linux-kernel - [PATCH-next v2 0/2] scsi, driver core: fix iscsi rescan fails to create block device

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Message-ID: <20230128094146.205858-1-zhongjinghua@huawei.com>
Date:   Sat, 28 Jan 2023 17:41:44 +0800
From:   Zhong Jinghua <zhongjinghua@...wei.com>
To:     <gregkh@...uxfoundation.org>, <jejb@...ux.ibm.com>,
        <martin.petersen@...cle.com>, <hare@...e.de>, <bvanassche@....org>,
        <emilne@...hat.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <zhongjinghua@...wei.com>, <yi.zhang@...wei.com>,
        <yukuai3@...wei.com>
Subject: [PATCH-next v2 0/2] scsi, driver core: fix iscsi rescan fails to create block device

v1->v2: add a new patch that introduces get_device_unless_zero() method.

Hello, This patchset introduces get_device_unless_zero() method, Avoid
dev's reference count from 0 to 1, as this will cause bugs in some parts
of the kernel. 

We used this method when we fixed an issue with iSCSI delete order.
Zhong Jinghua (2):
  driver core: introduce get_device_unless_zero()
  scsi: fix iscsi rescan fails to create block device

 drivers/base/core.c       | 8 ++++++++
 drivers/scsi/scsi_sysfs.c | 4 +---
 include/linux/device.h    | 1 +
 3 files changed, 10 insertions(+), 3 deletions(-)

-- 
2.31.1