Message ID | 1472077083-15022-3-git-send-email-cota@braap.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 37C5F607F0 for <patchwork-qemu-devel@patchwork.kernel.org>; Wed, 24 Aug 2016 22:18:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EAECC2913F for <patchwork-qemu-devel@patchwork.kernel.org>; Wed, 24 Aug 2016 22:18:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CE85129143; Wed, 24 Aug 2016 22:18:56 +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=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 48B432913F for <patchwork-qemu-devel@patchwork.kernel.org>; Wed, 24 Aug 2016 22:18:55 +0000 (UTC) Received: from localhost ([::1]:53578 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>) id 1bcgVa-0006f2-5H for patchwork-qemu-devel@patchwork.kernel.org; Wed, 24 Aug 2016 18:18:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52865) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <cota@braap.org>) id 1bcgV3-0006eJ-VO for qemu-devel@nongnu.org; Wed, 24 Aug 2016 18:18:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <cota@braap.org>) id 1bcgUy-0004Jp-UH for qemu-devel@nongnu.org; Wed, 24 Aug 2016 18:18:20 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:45058) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <cota@braap.org>) id 1bcgUw-0004FD-5O for qemu-devel@nongnu.org; Wed, 24 Aug 2016 18:18:16 -0400 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 9407F203FD; Wed, 24 Aug 2016 18:18:04 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute1.internal (MEProxy); Wed, 24 Aug 2016 18:18:04 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=braap.org; h=cc :date:from:in-reply-to:message-id:references:subject:to :x-sasl-enc:x-sasl-enc; s=mesmtp; bh=G26BSv3pBRPWClii+1idyujAK10 =; b=aeZIOBsXbobY2cUd67IFJaloM99kdgTxY5k9b3t0w9KLvHtXXh708q/Bv6V hh7t+gIlTwK0io04kka+A2rJlaUZxSAgMjvh1eflFmkr4AZsmn+heNWMX/FY+XLy QDF9Qf0km3bioCwzJ5UwJKyFonTVAzu9bK1jzULz96pA9mpo= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=cc:date:from:in-reply-to:message-id :references:subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=G26B Sv3pBRPWClii+1idyujAK10=; b=HSlylGXrKEJJGxOjbwrYwC6RsWiM1lWxpW5d 4Ugvp7IzjZEBllSpcJY7b8UDdVSiu1COdUknLwWWlBn9cl6iW0p3QCArYN3iug2P zPNu/B/DH2FhdJ/eLJYCu6VJpMC2P0V9hDdQMNYwZ0wKiB+OrFOUNSQTvKZ9LSsI LopNHBg= X-Sasl-enc: P7z2Bo/MW3d2lHFfMXVbSj8oAo9YEjXQGvrJNPyLvbFT 1472077084 Received: from localhost (flamenco.cs.columbia.edu [128.59.20.216]) by mail.messagingengine.com (Postfix) with ESMTPA id 57757F29CC; Wed, 24 Aug 2016 18:18:04 -0400 (EDT) From: "Emilio G. Cota" <cota@braap.org> To: Richard Henderson <rth@twiddle.net> Date: Wed, 24 Aug 2016 18:17:58 -0400 Message-Id: <1472077083-15022-3-git-send-email-cota@braap.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1472077083-15022-1-git-send-email-cota@braap.org> References: <20160824211240.GA26546@flamenco> <1472077083-15022-1-git-send-email-cota@braap.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 66.111.4.26 Subject: [Qemu-devel] [PATCH 3/8] rcu: add rcu_read_lock_held() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: mttcg@greensocs.com, peter.maydell@linaro.org, claudio.fontana@huawei.com, nikunj@linux.vnet.ibm.com, crosthwaite.peter@gmail.com, jan.kiszka@siemens.com, mark.burton@greensocs.com, a.rigo@virtualopensystems.com, qemu-devel@nongnu.org, serge.fdrv@gmail.com, pbonzini@redhat.com, bobby.prani@gmail.com, alex.bennee@linaro.org, dgilbert@redhat.com, fred.konrad@greensocs.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> X-Virus-Scanned: ClamAV using ClamSMTP |
diff --git a/include/qemu/rcu.h b/include/qemu/rcu.h index 83ae280..0f6e467 100644 --- a/include/qemu/rcu.h +++ b/include/qemu/rcu.h @@ -98,6 +98,13 @@ static inline void rcu_read_unlock(void) } } +static inline bool rcu_read_lock_held(void) +{ + struct rcu_reader_data *p_rcu_reader = &rcu_reader; + + return p_rcu_reader->depth > 0; +} + extern void synchronize_rcu(void); /*
Signed-off-by: Emilio G. Cota <cota@braap.org> --- include/qemu/rcu.h | 7 +++++++ 1 file changed, 7 insertions(+)