[PATCH 0/2] Fix multiple iscsi session unbind event sent to userspace

From: Wenchao Hao <haowenchao@huawei.com>
To: Mike Christie <michael.christie@oracle.com>,
	Lee Duncan <lduncan@suse.com>, Chris Leech <cleech@redhat.com>,
	"James E . J . Bottomley" <jejb@linux.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	<open-iscsi@googlegroups.com>, <linux-scsi@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: <linfeilong@huawei.com>, Wenchao Hao <haowenchao@huawei.com>
Subject: [PATCH 0/2] Fix multiple iscsi session unbind event sent to userspace
Date: Wed, 13 Apr 2022 21:49:45 -0400	[thread overview]
Message-ID: <20220414014947.4168447-1-haowenchao@huawei.com> (raw)

kernel would send ISCSI_KEVENT_UNBIND_SESSION twice to userspace, for
open-iscsi, this would trigger iscsi_stop twice. We should fix this issue.

Here introduced a new session state ISCSI_SESSION_UNBOUND to address it.
Once session state is ISCSI_KEVENT_UNBIND_SESSION, it means
__iscsi_unbind_session() has been called for this session and do not need
to execute any more.

Reference:https://github.com/open-iscsi/open-iscsi/issues/338

Wenchao Hao (2):
  scsi: iscsi: introduce session UNBOUND state to avoid multiple unbind
    event
  iscsi: set session to FREE state after unbind session in remove
    session

 drivers/scsi/scsi_transport_iscsi.c | 45 +++++++++++++++++++++--------
 include/scsi/scsi_transport_iscsi.h |  1 +
 2 files changed, 34 insertions(+), 12 deletions(-)

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2.32.0