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[ Upstream commit251ef6f71b] nvme_dev_remove_admin could free dev->admin_q and the admin_tagset while they are being accessed by nvme_dev_disable(), which can be called by nvme_reset_work via nvme_remove_dead_ctrl. Commitcb4bfda62a("nvme-pci: fix hot removal during error handling") intended to avoid requests being stuck on a removed controller by killing the admin queue. But the later fixc8e9e9b764("nvme-pci: unquiesce admin queue on shutdown"), together with nvme_dev_disable(dev, true) right before nvme_dev_remove_admin() could help dispatch requests and fail them early, so we don't need nvme_dev_remove_admin() any more. Fixes:cb4bfda62a("nvme-pci: fix hot removal during error handling") Signed-off-by: Casey Chen <cachen@purestorage.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.