Merge commit 'v2.6.30-rc3' into tracing/hw-branch-tracing

Conflicts:
	arch/x86/kernel/ptrace.c

Merge reason: fix the conflict above, and also pick up the CONFIG_BROKEN
              dependency change from upstream so that we can remove it
	      here.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 12 insertions, 9 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 69bde7a22e9b..7d10c46cbb4e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -645,6 +645,9 @@ static int copy_mm(unsigned long clone_flags, struct task_struct * tsk)
 
         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;
@@ -797,6 +800,12 @@ static void posix_cpu_timers_init_group(struct signal_struct *sig)
         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]);
@@ -812,11 +821,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
                 atomic_inc(&current->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;
@@ -856,6 +862,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
         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);
@@ -1032,11 +1040,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 
         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);