K 10
svn:author
V 5
dougm
K 8
svn:date
V 27
2019-11-11T16:59:49.797442Z
K 7
svn:log
V 507
swap_pager_meta_free() frees allocated blocks in a way that
exploits the sparsity of allocated blocks in a range, without
issuing an "are you there?" query for every block in the range.
swap_pager_copy() is not so smart.  Modify the implementation
of swap_pager_meta_free() slightly so that swap_pager_copy()
can use that smarter implementation too.

Based on an observation of: Yoshihiro Ota (ota_j.email.ne.jp)
Reviewed by: kib,alc
Tested by: pho
Differential Revision: https://reviews.freebsd.org/D22280

END