diff options
Diffstat (limited to 'sys/kern/sched_4bsd.c')
| -rw-r--r-- | sys/kern/sched_4bsd.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sys/kern/sched_4bsd.c b/sys/kern/sched_4bsd.c index f844e60539d2..56f69bd34af8 100644 --- a/sys/kern/sched_4bsd.c +++ b/sys/kern/sched_4bsd.c @@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$"); #include "opt_hwpmc_hooks.h" +#include "opt_kdtrace.h" #include <sys/param.h> #include <sys/systm.h> @@ -60,6 +61,12 @@ __FBSDID("$FreeBSD$"); #include <sys/pmckern.h> #endif +#ifdef KDTRACE_HOOKS +#include <sys/dtrace_bsd.h> +int dtrace_vtime_active; +dtrace_vtime_switch_func_t dtrace_vtime_switch_func; +#endif + /* * INVERSE_ESTCPU_WEIGHT is only suitable for statclock() frequencies in * the range 100-256 Hz (approximately). @@ -890,6 +897,15 @@ sched_switch(struct thread *td, struct thread *newtd, int flags) PMC_SWITCH_CONTEXT(td, PMC_FN_CSW_OUT); #endif +#ifdef KDTRACE_HOOKS + /* + * If DTrace has set the active vtime enum to anything + * other than INACTIVE (0), then it should have set the + * function to call. + */ + if (dtrace_vtime_active) + (*dtrace_vtime_switch_func)(newtd); +#endif /* I feel sleepy */ cpu_switch(td, newtd, td->td_lock); /* |