Jeff Roberson c75757481f Replace redundant code with a few new vm_page_grab facilities:
- VM_ALLOC_NOCREAT will grab without creating a page.
 - vm_page_grab_valid() will grab and page in if necessary.
 - vm_page_busy_acquire() automates some busy acquire loops.

Discussed with:	alc, kib, markj
Tested by:	pho (part of larger branch)
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D21546
2019-09-10 19:08:01 +00:00
..
2017-11-30 15:45:42 +00:00
2019-06-02 01:00:17 +00:00
2019-07-03 19:59:56 +00:00