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Drop in a WITNESS_WARN into SYSCTL_IN to make sure that we are

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not holding any non-sleep-able-locks locks when copyin is called.
This gets executed un-conditionally since we have no function
to wire the buffer in this direction.

Pointed out by:	truckman
MFC after:	1 week
This commit is contained in:
Christian S.J. Peron 2005-08-08 21:06:42 +00:00
parent 3212724cc0
commit d8339a2616
1 changed files with 2 additions and 0 deletions
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2
sys/kern/kern_sysctl.c
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@ -1099,6 +1099,8 @@ sysctl_new_user(struct sysctl_req *req, void *p, size_t l)
return (0);
if (req->newlen - req->newidx < l)
return (EINVAL);
WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL,
"sysctl_new_user()");
error = copyin((char *)req->newptr + req->newidx, p, l);
req->newidx += l;
return (error);