mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-04 09:09:56 +00:00
- Catch up to proc flag changes.
- Minimal proc locking. - Use queue macros.
This commit is contained in:
parent
e2181d41d0
commit
8606d88043
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=71572
@ -144,33 +144,35 @@ vmtotal(SYSCTL_HANDLER_ARGS)
|
||||
/*
|
||||
* Mark all objects as inactive.
|
||||
*/
|
||||
for (object = TAILQ_FIRST(&vm_object_list);
|
||||
object != NULL;
|
||||
object = TAILQ_NEXT(object,object_list))
|
||||
TAILQ_FOREACH(object, &vm_object_list, object_list)
|
||||
vm_object_clear_flag(object, OBJ_ACTIVE);
|
||||
/*
|
||||
* Calculate process statistics.
|
||||
*/
|
||||
ALLPROC_LOCK(AP_SHARED);
|
||||
for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
|
||||
LIST_FOREACH(p, &allproc, p_list) {
|
||||
if (p->p_flag & P_SYSTEM)
|
||||
continue;
|
||||
mtx_enter(&sched_lock, MTX_SPIN);
|
||||
switch (p->p_stat) {
|
||||
case 0:
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
continue;
|
||||
|
||||
case SMTX:
|
||||
case SSLEEP:
|
||||
case SSTOP:
|
||||
if (p->p_flag & P_INMEM) {
|
||||
if (p->p_sflag & PS_INMEM) {
|
||||
if (p->p_priority <= PZERO)
|
||||
totalp->t_dw++;
|
||||
else if (p->p_slptime < maxslp)
|
||||
totalp->t_sl++;
|
||||
} else if (p->p_slptime < maxslp)
|
||||
totalp->t_sw++;
|
||||
if (p->p_slptime >= maxslp)
|
||||
if (p->p_slptime >= maxslp) {
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
|
||||
case SWAIT:
|
||||
@ -179,14 +181,17 @@ vmtotal(SYSCTL_HANDLER_ARGS)
|
||||
|
||||
case SRUN:
|
||||
case SIDL:
|
||||
if (p->p_flag & P_INMEM)
|
||||
if (p->p_sflag & PS_INMEM)
|
||||
totalp->t_rq++;
|
||||
else
|
||||
totalp->t_sw++;
|
||||
if (p->p_stat == SIDL)
|
||||
if (p->p_stat == SIDL) {
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
/*
|
||||
* Note active objects.
|
||||
*/
|
||||
|
@ -1124,15 +1124,18 @@ vm_pageout_scan(int pass)
|
||||
bigproc = NULL;
|
||||
bigsize = 0;
|
||||
ALLPROC_LOCK(AP_SHARED);
|
||||
for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
|
||||
LIST_FOREACH(p, &allproc, p_list) {
|
||||
/*
|
||||
* if this is a system process, skip it
|
||||
*/
|
||||
PROC_LOCK(p);
|
||||
if ((p->p_flag & P_SYSTEM) || (p->p_lock > 0) ||
|
||||
(p->p_pid == 1) ||
|
||||
((p->p_pid < 48) && (vm_swap_size != 0))) {
|
||||
PROC_UNLOCK(p);
|
||||
continue;
|
||||
}
|
||||
PROC_UNLOCK(p);
|
||||
/*
|
||||
* if the process is in a non-running type state,
|
||||
* don't touch it.
|
||||
@ -1159,9 +1162,11 @@ vm_pageout_scan(int pass)
|
||||
ALLPROC_LOCK(AP_RELEASE);
|
||||
if (bigproc != NULL) {
|
||||
killproc(bigproc, "out of swap space");
|
||||
mtx_enter(&sched_lock, MTX_SPIN);
|
||||
bigproc->p_estcpu = 0;
|
||||
bigproc->p_nice = PRIO_MIN;
|
||||
resetpriority(bigproc);
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
wakeup(&cnt.v_free_count);
|
||||
}
|
||||
}
|
||||
@ -1477,7 +1482,6 @@ vm_daemon()
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
continue;
|
||||
}
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
/*
|
||||
* get a limit
|
||||
*/
|
||||
@ -1490,8 +1494,9 @@ vm_daemon()
|
||||
* swapped out set the limit to nothing (will force a
|
||||
* swap-out.)
|
||||
*/
|
||||
if ((p->p_flag & P_INMEM) == 0)
|
||||
if ((p->p_sflag & PS_INMEM) == 0)
|
||||
limit = 0; /* XXX */
|
||||
mtx_exit(&sched_lock, MTX_SPIN);
|
||||
|
||||
size = vmspace_resident_count(p->p_vmspace);
|
||||
if (limit >= 0 && size >= limit) {
|
||||
|
Loading…
Reference in New Issue
Block a user