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| Filename | Latest commit message | Latest commit date |
|---|---|---|
6cdefc6e2a
The revised if_ready checks skipped over the case of returning error when the controller is being deleted. Instead it was returning BUSY, which caused the ios to retry, which caused the ns delete to hang waiting for the ios to drain. Stack trace of hang looks like: kworker/u64:2 D 0 74 2 0x80000000 Workqueue: nvme-delete-wq nvme_delete_ctrl_work [nvme_core] Call Trace: ? __schedule+0x26d/0x820 schedule+0x32/0x80 blk_mq_freeze_queue_wait+0x36/0x80 ? remove_wait_queue+0x60/0x60 blk_cleanup_queue+0x72/0x160 nvme_ns_remove+0x106/0x140 [nvme_core] nvme_remove_namespaces+0x7e/0xa0 [nvme_core] nvme_delete_ctrl_work+0x4d/0x80 [nvme_core] process_one_work+0x160/0x350 worker_thread+0x1c3/0x3d0 kthread+0xf5/0x130 ? process_one_work+0x350/0x350 ? kthread_bind+0x10/0x10 ret_from_fork+0x1f/0x30 Extend nvmf_fail_nonready_command() to supply the controller pointer so that the controller state can be looked at. Fail any io to a controller that is deleting. Fixes: |
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| README | ||
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.