53c1788b7d
One invariant of __irq_build_affinity_masks() is that all CPUs in the specified masks (cpu_mask AND node_to_cpumask for each node) should be covered during the spread. Even though all requested vectors have been reached, it's still required to spread vectors among remained CPUs. A similar policy has been taken in case of 'numvecs <= nodes' already. So remove the following check inside the loop: if (done >= numvecs) break; Meantime assign at least 1 vector for remaining nodes if 'numvecs' vectors have been handled already. Also, if the specified cpumask for one numa node is empty, simply do not spread vectors on this node. Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190816022849.14075-2-ming.lei@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.