Richard Clark
33e3f0a335
Currently if the user queues a new work item unintentionally into a wq after the destroy_workqueue(wq), the work still can be queued and scheduled without any noticeable kernel message before the end of a RCU grace period. As a debug-aid facility, this commit adds a new flag __WQ_DESTROYING to spot that issue by triggering a kernel WARN message. Signed-off-by: Richard Clark <richard.xnu.clark@gmail.com> Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com> Signed-off-by: Tejun Heo <tj@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.
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.