K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2017-06-08T15:48:54.783297Z
K 7
svn:log
V 437
When allocating swap blocks, if the available number of free blocks in a
subtree is already zero, then setting the "largest contiguous free block"
hint for that subtree to anything other than zero makes no sense.  To be
clear, assigning a value to the hint that is too large is not a correctness
problem, only a pessimization.

Dragonfly BSD has applied the same change to blst_meta_alloc() but not
blst_meta_fill().

MFC after:	6 weeks

END