From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 60FFE3CEBBB; Tue, 4 Aug 2026 10:39:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785840004; cv=none; b=doS6DAf+g+F4cHtFHlBOBNp2CZXnMa3qq6phVRkp3QfUOKMdkGNLzZoWV5v2A2mkA1v0BOXuhIweuhb9ZML3iAKLEwhlVsmsdAVZT9W8xgyAuJciqslRkO1RnHEDoWq2oCLgzIpvuHndXG0/EMn19sC0yPXGUe0ehimTs3Mst64= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785840004; c=relaxed/simple; bh=66Vr/fy3qYcTZO6v5sVMVw5Sihq2KQZzSp511oVKZTY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rc8fvoV0GqzxsYPI/nxu3byilMi4MpAZ1lmLOGmCwCKF5BptU013ZmZE2sXaNh7aVWcw2uQwyJGUJ4qOWilTa9/z/2hUdKy8amylqLBuz20bz0sbopVWPtnHZ/6Fok0A5jQeYNRNiUwiKjFL4n+B9HRogZ4p+s+qTx43gIMNtuo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=LGA1lkkR; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="LGA1lkkR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=MsldYqnXOycsS4y2/7KD3GU//XDAu63pq55swDGd2xw=; b=LGA1lkkRQbVX1KW9YPvaAmrSjX iVDDDoXj/8hc/CzXkHA5ffJ8pRRD8pKaS0GgylshFZGV1Gt51cxqLuoVgYiuV2+ASvLqawoyP37O2 ta0OHhxCiAPtEM7zdUElmcx4T8aqOOi6F0Y2q+lPdg8ionsZP3yHhQDAZ8wcCfqcYRJN5+hEbCGN8 sfZ+ukTa3ier64oRKtJsK+zhxdviWmRFE/G+2nNfwhkLzN58M0Lmk13/TM+rpL52AWovHxCh20cap NFJT1Jbuiblfw8ziL76Tp7Ia//DA11YVN9uCIT6u7MxpE8hBCpXj1BKi8NhSEyEoqHzzQKtxscgCI IVoTVISw==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.99.2 #2 (Red Hat Linux)) id 1wrCYe-00000009nOq-2bzw; Tue, 04 Aug 2026 10:39:40 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 5984030045A; Tue, 04 Aug 2026 12:39:38 +0200 (CEST) Date: Tue, 4 Aug 2026 12:39:38 +0200 From: Peter Zijlstra To: Dmitry Ilvokhin Cc: Ingo Molnar , Will Deacon , Boqun Feng , Waiman Long , Thomas Bogendoerfer , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Thomas Gleixner , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Juergen Gross , Ajay Kaher , Alexey Makhalov , Broadcom internal kernel review list , Paolo Bonzini , Vitaly Kuznetsov , Josh Poimboeuf , Jason Baron , Alice Ryhl , Steven Rostedt , Ard Biesheuvel , Boris Ostrovsky , Arnd Bergmann , Masami Hiramatsu , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, kvm@vger.kernel.org, xen-devel@lists.xenproject.org, linux-arch@vger.kernel.org, linux-trace-kernel@vger.kernel.org, kernel-team@meta.com Subject: Re: [PATCH 0/5] locking/qspinlock: Add contended_release tracepoint Message-ID: <20260804103938.GH776954@noisy.programming.kicks-ass.net> References: Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Aug 04, 2026 at 07:15:40AM +0000, Dmitry Ilvokhin wrote: > Patch 1 is Peter's draft from [1] and is missing his Signed-off-by. > Peter, please add it if you are happy with the patch. > > Dmitry Ilvokhin (4): > locking: Factor out queued_spin_release() > locking/qspinlock: Add contended_release tracepoint > tracing/lock: Use TRACE_EVENT_FN() for contended_release > x86/paravirt: Trace contended_release on unlock > > Peter Zijlstra (1): > x86/paravirt: Use static_call() for the paravirt spinlock ops Right, this all looks nice. Let me go queue this for the robots. Thanks!