Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp957242imm; Wed, 8 Aug 2018 08:26:25 -0700 (PDT) X-Google-Smtp-Source: AA+uWPy5lUwNa2wTfF2db5erGzhWYzzGdU40yWnIUtx9Szffyt+wjbgotISsvLCIt6WPXO9R4nIR X-Received: by 2002:a63:5c7:: with SMTP id 190-v6mr2955917pgf.385.1533741985807; Wed, 08 Aug 2018 08:26:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1533741985; cv=none; d=google.com; s=arc-20160816; b=cRSg+aPHRCqH271z0XwaVqhME5dKbM7+PR1wLmD0BtObpWc1lLzS4219SB5/ktvZk3 w2Ce9f7pmXjir50j+b0p/QB39AT2wbTxyme5uo49aWYCGtHLujVp60mLqjAzvx/OlBIE D5eGL4km7qGPaVEju/mOuYgHv7uEuZ0o4mBrPRMgp13rWfZOlX6IRYXXSM7LimFPejGs tlqdhFX34T+cEamsSwRkbYixc9WEdhdJqf4r1g4Lw7fM7vCNN4CL+gKusJqRW7EYfEjc SjlFCFlqAmBRipljA08QF/7wiylozsR1yU9frsUo0Q+iV7ITM8qDwGxEWIhXGSWaxikQ VSrA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date :arc-authentication-results; bh=Z4Q3KWjX95ElaAKHRwiwZaiTy4OwP4cwt3aiMYM5mxQ=; b=AhjP/L2KnA6FfW09XtP3S9p1EglZC4JZMfCkk79ePywrCjefDNpXWeshMJBSEzvK2t colK/0+LUduijCOj/etedO7/sXbceX1vYaqWcsR6cDU+KeQKe2nubV07zW7SDXsps71T /p+WuKlq4JBt7GqRJuliAGEqCEbD8gQqH9ASbu+fHrdlUp9iU2b+eQfUtqniF6Dpk5E4 ffAD9KjQGIWGd0biOyhG7uZCVlyJfDfX9Nk1+2yjrvxz9no3PUWAb8XLwsI0tw12yeuB 7zt91t35I0jcTn5UPCplZETrk/mEtOQMXPd5sYU5twvhLXZUPVOkkWEoPPBqWBkv1xwo IpmQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id m3-v6si4575825pgr.108.2018.08.08.08.26.10; Wed, 08 Aug 2018 08:26:25 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727501AbeHHRpM (ORCPT + 99 others); Wed, 8 Aug 2018 13:45:12 -0400 Received: from smtp.eu.citrix.com ([185.25.65.24]:4471 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727069AbeHHRpM (ORCPT ); Wed, 8 Aug 2018 13:45:12 -0400 X-IronPort-AV: E=Sophos;i="5.53,458,1531785600"; d="scan'208";a="77357557" Date: Wed, 8 Aug 2018 17:23:13 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Juergen Gross CC: , , , , , Subject: Re: [PATCH v2 2/5] xen/blkfront: cleanup stale persistent grants Message-ID: <20180808152313.j4k6jbnw73xm2iht@mac> References: <20180808142528.31029-1-jgross@suse.com> <20180808142528.31029-3-jgross@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20180808142528.31029-3-jgross@suse.com> User-Agent: NeoMutt/20180716 X-ClientProxiedBy: AMSPEX02CAS02.citrite.net (10.69.22.113) To AMSPEX02CL02.citrite.net (10.69.22.126) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 08, 2018 at 04:25:25PM +0200, Juergen Gross wrote: > Add a periodic cleanup function to remove old persistent grants which > are no longer in use on the backend side. This avoids starvation in > case there are lots of persistent grants for a device which no longer > is involved in I/O business. > > Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monn? Thanks, Roger.