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316319e82f
We have two checks of task->flags & PF_EXITING left: 1) In io_req_task_submit(), which is called in task_work and hence always in the context of the original task. That means that req->task == current, and hence checking ->flags is totally fine. 2) In io_poll_rewait(), where we need to stop re-arming poll to prevent it interfering with cancelation. This is only run from task_work as well, and hence for this case too req->task == current. Add a comment to both spots detailing that. 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.