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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F7CCC001B0 for ; Thu, 6 Jul 2023 10:02:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232290AbjGFKCA (ORCPT ); Thu, 6 Jul 2023 06:02:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231628AbjGFKBw (ORCPT ); Thu, 6 Jul 2023 06:01:52 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02F201986; Thu, 6 Jul 2023 03:01:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 0AF05618EC; Thu, 6 Jul 2023 10:01:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DAD42C433C8; Thu, 6 Jul 2023 10:01:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1688637709; bh=1uw7peNXWbOZLFcB9mq2BFk7tvD/drZrJVzzlsJCqFE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=snLh+kbUGeVCMoA+6j1NiXgyGq/FjkZbnGTrm9nidVQVXwFkv/QVK3CL/JdJdM6DD Mk/HKookNBQppeS2LPYd8249BnWwqm4wB2vqfiloLXWNRHrYUMi0Z4zu8O6lJVeXcl ETwReQjSDLhKY6oTbxVrRpRplbDZIaziMv0oJAOlYhOqurXwm/n6Il2lb6fXtAmq0B 1nhf0VTZF3pX/pgxr7OcXS1KSRfjTFs6gMLl3gWBfp3aQ4HB5y8TxFmtVk8jpGSdaz sF03Ca3zNDHqfqeHjaHqdg5fmoQgyCM4cSWpq0Yd6oOGBvocG3HDVvgjYE8xKbJwWp G85Mz/024v2zQ== Date: Thu, 6 Jul 2023 12:01:46 +0200 From: Frederic Weisbecker To: Valentin Schneider Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, bpf@vger.kernel.org, x86@kernel.org, Nicolas Saenz Julienne , Steven Rostedt , Masami Hiramatsu , Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , Andy Lutomirski , Peter Zijlstra , "Paul E. McKenney" , Andrew Morton , Uladzislau Rezki , Christoph Hellwig , Lorenzo Stoakes , Josh Poimboeuf , Kees Cook , Sami Tolvanen , Ard Biesheuvel , Nicholas Piggin , Juerg Haefliger , Nicolas Saenz Julienne , "Kirill A. Shutemov" , Nadav Amit , Dan Carpenter , Chuang Wang , Yang Jihong , Petr Mladek , "Jason A. Donenfeld" , Song Liu , Julian Pidancet , Tom Lendacky , Dionna Glaze , Thomas =?iso-8859-1?Q?Wei=DFschuh?= , Juri Lelli , Daniel Bristot de Oliveira , Marcelo Tosatti , Yair Podemsky Subject: Re: [RFC PATCH 11/14] context-tracking: Introduce work deferral infrastructure Message-ID: References: <20230705181256.3539027-1-vschneid@redhat.com> <20230705181256.3539027-12-vschneid@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, Jul 06, 2023 at 12:23:57AM +0200, Frederic Weisbecker wrote: > diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h > index fdd537ea513f..ec3d172601c5 100644 > --- a/include/linux/context_tracking_state.h > +++ b/include/linux/context_tracking_state.h > @@ -10,14 +10,19 @@ > #define DYNTICK_IRQ_NONIDLE ((LONG_MAX / 2) + 1) > > enum ctx_state { > + /* Following are values */ > CONTEXT_DISABLED = -1, /* returned by ct_state() if unknown */ > CONTEXT_KERNEL = 0, > CONTEXT_IDLE = 1, > CONTEXT_USER = 2, > - CONTEXT_GUEST = 3, > - CONTEXT_MAX = 4, > + /* Following are bit numbers */ > + CONTEXT_WORK = 2, > + CONTEXT_MAX = 16, > }; > > +#define CONTEXT_MASK (BIT(CONTEXT_WORK) - 1) > +#define CONTEXT_WORK_MASK ((BIT(CONTEXT_MAX) - 1) & ~(BIT(CONTEXT_WORK) - 1)) > + > /* Even value for idle, else odd. */ > #define RCU_DYNTICKS_IDX CONTEXT_MAX And that should be: #define RCU_DYNTICKS_IDX BIT(CONTEXT_MAX) Did I mention it's not even build tested? :o)