d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

In ithread_schedule(), when we plan to go harvest some entropy as

Browse Source 
a result of scheduling an ithread, cut a KTR_INTR trace record so
that it's clear in tracing interrupt activity where and when the
entropy harvesting code is invoked.
This commit is contained in:
rwatson 2004-08-06 03:39:28 +00:00
parent a405528350
commit a75f66ca0a
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/kern/kern_intr.c
View File

@ -379,19 +379,21 @@ ithread_schedule(struct ithd *ithread)
return (EINVAL);
ctd = curthread;
td = ithread->it_td;
p = td->td_proc;
/*
* If any of the handlers for this ithread claim to be good
* sources of entropy, then gather some.
*/
if (harvest.interrupt && ithread->it_flags & IT_ENTROPY) {
CTR3(KTR_INTR, "%s: pid %d (%s) gathering entropy", __func__,
p->p_pid, p->p_comm);
entropy.vector = ithread->it_vector;
entropy.proc = ctd->td_proc;
random_harvest(&entropy, sizeof(entropy), 2, 0,
RANDOM_INTERRUPT);
}
td = ithread->it_td;
p = td->td_proc;
KASSERT(p != NULL, ("ithread %s has no process", ithread->it_name));
CTR4(KTR_INTR, "%s: pid %d: (%s) need = %d",
__func__, p->p_pid, p->p_comm, ithread->it_need);