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Fix several places to ignore processes that are not yet fully constructed.

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MFC after:	1 week
This commit is contained in:
John Baldwin 2011-04-06 17:47:22 +00:00
parent ae1f5a71f2
commit e806d352d2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=220390
6 changed files with 22 additions and 7 deletions
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4
sys/kern/kern_clock.c
View File

@ -201,6 +201,10 @@ deadlkres(void)
tryl = 0;
FOREACH_PROC_IN_SYSTEM(p) {
PROC_LOCK(p);
if (p->p_state == PRS_NEW) {
PROC_UNLOCK(p);
continue;
}
FOREACH_THREAD_IN_PROC(p, td) {
/*

3
sys/kern/kern_ktrace.c
View File

@ -882,7 +882,8 @@ ktrace(td, uap)
nfound = 0;
LIST_FOREACH(p, &pg->pg_members, p_pglist) {
PROC_LOCK(p);
if (p_cansee(td, p) != 0) {
if (p->p_state == PRS_NEW ||
p_cansee(td, p) != 0) {
PROC_UNLOCK(p);
continue;
}

9
sys/kern/kern_resource.c
View File

@ -129,7 +129,8 @@ getpriority(td, uap)
sx_sunlock(&proctree_lock);
LIST_FOREACH(p, &pg->pg_members, p_pglist) {
PROC_LOCK(p);
if (p_cansee(td, p) == 0) {
if (p->p_state == PRS_NORMAL &&
p_cansee(td, p) == 0) {
if (p->p_nice < low)
low = p->p_nice;
}
@ -215,7 +216,8 @@ setpriority(td, uap)
sx_sunlock(&proctree_lock);
LIST_FOREACH(p, &pg->pg_members, p_pglist) {
PROC_LOCK(p);
if (p_cansee(td, p) == 0) {
if (p->p_state == PRS_NORMAL &&
p_cansee(td, p) == 0) {
error = donice(td, p, uap->prio);
found++;
}
@ -230,7 +232,8 @@ setpriority(td, uap)
sx_slock(&allproc_lock);
FOREACH_PROC_IN_SYSTEM(p) {
PROC_LOCK(p);
if (p->p_ucred->cr_uid == uap->who &&
if (p->p_state == PRS_NORMAL &&
p->p_ucred->cr_uid == uap->who &&
p_cansee(td, p) == 0) {
error = donice(td, p, uap->prio);
found++;

6
sys/kern/kern_sig.c
View File

@ -1799,7 +1799,8 @@ pgsignal(struct pgrp *pgrp, int sig, int checkctty, ksiginfo_t *ksi)
PGRP_LOCK_ASSERT(pgrp, MA_OWNED);
LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
PROC_LOCK(p);
if (checkctty == 0 || p->p_flag & P_CONTROLT)
if (p->p_state == PRS_NORMAL &&
(checkctty == 0 || p->p_flag & P_CONTROLT))
pksignal(p, sig, ksi);
PROC_UNLOCK(p);
}
@ -3313,7 +3314,8 @@ pgsigio(sigiop, sig, checkctty)
PGRP_LOCK(sigio->sio_pgrp);
LIST_FOREACH(p, &sigio->sio_pgrp->pg_members, p_pglist) {
PROC_LOCK(p);
if (CANSIGIO(sigio->sio_ucred, p->p_ucred) &&
if (p->p_state == PRS_NORMAL &&
CANSIGIO(sigio->sio_ucred, p->p_ucred) &&
(checkctty == 0 || (p->p_flag & P_CONTROLT)))
psignal(p, sig);
PROC_UNLOCK(p);

4
sys/kern/sched_4bsd.c
View File

@ -463,6 +463,10 @@ schedcpu(void)
sx_slock(&allproc_lock);
FOREACH_PROC_IN_SYSTEM(p) {
PROC_LOCK(p);
if (p->p_state == PRS_NEW) {
PROC_UNLOCK(p);
continue;
}
FOREACH_THREAD_IN_PROC(p, td) {
awake = 0;
thread_lock(td);

3
sys/vm/vm_glue.c
View File

@ -747,7 +747,8 @@ scheduler(dummy)
sx_slock(&allproc_lock);
FOREACH_PROC_IN_SYSTEM(p) {
PROC_LOCK(p);
if (p->p_flag & (P_SWAPPINGOUT | P_SWAPPINGIN | P_INMEM)) {
if (p->p_state == PRS_NEW ||
p->p_flag & (P_SWAPPINGOUT | P_SWAPPINGIN | P_INMEM)) {
PROC_UNLOCK(p);
continue;
}