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__dasd_device_check_path_events() calls the discipline path event handler. This handler can leave the 'to be verified pathmask' populated for an additional verification. There is a race window where the worker has finished before dasd_path_clear_all_verify() is called which resets the tbvpm. Due to this there could be outstanding path verifications missed. Fix by clearing the pathmasks before calling the handler and add them again in case of an error. Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Link: https://lore.kernel.org/r/20211020115124.1735254-8-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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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.
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.