K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2019-09-01T21:38:08.501098Z
K 7
svn:log
V 874
Restrict the input domain set in cpuset_setdomain(2) to all_domains.

To permit larger values of MAXMEMDOM, which is currently 8 on amd64,
cpuset_setdomain(2) accepts a mask of size 256.  In the kernel, domain
set masks are 64 bits wide, but can only represent a set of MAXMEMDOM
domains due to the use of the ds_order table.

Domain sets passed to cpuset_setdomain(2) are restricted to a subset
of their parent set, which is typically the root set, but before this
happens we modify the input set to exclude empty domains.
domainset_empty_vm() and other code which manipulates domain sets
expect the mask to be a subset of all_domains, so enforce that when
performing validation of cpuset_setdomain(2) parameters.

Reported and tested by:	pho
Reviewed by:	kib
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21477

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