K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2017-05-27T16:40:00.412399Z
K 7
svn:log
V 724
In r118390, the swap pager's approach to striping swap allocation over
multiple devices was changed.  However, swapoff_one() was not fully and
correctly converted.  In particular, with r118390's introduction of a per-
device blist, the maximum swap block size, "dmmax", became irrelevant to
swapoff_one()'s operation.  Moreover, swapoff_one() was performing out-of-
range operations on the per-device blist that were silently ignored by
blist_fill().

This change corrects both of these problems with swapoff_one(), which will
allow us to potentially increase MAX_PAGEOUT_CLUSTER.  Previously,
swapoff_one() would panic inside of blist_fill() if you increased
MAX_PAGEOUT_CLUSTER.

Reviewed by:	kib, markj
MFC after:	3 days

END