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A given block device can load a table multiple times, with different input parameters, before eventually resuming it. Further, a device may be suspended and then resumed. The device may never resume after a table-load. Because of the above valid scenarios for a given device, it is important to measure and log the device resume event using IMA. Also, if the table is large, measuring it in clear-text each time the device changes state, will unnecessarily increase the size of IMA log. Since the table clear-text is already measured during table-load event, measuring the hash during resume should be sufficient to validate the table contents. Measure the device parameters, and hash of the active table, when the device is resumed. Signed-off-by: Tushar Sugandhi <tusharsu@linux.microsoft.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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.