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[23.128.96.18]) by mx.google.com with ESMTP id x68si9697416ede.282.2020.04.15.23.12.28; Wed, 15 Apr 2020 23:12:51 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ibm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407296AbgDPGIf (ORCPT + 99 others); Thu, 16 Apr 2020 02:08:35 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:29796 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407157AbgDPGIY (ORCPT ); Thu, 16 Apr 2020 02:08:24 -0400 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03G63Lhu120500; Thu, 16 Apr 2020 02:08:06 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 30egsmsnfw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Apr 2020 02:08:06 -0400 Received: from m0098393.ppops.net (m0098393.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 03G65uDe130456; Thu, 16 Apr 2020 02:08:05 -0400 Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0a-001b2d01.pphosted.com with ESMTP id 30egsmsnf4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Apr 2020 02:08:05 -0400 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 03G66q2h029896; Thu, 16 Apr 2020 06:08:03 GMT Received: from b01cxnp22036.gho.pok.ibm.com (b01cxnp22036.gho.pok.ibm.com [9.57.198.26]) by ppma01dal.us.ibm.com with ESMTP id 30b5h79ydf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Apr 2020 06:08:03 +0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 03G682BF33358242 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 16 Apr 2020 06:08:02 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DCB34B2070; Thu, 16 Apr 2020 06:08:01 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DBFBCB205F; Thu, 16 Apr 2020 06:08:00 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 16 Apr 2020 06:08:00 +0000 (GMT) Subject: [PATCH v11 13/14] powerpc/vas: Free send window in VAS instance after credits returned From: Haren Myneni To: mpe@ellerman.id.au Cc: mikey@neuling.org, srikar@linux.vnet.ibm.com, frederic.barrat@fr.ibm.com, linux-kernel@vger.kernel.org, npiggin@gmail.com, hch@infradead.org, oohall@gmail.com, clg@kaod.org, herbert@gondor.apana.org.au, sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, ajd@linux.ibm.com In-Reply-To: <1587016214.2275.1036.camel@hbabu-laptop> References: <1587016214.2275.1036.camel@hbabu-laptop> Content-Type: text/plain; charset="UTF-8" Date: Wed, 15 Apr 2020 23:07:36 -0700 Message-ID: <1587017256.2275.1076.camel@hbabu-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-16_01:2020-04-14,2020-04-16 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=3 clxscore=1015 malwarescore=0 mlxlogscore=999 bulkscore=0 mlxscore=0 phishscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004160038 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org NX may be processing requests while trying to close window. Wait until all credits are returned and then free send window from VAS instance. Signed-off-by: Haren Myneni --- arch/powerpc/platforms/powernv/vas-window.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index d0c07cf..e15b405 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -1316,14 +1316,14 @@ int vas_win_close(struct vas_window *window) unmap_paste_region(window); - clear_vinst_win(window); - poll_window_busy_state(window); unpin_close_window(window); poll_window_credits(window); + clear_vinst_win(window); + poll_window_castout(window); /* if send window, drop reference to matching receive window */ -- 1.8.3.1