From owner-svn-src-all@FreeBSD.ORG Thu Aug 8 10:06:45 2013 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 7903A5E0; Thu, 8 Aug 2013 10:06:45 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qa0-x22a.google.com (mail-qa0-x22a.google.com [IPv6:2607:f8b0:400d:c00::22a]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 090922527; Thu, 8 Aug 2013 10:06:44 +0000 (UTC) Received: by mail-qa0-f42.google.com with SMTP id bv4so191163qab.15 for ; Thu, 08 Aug 2013 03:06:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=H/udqRgQtaSYJCrAjG44C3GQCCZ3i5kM7vgyGRkT/4Y=; b=SulMqOpEwuzYgE73Qp2wbStqy2ulE5aRzrdEjwhuLNmpWkyX7NdNuJKK/5brp0OYmD oKntsKZChY7TPzR+z6idXssrI4Bp6lln3Bc8jIFm7l/luqYaaD9F/mZGhk4vTCE1y6Bm UcGyVY7Lm3Sn7LL/FRAGe47BVTMXS0ey9+giUDgXKsbYEY1uOCB/erVFDgIJKgk9iri6 DlUXPJYwY8VRy25SrJL83GyagQP01AQpbnrZTeGt/1VGWF0Bjey/RDAyb+49y+96rfJK Pzbu3p++qWkMjxOc0SP5kqoy36fIL9DoSsVFVRdegdXBgbR42uHy42FlDceKoX6Ogo49 4+rQ== MIME-Version: 1.0 X-Received: by 10.224.127.137 with SMTP id g9mr5156369qas.4.1375956404161; Thu, 08 Aug 2013 03:06:44 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.128.70 with HTTP; Thu, 8 Aug 2013 03:06:44 -0700 (PDT) In-Reply-To: <20130808092343.GP20104@FreeBSD.org> References: <201308080509.r7859aWv084743@svn.freebsd.org> <20130808092343.GP20104@FreeBSD.org> Date: Thu, 8 Aug 2013 03:06:44 -0700 X-Google-Sender-Auth: wGTqtQRa2TM_7T-D80wPVMCn-zo Message-ID: Subject: Re: svn commit: r254082 - head/sys/net80211 From: Adrian Chadd To: Gleb Smirnoff Content-Type: text/plain; charset=ISO-8859-1 Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Aug 2013 10:06:45 -0000 Hi, I'm going to eventually nuke OACTIVE. It just doesn't hold any meaning nowdays. Having OACTIVE serialised behind the iflock doesn't actuallly help as much as it used to - because there's multiple concurrent TX path entry points, it's very possible that OACTIVE will get set in one TXing thread during the _middle_ of the execution of another TX thread. That's why you need some kind of higher level serialisation or locking around the TX path to have it make any sense. -adrian