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tty: replace several curthread->td_proc with stored curproc

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No functional changes.
This commit is contained in:
Mateusz Guzik 2015-07-06 18:53:56 +00:00
parent 1ae9c994c8
commit aa0e2887f4
1 changed files with 7 additions and 5 deletions
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12
sys/kern/tty_tty.c
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@ -58,25 +58,27 @@ static void
ctty_clone(void *arg, struct ucred *cred, char *name, int namelen,
struct cdev **dev)
{
struct proc *p;
if (*dev != NULL)
return;
if (strcmp(name, "tty"))
return;
p = curproc;
sx_sunlock(&clone_drain_lock);
sx_slock(&proctree_lock);
sx_slock(&clone_drain_lock);
dev_lock();
if (!(curthread->td_proc->p_flag & P_CONTROLT))
if (!(p->p_flag & P_CONTROLT))
*dev = ctty;
else if (curthread->td_proc->p_session->s_ttyvp == NULL)
else if (p->p_session->s_ttyvp == NULL)
*dev = ctty;
else if (curthread->td_proc->p_session->s_ttyvp->v_type == VBAD ||
curthread->td_proc->p_session->s_ttyvp->v_rdev == NULL) {
else if (p->p_session->s_ttyvp->v_type == VBAD ||
p->p_session->s_ttyvp->v_rdev == NULL) {
/* e.g. s_ttyvp was revoked */
*dev = ctty;
} else
*dev = curthread->td_proc->p_session->s_ttyvp->v_rdev;
*dev = p->p_session->s_ttyvp->v_rdev;
dev_refl(*dev);
dev_unlock();
sx_sunlock(&proctree_lock);