K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-01-08T19:08:44.221290Z
K 7
svn:log
V 320
posixshm: implement posix_fallocate(2)

Linux expects to be able to use posix_fallocate(2) on a memfd. Other places
would use this with shm_open(2) to act as a smarter ftruncate(2).

Test has been added to go along with this.

Reviewed by:	kib (earlier version)
Differential Revision:	https://reviews.freebsd.org/D23042

END