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Don't try to protect td_sticks with sched_lock. It doesn't need it as it

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is only accessed by curthread.
This commit is contained in:
John Baldwin 2004-09-23 21:03:58 +00:00
parent 654e92bf10
commit ea73c1ea21
1 changed files with 1 additions and 3 deletions
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4
sys/kern/subr_trap.c
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@ -123,9 +123,7 @@ userret(td, frame, oticks)
if (p->p_flag & P_PROFIL) {
quad_t ticks;
mtx_lock_spin(&sched_lock);
ticks = td->td_sticks - oticks;
mtx_unlock_spin(&sched_lock);
addupc_task(td, TRAPF_PC(frame), (u_int)ticks * psratio);
}
}
@ -161,6 +159,7 @@ ast(struct trapframe *framep)
mtx_assert(&Giant, MA_NOTOWNED);
mtx_assert(&sched_lock, MA_NOTOWNED);
td->td_frame = framep;
sticks = td->td_sticks;
if ((p->p_flag & P_SA) && (td->td_mailbox == NULL))
thread_user_enter(td);
@ -173,7 +172,6 @@ ast(struct trapframe *framep)
* ast() will be called again.
*/
mtx_lock_spin(&sched_lock);
sticks = td->td_sticks;
flags = td->td_flags;
sflag = p->p_sflag;
p->p_sflag &= ~(PS_ALRMPEND | PS_PROFPEND | PS_XCPU);