K 10
svn:author
V 7
glebius
K 8
svn:date
V 27
2013-01-22T06:32:46.807896Z
K 7
svn:log
V 496
To reduce memory waste in UMA_ZONE_PCPU zones, pad struct pcpu on all
architectures so that sizeof(struct pcpu) is denominator of PAGE_SIZE.

Provide CTASSERT() that would force that.

Since struct pcpu is CACHE_SIZE aligned, the padding size was chosen
to be just +1 byte to a multiple of CACHE_SIZE. This allows future
growing of MD pcpu fields without recalculating padding size. However,
once it grows beyond CACHE_SIZE, the assert will fail and someone will
need to reconsider padding size.

END