diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index f34f894c4b9..443f5125f11 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -76,6 +76,9 @@ #include <trace/events/sched.h> +#define CREATE_TRACE_POINTS +#include <trace/events/task.h> + /* * Protected counters by write_lock_irq(&tasklist_lock) */ @@ -972,7 +975,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk) sched_autogroup_fork(sig); #ifdef CONFIG_CGROUPS - init_rwsem(&sig->threadgroup_fork_lock); + init_rwsem(&sig->group_rwsem); #endif sig->oom_adj = current->signal->oom_adj; @@ -1153,7 +1156,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->io_context = NULL; p->audit_context = NULL; if (clone_flags & CLONE_THREAD) - threadgroup_fork_read_lock(current); + threadgroup_change_begin(current); cgroup_fork(p); #ifdef CONFIG_NUMA p->mempolicy = mpol_dup(p->mempolicy); @@ -1291,6 +1294,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->nr_dirtied = 0; p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10); + p->dirty_paused_when = 0; /* * Ok, make it visible to the rest of the system. @@ -1368,8 +1372,11 @@ static struct task_struct *copy_process(unsigned long clone_flags, proc_fork_connector(p); cgroup_post_fork(p); if (clone_flags & CLONE_THREAD) - threadgroup_fork_read_unlock(current); + threadgroup_change_end(current); perf_event_fork(p); + + trace_task_newtask(p, clone_flags); + return p; bad_fork_free_pid: @@ -1403,7 +1410,7 @@ bad_fork_cleanup_policy: bad_fork_cleanup_cgroup: #endif if (clone_flags & CLONE_THREAD) - threadgroup_fork_read_unlock(current); + threadgroup_change_end(current); cgroup_exit(p, cgroup_callbacks_done); delayacct_tsk_free(p); module_put(task_thread_info(p)->exec_domain->module); |