K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-01-17T14:42:25.527122Z
K 7
svn:log
V 306
vfs: provide F_ISUNIONSTACK as a kludge for libc

Prior to introduction of this op libc's readdir would call fstatfs(2), in
effect unnecessarily copying kilobytes of data just to check fs name and a
mount flag.

Reviewed by:	kib (previous version)
Differential Revision:	https://reviews.freebsd.org/D23162

END