From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-21.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30283C4338F for ; Tue, 27 Jul 2021 10:11:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0D06461103 for ; Tue, 27 Jul 2021 10:11:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236222AbhG0KLI (ORCPT ); Tue, 27 Jul 2021 06:11:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45008 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236213AbhG0KLH (ORCPT ); Tue, 27 Jul 2021 06:11:07 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 919C7C061757 for ; Tue, 27 Jul 2021 03:11:07 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id p14-20020a05620a22eeb02903b94aaa0909so11182452qki.15 for ; Tue, 27 Jul 2021 03:11:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=jNe6UiFjL/yCQ11Ml+WOvh6Eo1auwticKxQucNJjbhY=; b=p8LPEDRndOuWRUaIz3zsmXtaoE3tspzzxc8YjSvfEPoe5hYHeRRnkf9Jsgn94/4ttG PBXhaQLFnvyzeysCrX9jMx3r4fDHFHBdvQNpxSC8GKf9Bck7LwX6Ch/KgDEsUCeW5qFZ 77+9j5uvdevxkeYaN/3K8NJCMFvRO17wGe6GoyXL+C4mptuyBaSoO4pv9kWCPU+v6uTo FVOKqShTrjOWzaSDwB7eku3lACVCMQKUxYZmag6RCIB2Wufzh9NcBUOFs9em4xT+XRrA Px5gIXbMzPKey+/zL7VafIdXWq/SVu3KcBek8/sZ6Y3l7qQBtSDp643sAVvSBDjy7Uwn P9nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=jNe6UiFjL/yCQ11Ml+WOvh6Eo1auwticKxQucNJjbhY=; b=SRLIqwq4tjr1GQYm+OQid1D1QU8ZtPaD29O+U/sRDTcqiFOL+5okmHq/G2Vu0TGyq6 CUuZnse6Smtl2SwETfmw+wcIeiB1FM7wP7w0fn9xrbYtUIzIMRmTubEfVbDbOBu5mNjg YnY+MMzG6tlO+IKIDw/gAJZVY/RfPB01MLjgbQ3HINWRnJtmUf/nekOyjBfZlKuXN/i8 oR1UD5lE8/n26a6DxTAOjRKNV8L+OmJ0InbFjzCIioHQbNKfGm8J7m8R7LO07m/w38L9 /8pfRVBBIISBGxA1M6r9iKyG3iSbbQfbk+Kym4QNCl7gtipPb/VDh/1YNTHt+AhNAdJm vW6Q== X-Gm-Message-State: AOAM533TX0lynXvhT6Za5Zgx5TZdrqZFYh5MZCbw7h7heLTO0kb4CMdU KoDKVX+a7Ot8Sl/ZSM/2OLmI7VrpxhH6 X-Google-Smtp-Source: ABdhPJzbHAGBDmH4enVITD6iifaJvlrcZpruOSv1EEydJvy2gPRI8lwbfdK8Cij+hq/ZMcMDVlgRUxyuco1m X-Received: from luke.lon.corp.google.com ([2a00:79e0:d:210:c468:e033:fa2b:3a6]) (user=qperret job=sendgmr) by 2002:a05:6214:1c1:: with SMTP id c1mr21651942qvt.37.1627380666621; Tue, 27 Jul 2021 03:11:06 -0700 (PDT) Date: Tue, 27 Jul 2021 11:11:00 +0100 Message-Id: <20210727101103.2729607-1-qperret@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.32.0.432.gabb21c7263-goog Subject: [PATCH 0/2] A couple of sched_getattr() fixes for DL From: Quentin Perret To: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , linux-kernel@vger.kernel.org Cc: Quentin Perret Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, In the context of [1] it became apparent that the way __getparam_dl() copies the sched_flags into the dl_entity struct for deadline tasks can have undesirable side effects. This series fixes two issues in that area causing sched_getattr() to report stale values or things it shouldn't report to userspace. Thanks, Quentin [1] https://lore.kernel.org/lkml/ad30be79-8fb2-023d-9936-01f7173164e4@arm.com/ Quentin Perret (2): sched/deadline: Fix reset_on_fork reporting of DL tasks sched: Don't report SCHED_FLAG_SUGOV in sched_getattr() kernel/sched/core.c | 1 + kernel/sched/deadline.c | 7 ++++--- kernel/sched/sched.h | 2 ++ 3 files changed, 7 insertions(+), 3 deletions(-) -- 2.32.0.432.gabb21c7263-goog