K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-01-11T12:54:33.840011Z
K 7
svn:log
V 268
Do not clear %RFLAGS.DF on fast syscall entry.

Hardware already did it for us due to the mask loaded into the
MSR_SF_MASK msr register.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D13838

END