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Update p_runtime on exit. This fixes calcru() on zombies, and prepares

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for not calling calcru() on exit.  calcru() on a zombie can happen if
ttyinfo() (^T) picks one.

PR:		52490
This commit is contained in:
Bruce Evans 2004-06-21 14:03:38 +00:00
parent d6a774ca4a
commit 871684b822
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=130842
1 changed files with 9 additions and 2 deletions
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11
sys/kern/kern_exit.c
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@ -103,6 +103,7 @@ sys_exit(struct thread *td, struct sys_exit_args *uap)
void
exit1(struct thread *td, int rv)
{
struct bintime new_switchtime;
struct proc *p, *nq, *q;
struct tty *tp;
struct vnode *ttyvp;
@ -517,10 +518,16 @@ exit1(struct thread *td, int rv)
mtx_lock_spin(&sched_lock);
critical_exit();
cnt.v_swtch++;
binuptime(PCPU_PTR(switchtime));
/* Do the same timestamp bookkeeping that mi_switch() would do. */
binuptime(&new_switchtime);
bintime_add(&p->p_runtime, &new_switchtime);
bintime_sub(&p->p_runtime, PCPU_PTR(switchtime));
PCPU_SET(switchtime, new_switchtime);
PCPU_SET(switchticks, ticks);
cnt.v_swtch++;
/*
* Allow the scheduler to adjust the priority of the
* parent when a kseg is exiting.