Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[safe/jmp/linux-2.6] / kernel / posix-cpu-timers.c

diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 3f4377e..fa07da9 100644 (file)
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -10,76 +10,6 @@
 #include <linux/kernel_stat.h>
 
 /*
- * Allocate the thread_group_cputime structure appropriately and fill in the
- * current values of the fields.  Called from copy_signal() via
- * thread_group_cputime_clone_thread() when adding a second or subsequent
- * thread to a thread group.  Assumes interrupts are enabled when called.
- */
-int thread_group_cputime_alloc(struct task_struct *tsk)
-{
-       struct signal_struct *sig = tsk->signal;
-       struct task_cputime *cputime;
-
-       /*
-        * If we have multiple threads and we don't already have a
-        * per-CPU task_cputime struct (checked in the caller), allocate
-        * one and fill it in with the times accumulated so far.  We may
-        * race with another thread so recheck after we pick up the sighand
-        * lock.
-        */
-       cputime = alloc_percpu(struct task_cputime);
-       if (cputime == NULL)
-               return -ENOMEM;
-       spin_lock_irq(&tsk->sighand->siglock);
-       if (sig->cputime.totals) {
-               spin_unlock_irq(&tsk->sighand->siglock);
-               free_percpu(cputime);
-               return 0;
-       }
-       sig->cputime.totals = cputime;
-       cputime = per_cpu_ptr(sig->cputime.totals, smp_processor_id());
-       cputime->utime = tsk->utime;
-       cputime->stime = tsk->stime;
-       cputime->sum_exec_runtime = tsk->se.sum_exec_runtime;
-       spin_unlock_irq(&tsk->sighand->siglock);
-       return 0;
-}
-
-/**
- * thread_group_cputime - Sum the thread group time fields across all CPUs.
- *
- * @tsk:       The task we use to identify the thread group.
- * @times:     task_cputime structure in which we return the summed fields.
- *
- * Walk the list of CPUs to sum the per-CPU time fields in the thread group
- * time structure.
- */
-void thread_group_cputime(
-       struct task_struct *tsk,
-       struct task_cputime *times)
-{
-       struct task_cputime *totals, *tot;
-       int i;
-
-       totals = tsk->signal->cputime.totals;
-       if (!totals) {
-               times->utime = tsk->utime;
-               times->stime = tsk->stime;
-               times->sum_exec_runtime = tsk->se.sum_exec_runtime;
-               return;
-       }
-
-       times->stime = times->utime = cputime_zero;
-       times->sum_exec_runtime = 0;
-       for_each_possible_cpu(i) {
-               tot = per_cpu_ptr(totals, i);
-               times->utime = cputime_add(times->utime, tot->utime);
-               times->stime = cputime_add(times->stime, tot->stime);
-               times->sum_exec_runtime += tot->sum_exec_runtime;
-       }
-}
-
-/*
  * Called after updating RLIMIT_CPU to set timer expiration if necessary.
  */
 void update_rlimit_cpu(unsigned long rlim_new)
@@ -311,7 +241,7 @@ static int cpu_clock_sample_group(const clockid_t which_clock,
        struct task_cputime cputime;
 
        thread_group_cputime(p, &cputime);
-       switch (which_clock) {
+       switch (CPUCLOCK_WHICH(which_clock)) {
        default:
                return -EINVAL;
        case CPUCLOCK_PROF: