From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f199.google.com (mail-pg1-f199.google.com [209.85.215.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7715C327C00 for ; Fri, 24 Jul 2026 18:12:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784916775; cv=none; b=PBf55F6n5YPLZkZYS9ujcdiGR9C8q5Gl3AxSXkxDGxswu+hitt8ktbEXTDSfJ+28odCz5IY5yjEWv2zTwL9OHhT6w9PkbyYp6hG/boNQl2t5aOy2ndnU+qhzxZ0WAWNo5C9t7UqHYjVWPCn9nsIFj6HOynIj59Z8OGmQK8CZf1w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784916775; c=relaxed/simple; bh=9D5UkzbeLAreclXch87c0nr0VRwdKxvB8YfGnMcuC+o=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=GEds/wnMaEIOErJhf4IkuClt4oNmbTt9D99yWRNCDE+s3Yv5QeC8ZWetrBQvmkKpGsCLCBvEF5A33vFSDwgSiCzJ0nOncz0DQZQ7EuPGQ8L2o1C0S/4C+BNJFTFzqJ3w7yHPK8lscCln2Jr5NUfRG4eteUGcCw1BfI64lpD8efE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jstultz.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=IKZVJ9tp; arc=none smtp.client-ip=209.85.215.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jstultz.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="IKZVJ9tp" Received: by mail-pg1-f199.google.com with SMTP id 41be03b00d2f7-ca6bd8a190cso934412a12.0 for ; Fri, 24 Jul 2026 11:12:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1784916767; x=1785521567; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=YaTsrIC1+B3I6xZibbV+Jq2ZNzdvSf9XZbVKiCgTfV0=; b=IKZVJ9tpZpNX2EdEfQFbnxEnWxLQGGnROV5QYf0l+bLLhYrMuQNpTnaDhSiXgRclPz Xe55Ow7yeuwRc7OSc4IGpnaxJEEzomELdLrRgIcS/Hn1F2SKytkf9zUYmjKTAVwGEFIs 8HlRaetq/HB464db+VRh4/v+W3K48r+hX0rHv7jjFVBa0/mKnuoFjD5Nl6Qw+VxNvOtD ED34FTHkWOfsozVTuy2vEs5SBxGSlqZ0LYVaiCth5k+EOSv+g1lqNmOsQvf4ta6bNd3b KDoOAq0xBc481bV90KuYl8p1kHDlQyoNcJAND4muPYGiYoqQfID2PSZI+ckbHPjIH9+n NOSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784916767; x=1785521567; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=YaTsrIC1+B3I6xZibbV+Jq2ZNzdvSf9XZbVKiCgTfV0=; b=P7I6AGCrFsPQc7/kHgfdMUQp2C8sj8ya5LTVq6DZfFx5aRjDRVf2kxbypny48duri2 xw4zc9hS2SXFmEMsJ8McCJ/+cnnGKLUMugHwa2dlOLlvVqth2A9FD1WCOKc4OeXPoeVV DMlHQ1ebIE5HvNDTxcae/nomCEVEvAk6gc98jfRl3LnRcRlP1fjJmHlosDNnwEDQZEBo T949adeUZ0FDxT0C7qg66J2YW+vNLF6BeqNyu8TWIyt9V80NpqJgaiIB6aPdKPL11+G1 zD+l87EAm5lfrGkt7Oj165JS6PI+oLH2hewUQNgj3ZemMfEfQ+AS5Af4/FcMQSZx2/GJ GXrw== X-Gm-Message-State: AOJu0Yz9D2gv1aZkSOl5H/5K/bP7GOcv7cpokAIdZdmv4w9tIgXCcBB1 si+Y6mCoLndrulzaD5IkS6wAATpZDZRvG0xD+jjIiyVKZ3fSfSliW/sEGzq5UYIfp7MaG6YEiiU JLCnuaouvso1W/VYuWbM5sMKt0M7ZCdt7AzhBFlznC+Tra+6Lk55Q5bi2LbuIi6+KDzhaeBI1Qo 121hQ21pwmGADAkTW6JvJ3pfLGf10WxU8DU+AGixEbxY2VTV11 X-Received: from pfbc4.prod.google.com ([2002:a05:6a00:ad04:b0:84a:2e0d:e14f]) (user=jstultz job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:1701:b0:848:44c5:f801 with SMTP id d2e1a72fcca58-84e2b8c0f0fmr9152752b3a.33.1784916766240; Fri, 24 Jul 2026 11:12:46 -0700 (PDT) Date: Fri, 24 Jul 2026 18:12:19 +0000 In-Reply-To: <20260724181238.3445275-1-jstultz@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260724181238.3445275-1-jstultz@google.com> X-Mailer: git-send-email 2.55.0.229.g6434b31f56-goog Message-ID: <20260724181238.3445275-6-jstultz@google.com> Subject: [PATCH v31 5/9] sched: Switch rq->next_class in proxy_reset_donor() From: John Stultz To: LKML Cc: John Stultz , Joel Fernandes , Qais Yousef , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Valentin Schneider , Steven Rostedt , Ben Segall , Zimuzo Ezeozue , Will Deacon , Waiman Long , Boqun Feng , "Paul E. McKenney" , Metin Kaya , Xuewen Yan , K Prateek Nayak , Thomas Gleixner , Daniel Lezcano , Suleiman Souhlal , Andrea Righi , kuyo chang , hupu , Vasily Gorbik , kernel-team@android.com Content-Type: text/plain; charset="UTF-8" Similar to commit 04f80f8b12a0 ("sched: Switch rq->next_class on proxy_resched_idle()"), we should also set the rq->next_class when we call proxy_reset_donor(). Fixes: f13beb010e4a ("sched: Have try_to_wake_up() handle return-migration for PROXY_WAKING case") Signed-off-by: John Stultz --- Cc: Joel Fernandes Cc: Qais Yousef Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Juri Lelli Cc: Vincent Guittot Cc: Dietmar Eggemann Cc: Valentin Schneider Cc: Steven Rostedt Cc: Ben Segall Cc: Zimuzo Ezeozue Cc: Will Deacon Cc: Waiman Long Cc: Boqun Feng Cc: "Paul E. McKenney" Cc: Metin Kaya Cc: Xuewen Yan Cc: K Prateek Nayak Cc: Thomas Gleixner Cc: Daniel Lezcano Cc: Suleiman Souhlal Cc: Andrea Righi Cc: kuyo chang Cc: hupu Cc: Vasily Gorbik Cc: kernel-team@android.com --- kernel/sched/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 36e1db67a8374..564762ed36f2d 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3750,6 +3750,7 @@ static inline void proxy_reset_donor(struct rq *rq) WARN_ON_ONCE(rq->donor == rq->curr); put_prev_set_next_task(rq, rq->donor, rq->curr); + rq->next_class = rq->curr->sched_class; rq_set_donor(rq, rq->curr); zap_balance_callbacks(rq); resched_curr(rq); -- 2.55.0.229.g6434b31f56-goog