From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4BD7233C185 for ; Thu, 20 Nov 2025 15:23:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763652212; cv=none; b=tl0SN1WYpjOugtqonbHc1W3f43BM3+viVnC9BNkkVGJEPvZrwdhZDnVM3Jwib9SdCR1UwyQYYNxO/Vk+YOG5UJSM/WFNo49cKDfOEzZpFGBCBDLXiVaHBN+CNMyuCT4l7SCyNmfc/SOnMJB7Wxz4oU1Gvv9pmFoNy8dXpwj6CIk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763652212; c=relaxed/simple; bh=wtA8P4YhuyNMPz0GRNMyArJNhES4396z1nZoDVvjR/g=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=n5JqtELFjeXJnh2qAh3suN3TXwr+ZRLHex1aGO4rZdVlHaaIBSjuUPGm2UXfQ5twBoDZ5SHzFv96+QPpZuKBhqnxdsFG+r6GixeTIVN6Tg6kR9gfCkRZvzUIZaCrykDfXGbVUw2fvXZNrC8zZf3eBEIXFAq5aXegkfCYSvvmpGA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=FE7QsTvR; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b=UgoyoJXL; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FE7QsTvR"; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b="UgoyoJXL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1763652210; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=wtA8P4YhuyNMPz0GRNMyArJNhES4396z1nZoDVvjR/g=; b=FE7QsTvRAi16af9NGk7pMWvPmlEAbQSlRcRrby+AA0OmvFM165BdfTJI5B8iB/Qwy1715P VDwnjmAaBO3qs3jzi2m+czQR03dXsy4wEwogy7bW4/uGezqsSd+vxOIGrZgvAeIpr+9C11 MWCEeC75c+iNiOWarGHTFzL8hMNHJ0U= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-538-HX36yCweOrKz7-gYieDfrw-1; Thu, 20 Nov 2025 10:23:22 -0500 X-MC-Unique: HX36yCweOrKz7-gYieDfrw-1 X-Mimecast-MFC-AGG-ID: HX36yCweOrKz7-gYieDfrw_1763652201 Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-47788165c97so6645895e9.0 for ; Thu, 20 Nov 2025 07:23:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1763652201; x=1764257001; darn=vger.kernel.org; h=mime-version:user-agent:content-transfer-encoding:autocrypt :references:in-reply-to:date:cc:to:from:subject:message-id:from:to :cc:subject:date:message-id:reply-to; bh=wtA8P4YhuyNMPz0GRNMyArJNhES4396z1nZoDVvjR/g=; b=UgoyoJXLx/pmf0IvvT/CRP17wANB53S4k60dz/AFiYzXQwYbQE015XrQUBpAnH1W7i W8u399fu/muUJvWrkHmAw+j1BrY46GpY49lytRtsTWHFVBCkHJgaDgiGRzH4sliLgJaE vfmZfXD//wDyabbhGXyXNRTVPlqzA7/IgFhtwlInbJozQRIzn37WxoJ/v4v6V0zKHa87 FMDP2cwwcm18uQe3U5TgtnCgLTxvfCBBpREo92rxiGbHKdgc6Zk0yBssLCroQpsW564Z SgQQ2fwpdPLrncF4iav+5PikNCQEo9m7SJGOiqt+4+/YIV8TZp+iVLYU1gbr3q4hFUrp 1oOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763652201; x=1764257001; h=mime-version:user-agent:content-transfer-encoding:autocrypt :references:in-reply-to:date:cc:to:from:subject:message-id:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=wtA8P4YhuyNMPz0GRNMyArJNhES4396z1nZoDVvjR/g=; b=r8eUM+CceQ/3iJnhaQiDZMJrzMuK7OBgkAhM13X/9P9Y+UI7Ab25t9RIIg/1o8uBvz tRXzfwqNe4mAeraFljZymLZA1FmBsRISob0UCU0c8LF14lmFN77zqQjHktGJ58x74oNf +80Gj300tEr5afhpLF2Obz0HY993pdBWirxUMcY2jAcjP7KuhtPOn9mKCqjEpgRX5pa4 yzD6nz2P1WZ0TT3RnRebLOlTOYYzMr394i6NsJjsQRrgH4CPmzCoaI1C0mnUUy9/LTcT eAtMmC3AqNM6HYADqFwjn1gTSQpuiXx5kKTzr5Cw4+ScL6ALW7FQxUga2xYvHOg1Fq30 5fSg== X-Forwarded-Encrypted: i=1; AJvYcCWsyekMq1FKQln3WA86QCMGNt9L2QUyD3y8/kCNCmg5SOq4XnAZv19YSjs+d0DgaVZah/1s6RDmQlF18sc=@vger.kernel.org X-Gm-Message-State: AOJu0YzYYg8RjNyvnD6LtcpsII7jfsdyTwqJQ83B+AKC4+kmJJ7KsCBu So12ihkfC+4Yb4zeKb0/JMHVP9DU6TD+QsUO7nk+Lis8iCVRYYboQUjHbL3IA9CYTNJfg16WWZO 