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TIMEOUT(9): Start callout timer later

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This avoid race conditions during initialization.
This commit is contained in:
Sebastian Huber 2013-11-13 16:16:29 +01:00
parent da450ab3dc
commit 7f1836cfe6
1 changed files with 23 additions and 13 deletions
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36
freebsd/sys/kern/kern_timeout.c
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@ -216,7 +216,9 @@ cc_cme_migrating(struct callout_cpu *cc)
* and may be called more then once. * and may be called more then once.
*/ */
#ifdef __rtems__ #ifdef __rtems__
static void rtems_bsd_timeout_init(void *); static void rtems_bsd_timeout_init_early(void *);
static void callout_cpu_init(struct callout_cpu *);
static void static void
rtems_bsd_callout_timer(rtems_id id, void *arg) rtems_bsd_callout_timer(rtems_id id, void *arg)
@ -231,13 +233,29 @@ rtems_bsd_callout_timer(rtems_id id, void *arg)
callout_tick(); callout_tick();
} }
static void callout_cpu_init(struct callout_cpu *); static void
rtems_bsd_timeout_init_late(void *unused)
{
rtems_status_code sc;
rtems_id id;
SYSINIT(rtems_bsd_timeout, SI_SUB_VM, SI_ORDER_FIRST, rtems_bsd_timeout_init, (void) unused;
NULL);
sc = rtems_timer_create(rtems_build_name('_', 'C', 'L', 'O'), &id);
BSD_ASSERT(sc == RTEMS_SUCCESSFUL);
sc = rtems_timer_server_fire_after(id, 1, rtems_bsd_callout_timer, NULL);
BSD_ASSERT(sc == RTEMS_SUCCESSFUL);
}
SYSINIT(rtems_bsd_timeout_early, SI_SUB_VM, SI_ORDER_FIRST,
rtems_bsd_timeout_init_early, NULL);
SYSINIT(rtems_bsd_timeout_late, SI_SUB_RUN_SCHEDULER, SI_ORDER_FIRST,
rtems_bsd_timeout_init_late, NULL);
static void static void
rtems_bsd_timeout_init(void *unused) rtems_bsd_timeout_init_early(void *unused)
#else /* __rtems__ */ #else /* __rtems__ */
caddr_t caddr_t
kern_timeout_callwheel_alloc(caddr_t v) kern_timeout_callwheel_alloc(caddr_t v)
@ -245,8 +263,6 @@ kern_timeout_callwheel_alloc(caddr_t v)
{ {
struct callout_cpu *cc; struct callout_cpu *cc;
#ifdef __rtems__ #ifdef __rtems__
rtems_status_code sc;
rtems_id id;
caddr_t v; caddr_t v;
(void) unused; (void) unused;
@ -275,12 +291,6 @@ kern_timeout_callwheel_alloc(caddr_t v)
return(v); return(v);
#else /* __rtems__ */ #else /* __rtems__ */
callout_cpu_init(cc); callout_cpu_init(cc);
sc = rtems_timer_create(rtems_build_name('_', 'C', 'L', 'O'), &id);
BSD_ASSERT(sc == RTEMS_SUCCESSFUL);
sc = rtems_timer_server_fire_after(id, 1, rtems_bsd_callout_timer, NULL);
BSD_ASSERT(sc == RTEMS_SUCCESSFUL);
#endif /* __rtems__ */ #endif /* __rtems__ */
} }