diff options
| -rw-r--r-- | sys/alpha/alpha/trap.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sys/alpha/alpha/trap.c b/sys/alpha/alpha/trap.c index c4c402a..2cdf540d 100644 --- a/sys/alpha/alpha/trap.c +++ b/sys/alpha/alpha/trap.c @@ -298,9 +298,8 @@ trap(a0, a1, a2, entry, framep) sticks = td->td_kse->ke_sticks; td->td_frame = framep; KASSERT(td->td_ucred == NULL, ("already have a ucred")); - PROC_LOCK(p); - td->td_ucred = crhold(p->p_ucred); - PROC_UNLOCK(p); + if (td->td_ucred != p->p_ucred) + cred_update_thread(td); } else { sticks = 0; /* XXX bogus -Wuninitialized warning */ KASSERT(cold || td->td_ucred != NULL, @@ -626,10 +625,12 @@ out: framep->tf_regs[FRAME_SP] = alpha_pal_rdusp(); userret(td, framep, sticks); mtx_assert(&Giant, MA_NOTOWNED); +#ifdef INVARIANTS mtx_lock(&Giant); crfree(td->td_ucred); mtx_unlock(&Giant); td->td_ucred = NULL; +#endif } return; @@ -699,9 +700,8 @@ syscall(code, framep) opc = framep->tf_regs[FRAME_PC] - 4; sticks = td->td_kse->ke_sticks; KASSERT(td->td_ucred == NULL, ("already have a ucred")); - PROC_LOCK(p); - td->td_ucred = crhold(p->p_ucred); - PROC_UNLOCK(p); + if (td->td_ucred != p->p_ucred) + cred_update_thread(td); #ifdef DIAGNOSTIC alpha_fpstate_check(td); @@ -822,10 +822,12 @@ syscall(code, framep) */ STOPEVENT(p, S_SCX, code); +#ifdef INVARIANTS mtx_lock(&Giant); crfree(td->td_ucred); mtx_unlock(&Giant); td->td_ucred = NULL; +#endif #ifdef WITNESS if (witness_list(td)) { panic("system call %s returning with mutex(s) held\n", |
