From owner-freebsd-current  Mon Feb 11 19:21: 4 2002
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Date: Fri, 8 Feb 2002 12:59:32 -0800 (PST)
From: Julian Elischer <julian@elischer.org>
To: John Baldwin <jhb@FreeBSD.org>
Cc: current@freebsd.org
Subject: cred stuff..
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I'd like to commit the code to keep the ucred across userland,
with the code to clear it to NULL kept under DEBUG ifdefs.


i.e.

>  in trap(), ast() and syscall()
>
>         if (td->td_ucred != p->p_ucred) {
>                 PROC_LOCK(p);
>                 if (td->td_ucred) {
>                         crfree(td->td_ucred);
>                         td->td_ucred = NULL;
>                 }
>                 if (p->p_ucred != NULL) {
>                         td->td_ucred = crhold(p->p_ucred);
>                 }
>                 PROC_UNLOCK(p);
>         }

and in userret() and ast()

>#ifdef DEBUG  /*your choice of variable here*/
>                 PROC_LOCK(p);
>                 if (td->td_ucred) {
>                         crfree(td->td_ucred);
>                         td->td_ucred = NULL; 
>                 }
>                 PROC_UNLOCK(p);
>#endif








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