for ; Sat, 17 Dec 2022 20:48:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229710AbiLQUs6 (ORCPT ); Sat, 17 Dec 2022 15:48:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41684 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229625AbiLQUst (ORCPT ); Sat, 17 Dec 2022 15:48:49 -0500 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0A0CBE30 for ; Sat, 17 Dec 2022 12:48:45 -0800 (PST) Received: by mail-pg1-x535.google.com with SMTP id 79so3849414pgf.11 for ; Sat, 17 Dec 2022 12:48:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=5o+Q51zxFtdCWSIgmUXlOUsotdOlGh5co2IgFh2s2IU=; b=bn5gdmmgKej6nd7jYSA9vyXwpbphkzDoo1uXvt17E4Kn6Eve35ZUfZUFIqHhfMhAWZ f4msMuIAAJ0/X8Fzur1vgJVteuyXRpY12MO9S/9D6rsbQKti/dGJ0NEn+y8nK8shGPa/ uYKAXXYHoP7dzBjwtJ/8OED5m89LbvEtFEgcwWj0tAAVRVXS0aZ+qVhMTPP8lW4baK5v CeBzUxMRf31GhnH3mxrSbuN93+T/kxAQahga/UG9/9LySh7ZGbkkbeWEqjG+ZQO7iHDE IcGArlOTWVJp1qd2T4oVGpSckmpelga4OVyTgQTYsRc1d3nUTnbqJ9erqoQnqilzt0JR +9+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=5o+Q51zxFtdCWSIgmUXlOUsotdOlGh5co2IgFh2s2IU=; b=kUMa5V3oRn7Wr72nlqlG2gfSuvDJPd0eKuGFOveWnhD66wUKb6DBhraXdrXfkvAwoh 4/lltZvTQrTeS1FtR6Dp8eH8vO7UiSVwn/cYff+oPDgG9qe3pE4AYHqyN8H9Ts+68h5I TS8vux9OZqgEEdtgDQgO5Rrr886fzqY/kH5h9Rs3bUwmQdFd6vO7dpUiJ6AjF+L6pqKH cVbmq6w6qLxQU5cvg+eTLM5mXy1iXeHAXRbH+XpWyBdxiYzbRnULhpckQAz1ToAT/3so ggk/rIplm8h1FVoMZEIryfsxCSIeV+6bZuCigF80XIAEdKC3ThId+Cl08E+8dyNHbk/r LIVA== X-Gm-Message-State: ANoB5pnJl8IX11Oq4/EvX5JH3K1aXUykQzBb/noNnh869U+RmgeoxMwm t1/YWy8uSkCIg9fJcSEx6cHEvrOLbr7Cu52ZQmk= X-Google-Smtp-Source: AA0mqf5p+F5sgnqlheLD59cZlywDwKkwo6LWsnL31FapUxuNsdLV1kI5GdieRlKJ760l58a9Edcx7A== X-Received: by 2002:aa7:958e:0:b0:577:36aa:ae03 with SMTP id z14-20020aa7958e000000b0057736aaae03mr8772558pfj.1.1671310124500; Sat, 17 Dec 2022 12:48:44 -0800 (PST) Received: from localhost.localdomain ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id i62-20020a62c141000000b0057737e403d9sm3528761pfg.209.2022.12.17.12.48.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Dec 2022 12:48:43 -0800 (PST) From: Jens Axboe To: io-uring@vger.kernel.org Cc: dylany@meta.com, asml.silence@gmail.com Subject: [PATCHSET 0/2] tw/wakeup tweaks Date: Sat, 17 Dec 2022 13:48:38 -0700 Message-Id: <20221217204840.45213-1-axboe@kernel.dk> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hi, One patch tweaks when we think we have task_work pending to be more inclusive rather than gate on TIF_NOTIFY_SIGNAL, patch two ensures we don't do extra loops io_cqring_wait() - and just as importantly, that the expected run path for task_work will not have the task itself adding to the ctx->cq_wait waitqueue.