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51d921a613
The AP bus udev event BINDINGS=complete is sent out when the first time all devices detected by the AP bus scan have been bound to device drivers. This is the ideal time to for example change the AP bus masks apmask and aqmask to re-establish a persistent change on the decision about which cards/domains should be available for the host and which should go into the pool for kvm guests. However, if exactly this initial udev event is sent out early in the boot process a udev rule may not have been established yet and thus this event will never be recognized. To have some indication about if the AP bus binding complete has already happened, the internal ap_bindings_complete_count counter is exposed via sysfs with this patch. Suggested-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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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 reStructuredText 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.