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Wake up swapper process if needed.

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PR: kern/78474
Submitted by: Sam Lawrance <boris at brooknet dot com dot au>
This commit is contained in:
David Xu 2005-04-23 05:06:44 +00:00
parent ff87e1a6ba
commit bc247e78c0
1 changed files with 9 additions and 0 deletions
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9
sys/kern/kern_exit.c
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@ -503,6 +503,15 @@ exit1(struct thread *td, int rv)
critical_enter();
mtx_unlock_spin(&sched_lock);
wakeup(p->p_pptr);
/*
* XXX hack, swap in parent process, please see TDP_WAKEPROC0
* code, because TDP_WAKEPROC0 is only useful if thread is
* leaving critical region, but here we never leave and
* thread_exit() will call cpu_throw(), TDP_WAKEPROC0 is never
* cleared.
*/
if (p->p_pptr->p_sflag & PS_SWAPINREQ)
wakeup(&proc0);
PROC_UNLOCK(p->p_pptr);
mtx_lock_spin(&sched_lock);
critical_exit();