1jJTZJ5WC0Z3QjnN5G/CGauRJdJR2ICrca8L7fjO/UPwFRW3/MXegYojtRt14go0PBg== X-Gm-Gg: ASbGncte1BXSp4q6i0GyK/a7nIxb0NF+IsbgAb6eidtJ/H22zDyzbC3Rb/Ji+w2A60X FnmHLWjpjEahGhRevU/j10BAhgrixkGu2/SsZSV5jzJFcfF2tiqLkq3ZJscL0zi+2ACSC4uA05j BX2mBEngy4yDAU95xdNIDzctOWtQ6GG3b8gxJM5UbkLbLN+aiD9U57JB1pHBhACaNUHZmuiHMZI 8O7EU9r+jy+jdfHT/OwyE1ZUS36bbGfLyTkDBYAhnasHYAE2jkr57skIN1yYU5/2aGYvMEl/Ol7 oW2mFrVMx9fZymQAs+lapgV2fRgVSDVeRE89AyNb6aEDlbQtEfhBzvu8VGNqgoUdngJTumH0kbL KC6A+pDJgAljNMiVCiF9Z19fCYlvsiJ7xOkA= X-Received: by 2002:a05:600c:458e:b0:46e:396b:f5ae with SMTP id 5b1f17b1804b1-477bac0cfb5mr30011205e9.16.1763652201056; Thu, 20 Nov 2025 07:23:21 -0800 (PST) X-Google-Smtp-Source: AGHT+IGy3+PUz763jpiml2bMLLIyWSLQAApFGOT5QOpV61mqnnUHnTH4kqCJ9TXR8m0+gB7qVES4nQ== X-Received: by 2002:a05:600c:458e:b0:46e:396b:f5ae with SMTP id 5b1f17b1804b1-477bac0cfb5mr30010685e9.16.1763652200588; Thu, 20 Nov 2025 07:23:20 -0800 (PST) Received: from gmonaco-thinkpadt14gen3.rmtit.csb ([185.107.56.42]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-477b82d8251sm52544495e9.6.2025.11.20.07.23.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Nov 2025 07:23:20 -0800 (PST) Message-ID: <0c5d224858b31f66a9a166c990a393cb2a121162.camel@redhat.com> Subject: Re: [PATCH v16 7/7] timers/migration: Exclude isolated cpus from hierarchy From: Gabriele Monaco To: Thomas Gleixner , linux-kernel@vger.kernel.org, Anna-Maria Behnsen , Frederic Weisbecker , Waiman Long Cc: "John B. Wyatt IV" , "John B. Wyatt IV" Date: Thu, 20 Nov 2025 16:23:18 +0100 In-Reply-To: <87ms4gk9wd.ffs@tglx> References: <20251120145653.296659-1-gmonaco@redhat.com> <20251120145653.296659-8-gmonaco@redhat.com> <87ms4gk9wd.ffs@tglx> Autocrypt: addr=gmonaco@redhat.com; prefer-encrypt=mutual; keydata=mDMEZuK5YxYJKwYBBAHaRw8BAQdAmJ3dM9Sz6/Hodu33Qrf8QH2bNeNbOikqYtxWFLVm0 1a0JEdhYnJpZWxlIE1vbmFjbyA8Z21vbmFjb0BrZXJuZWwub3JnPoiZBBMWCgBBFiEEysoR+AuB3R Zwp6j270psSVh4TfIFAmjKX2MCGwMFCQWjmoAFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4AACgk Q70psSVh4TfIQuAD+JulczTN6l7oJjyroySU55Fbjdvo52xiYYlMjPG7dCTsBAMFI7dSL5zg98I+8 cXY1J7kyNsY6/dcipqBM4RMaxXsOtCRHYWJyaWVsZSBNb25hY28gPGdtb25hY29AcmVkaGF0LmNvb T6InAQTFgoARAIbAwUJBaOagAULCQgHAgIiAgYVCgkICwIEFgIDAQIeBwIXgBYhBMrKEfgLgd0WcK eo9u9KbElYeE3yBQJoymCyAhkBAAoJEO9KbElYeE3yjX4BAJ/ETNnlHn8OjZPT77xGmal9kbT1bC1 7DfrYVISWV2Y1AP9HdAMhWNAvtCtN2S1beYjNybuK6IzWYcFfeOV+OBWRDQ== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.1 (3.58.1-1.fc43) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2025-11-20 at 16:21 +0100, Thomas Gleixner wrote: > On Thu, Nov 20 2025 at 15:56, Gabriele Monaco wrote: > > + * This function returns false during early boot and the isolation log= ic is > > + * enabled only after isolated CPUs are marked as unavailable at late = boot. > > + * The tick CPU can be isolated at boot, however we cannot mark it as > > + * unavailable to avoid having no global migrator for the nohz_full CP= Us. > > This > > + * should be ensured by the callers of this function: implicitly from > > hotplug > > + * callbacs and explicitly in tmigr_init_isolation() and >=20 > 'callbacs' is still not correct :) >=20 > Other than that: >=20 > Reviewed-by: Thomas Gleixner Damn, I knew I was missing something.. Should I send a v17 for this or just re-send this patch? Thanks, Gabriele