#include <linux/fs_struct.h>
#include <trace/sched.h>
#include <linux/magic.h>
+#include <linux/perf_counter.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
tsk->min_flt = tsk->maj_flt = 0;
tsk->nvcsw = tsk->nivcsw = 0;
+#ifdef CONFIG_DETECT_HUNG_TASK
+ tsk->last_switch_count = tsk->nvcsw + tsk->nivcsw;
+#endif
tsk->mm = NULL;
tsk->active_mm = NULL;
sig->cputime_expires.virt_exp = cputime_zero;
sig->cputime_expires.sched_exp = 0;
+ if (sig->rlim[RLIMIT_CPU].rlim_cur != RLIM_INFINITY) {
+ sig->cputime_expires.prof_exp =
+ secs_to_cputime(sig->rlim[RLIMIT_CPU].rlim_cur);
+ sig->cputimer.running = 1;
+ }
+
/* The timer lists. */
INIT_LIST_HEAD(&sig->cpu_timers[0]);
INIT_LIST_HEAD(&sig->cpu_timers[1]);
atomic_inc(¤t->signal->live);
return 0;
}
- sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
-
- if (sig)
- posix_cpu_timers_init_group(sig);
+ sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
tsk->signal = sig;
if (!sig)
return -ENOMEM;
memcpy(sig->rlim, current->signal->rlim, sizeof sig->rlim);
task_unlock(current->group_leader);
+ posix_cpu_timers_init_group(sig);
+
acct_init_pacct(&sig->pacct);
tty_audit_fork(sig);
p->default_timer_slack_ns = current->timer_slack_ns;
-#ifdef CONFIG_DETECT_SOFTLOCKUP
- p->last_switch_count = 0;
- p->last_switch_timestamp = 0;
-#endif
-
task_io_accounting_init(&p->ioac);
acct_clear_integrals(p);
/* Perform scheduler related setup. Assign this task to a CPU. */
sched_fork(p, clone_flags);
+ retval = perf_counter_init_task(p);
+ if (retval)
+ goto bad_fork_cleanup_policy;
+
if ((retval = audit_alloc(p)))
goto bad_fork_cleanup_policy;
/* copy all the process information */
bad_fork_cleanup_audit:
audit_free(p);
bad_fork_cleanup_policy:
+ perf_counter_free_task(p);
#ifdef CONFIG_NUMA
mpol_put(p->mempolicy);
bad_fork_cleanup_cgroup:
if (clone_flags & CLONE_VFORK) {
p->vfork_done = &vfork;
init_completion(&vfork);
+ } else if (!(clone_flags & CLONE_VM)) {
+ /*
+ * vfork will do an exec which will call
+ * set_task_comm()
+ */
+ perf_counter_fork(p);
}
audit_finish_fork(p);