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The sched_lock is not needed while clearing two of the P_STOPPED bits in

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p_flag.  Also, the proc lock can't be recursed, so simplify an older proc
lock assertion.
This commit is contained in:
John Baldwin 2003-04-17 22:31:54 +00:00
parent b5a2bad175
commit b68e08498f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=113635
1 changed files with 2 additions and 3 deletions
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5
sys/kern/sys_process.c
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@ -598,8 +598,8 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
/* deliver or queue signal */
if (P_SHOULDSTOP(p)) {
p->p_xstat = data;
mtx_lock_spin(&sched_lock);
p->p_flag &= ~(P_STOPPED_TRACE|P_STOPPED_SIG);
mtx_lock_spin(&sched_lock);
thread_unsuspend(p);
setrunnable(td2); /* XXXKSE */
/* Need foreach kse in proc, ... make_kse_queued(). */
@ -743,9 +743,8 @@ void
stopevent(struct proc *p, unsigned int event, unsigned int val)
{
PROC_LOCK_ASSERT(p, MA_OWNED | MA_NOTRECURSED);
PROC_LOCK_ASSERT(p, MA_OWNED);
p->p_step = 1;
do {
p->p_xstat = val;
p->p_stype = event; /* Which event caused the stop? */