markj c4bc9a29b5 Avoid CPU migration in dtrace_gethrtime() on x86.
dtrace_gethrtime() may be called outside of probe context, and in
particular, from the DTRACEIOC_BUFSNAP handler.

Disable interrupts rather than using sched_pin() to help ensure that
we don't call any external functions when in probe context.

PR:		218452
MFC after:	1 week
2017-12-18 17:26:24 +00:00
..
2017-11-28 18:23:17 +00:00
2017-12-11 18:04:04 +00:00
2017-12-14 23:21:31 +00:00
2017-12-04 13:28:56 +00:00
2017-12-16 14:36:21 +00:00