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Chao Leng authored
When reconnecting, the request may be completed with
NVME_SC_HOST_PATH_ERROR in nvmf_fail_nonready_command, which currently
set the state of the request to MQ_RQ_IN_FLIGHT before calling
nvme_complete_rq.  When this happens for a request that is freed by
the caller, such as nvme_submit_user_cmd, in the worst case the request
could be completed again in tear down process.

Instead of calling blk_mq_start_request from nvmf_fail_nonready_command,
just use the new nvme_host_path_error helper to complete the command
without starting it.

Signed-off-by: default avatarChao Leng <lengchao@huawei.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
ea5e5f42
Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.