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c0f64943e7
Add a new "interleave" allocation policy which stripes pages across domains with a stride or width keeping contiguity within a multi-page region. Move the kernel to the dedicated numbered cpuset #2 making it possible to assign kernel threads and memory policy separately from user. This also eliminates the need for the complicated interrupt binding code. Add a sysctl API for viewing and manipulating domainsets. Refactor some of the cpuset_t manipulation code using the generic bitset type so that it can be used for both. This probably belongs in a dedicated subr file. Attempt to improve the include situation. Reviewed by: kib Discussed with: jhb (cpuset parts) Tested by: pho (before review feedback) Sponsored by: Netflix, Dell/EMC Isilon Differential Revision: https://reviews.freebsd.org/D14839