From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ilya Dryomov Subject: [PATCH 0/3] rbd: fix some issues around flushing notifies Date: Tue, 17 Mar 2020 13:04:19 +0100 Message-ID: <20200317120422.3406-1-idryomov@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Received: from mail-wr1-f66.google.com ([209.85.221.66]:35728 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725868AbgCQMEu (ORCPT ); Tue, 17 Mar 2020 08:04:50 -0400 Received: by mail-wr1-f66.google.com with SMTP id h4so4680635wru.2 for ; Tue, 17 Mar 2020 05:04:49 -0700 (PDT) Received: from kwango.local (ip-94-112-129-237.net.upcbroadband.cz. [94.112.129.237]) by smtp.gmail.com with ESMTPSA id p8sm4416706wrw.19.2020.03.17.05.04.45 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Mar 2020 05:04:45 -0700 (PDT) Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Hello, A recent snapshot-based mirroring experiment exposed a deadlock on header_rwsem in the error path of rbd_dev_image_probe() (i.e. "rbd map"). Thanks, Ilya Ilya Dryomov (3): rbd: avoid a deadlock on header_rwsem when flushing notifies rbd: call rbd_dev_unprobe() after unwatching and flushing notifies rbd: don't test rbd_dev->opts in rbd_dev_image_release() drivers/block/rbd.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) -- 2.19.2