Alexander Motin cec48e002a Make UMA to not blindly force offpage slab header allocation for large
(> PAGE_SIZE) zones.  If zone is not multiple to PAGE_SIZE, there may
be enough space for the header at the last page, so we may avoid extra
header memory allocation and hash table update/lookup.

ZFS creates bunch of odd-sized UMA zones (5120, 6144, 7168, 10240, 14336).
This change gives good use to at least some of otherwise lost memory there.

Reviewed by:	avg
2013-11-27 20:56:10 +00:00
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2013-11-25 11:02:58 +00:00
2013-11-23 00:28:18 +00:00
2013-09-29 15:19:34 +00:00
2013-11-11 13:19:55 +00:00
2013-11-20 21:21:29 +00:00