itimers: strip unused bits from struct itimer and struct itimers
Reviewed by: imp, markj, mav Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D33670
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@ -1266,13 +1266,11 @@ kern_ktimer_create(struct thread *td, clockid_t clock_id, struct sigevent *evp,
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it = uma_zalloc(itimer_zone, M_WAITOK);
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it->it_flags = 0;
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it->it_usecount = 0;
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it->it_active = 0;
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timespecclear(&it->it_time.it_value);
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timespecclear(&it->it_time.it_interval);
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it->it_overrun = 0;
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it->it_overrun_last = 0;
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it->it_clockid = clock_id;
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it->it_timerid = -1;
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it->it_proc = p;
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ksiginfo_init(&it->it_ksi);
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it->it_ksi.ksi_flags |= KSI_INS | KSI_EXT;
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@ -1303,7 +1301,6 @@ kern_ktimer_create(struct thread *td, clockid_t clock_id, struct sigevent *evp,
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goto out;
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}
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}
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it->it_timerid = id;
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p->p_itimers->its_timers[id] = it;
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if (evp != NULL)
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it->it_sigev = *evp;
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@ -1787,9 +1784,6 @@ itimers_alloc(struct proc *p)
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struct itimers *its;
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its = malloc(sizeof (struct itimers), M_SUBPROC, M_WAITOK | M_ZERO);
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LIST_INIT(&its->its_virtual);
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LIST_INIT(&its->its_prof);
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TAILQ_INIT(&its->its_worklist);
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PROC_LOCK(p);
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if (p->p_itimers == NULL) {
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p->p_itimers = its;
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@ -56,47 +56,20 @@ struct itimer {
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int it_overrun; /* Overruns currently accumulating */
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int it_overrun_last; /* Overruns associated w/ a delivery */
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int it_clockid;
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int it_timerid;
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ksiginfo_t it_ksi;
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union {
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/* realtime */
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struct {
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struct callout it_callout;
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} _rt;
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/* cpu timer */
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struct {
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LIST_ENTRY(itimer) it_link;
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TAILQ_ENTRY(itimer) it_worklink;
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int it_active;
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int it_cflags;
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} _cpu;
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} _data;
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struct callout it_callout;
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};
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#define it_callout _data._rt.it_callout
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#define it_link _data._cpu.it_link
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#define it_active _data._cpu.it_active
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#define it_worklink _data._cpu.it_worklink
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#define it_cflags _data._cpu.it_cflags
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#define ITF_DELETING 0x01
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#define ITF_WANTED 0x02
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#define ITF_PSTOPPED 0x04
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#define ITCF_ONWORKLIST 0x01
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#define TIMER_MAX 32
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#define ITIMER_LOCK(it) mtx_lock(&(it)->it_mtx)
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#define ITIMER_UNLOCK(it) mtx_unlock(&(it)->it_mtx)
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LIST_HEAD(itimerlist, itimer);
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struct itimers {
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struct itimerlist its_virtual;
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struct itimerlist its_prof;
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TAILQ_HEAD(, itimer) its_worklist;
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struct itimer *its_timers[TIMER_MAX];
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};
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