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Check if it is root user in do_unlock_pp.

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This commit is contained in:
David Xu 2006-09-03 00:07:37 +00:00
parent 647ef1a927
commit 295ce693b9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=161926
1 changed files with 4 additions and 2 deletions
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4
sys/kern/kern_umtx.c
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@ -1827,10 +1827,11 @@ do_unlock_pp(struct thread *td, struct umutex *m, uint32_t flags)
struct umtx_pi *pi; struct umtx_pi *pi;
uint32_t owner, id; uint32_t owner, id;
uint32_t rceiling; uint32_t rceiling;
int error, pri, new_inherited_pri; int error, pri, new_inherited_pri, su;
id = td->td_tid; id = td->td_tid;
uq = td->td_umtxq; uq = td->td_umtxq;
su = (suser(td) == 0);
/* /*
* Make sure we own this mtx. * Make sure we own this mtx.
@ -1879,6 +1880,7 @@ do_unlock_pp(struct thread *td, struct umutex *m, uint32_t flags)
error = EFAULT; error = EFAULT;
else { else {
mtx_lock_spin(&sched_lock); mtx_lock_spin(&sched_lock);
if (su != 0)
uq->uq_inherited_pri = new_inherited_pri; uq->uq_inherited_pri = new_inherited_pri;
pri = PRI_MAX; pri = PRI_MAX;
TAILQ_FOREACH(pi, &uq->uq_pi_contested, pi_link) { TAILQ_FOREACH(pi, &uq->uq_pi_contested, pi_link) {