From patchwork Fri Mar 29 15:09:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 10877273 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E4A241575 for ; Fri, 29 Mar 2019 15:11:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D165D2988A for ; Fri, 29 Mar 2019 15:11:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF4B92928A; Fri, 29 Mar 2019 15:11:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6940E2928A for ; Fri, 29 Mar 2019 15:11:42 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1h9t8h-0003gX-QO; Fri, 29 Mar 2019 15:09:51 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1h9t8e-0003ar-Er for xen-devel@lists.xenproject.org; Fri, 29 Mar 2019 15:09:48 +0000 X-Inumbo-ID: afb19e70-5234-11e9-8557-bfd80d2a7b2a Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id afb19e70-5234-11e9-8557-bfd80d2a7b2a; Fri, 29 Mar 2019 15:09:45 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id CC2F5AF9A; Fri, 29 Mar 2019 15:09:44 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org Date: Fri, 29 Mar 2019 16:09:04 +0100 Message-Id: <20190329150934.17694-20-jgross@suse.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190329150934.17694-1-jgross@suse.com> References: <20190329150934.17694-1-jgross@suse.com> Subject: [Xen-devel] [PATCH RFC 19/49] xen/sched: add domain pointer to struct sched_item X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Tim Deegan , Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Dario Faggioli , Julien Grall , Jan Beulich MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add a pointer to the domain to struct sched_item in order to avoid having to dereference the vcpu pointer of struct sched_item to find the related domain. Signed-off-by: Juergen Gross --- xen/common/schedule.c | 3 ++- xen/include/xen/sched-if.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/xen/common/schedule.c b/xen/common/schedule.c index 99660cee67..625d6287c2 100644 --- a/xen/common/schedule.c +++ b/xen/common/schedule.c @@ -257,7 +257,7 @@ static void sched_spin_unlock_double(spinlock_t *lock1, spinlock_t *lock2, static void sched_free_item(struct sched_item *item) { struct sched_item *prev_item; - struct domain *d = item->vcpu->domain; + struct domain *d = item->domain; if ( d->sched_item_list == item ) d->sched_item_list = item->next_in_list; @@ -293,6 +293,7 @@ static struct sched_item *sched_alloc_item(struct vcpu *v) v->sched_item = item; item->vcpu = v; + item->domain = d; for ( prev_item = &d->sched_item_list; *prev_item; prev_item = &(*prev_item)->next_in_list ) diff --git a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h index b5cbbbbcb1..9a524014d0 100644 --- a/xen/include/xen/sched-if.h +++ b/xen/include/xen/sched-if.h @@ -50,6 +50,7 @@ DECLARE_PER_CPU(struct cpupool *, cpupool); DECLARE_PER_CPU(struct sched_resource *, sched_res); struct sched_item { + struct domain *domain; struct vcpu *vcpu; void *priv; /* scheduler private data */ struct sched_item *next_in_list;