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d11de63f2b
After commit 4d43d395fe (workqueue: Try to catch flush_work() without
INIT_WORK()), it can cause warning when delete nvme-loop device, trace
like:
[ 76.601272] Call Trace:
[ 76.601646] ? del_timer+0x72/0xa0
[ 76.602156] __cancel_work_timer+0x1ae/0x270
[ 76.602791] cancel_work_sync+0x14/0x20
[ 76.603407] nvmet_ctrl_free+0x1b7/0x2f0 [nvmet]
[ 76.604091] ? free_percpu+0x168/0x300
[ 76.604652] nvmet_sq_destroy+0x106/0x240 [nvmet]
[ 76.605346] nvme_loop_destroy_admin_queue+0x30/0x60 [nvme_loop]
[ 76.606220] nvme_loop_shutdown_ctrl+0xc3/0xf0 [nvme_loop]
[ 76.607026] nvme_loop_delete_ctrl_host+0x19/0x30 [nvme_loop]
[ 76.607871] nvme_do_delete_ctrl+0x75/0xb0
[ 76.608477] nvme_sysfs_delete+0x7d/0xc0
[ 76.609057] dev_attr_store+0x24/0x40
[ 76.609603] sysfs_kf_write+0x4c/0x60
[ 76.610144] kernfs_fop_write+0x19a/0x260
[ 76.610742] __vfs_write+0x1c/0x60
[ 76.611246] vfs_write+0xfa/0x280
[ 76.611739] ksys_write+0x6e/0x120
[ 76.612238] __x64_sys_write+0x1e/0x30
[ 76.612787] do_syscall_64+0xbf/0x3a0
[ 76.613329] entry_SYSCALL_64_after_hwframe+0x44/0xa9
We fix it by moving fatal_err_work init to nvmet_alloc_ctrl(), which may
more reasonable.
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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.