Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[net-next-2.6.git] / kernel / exit.c

diff --git a/kernel/exit.c b/kernel/exit.c
index e2bdf37f9fdea71a15acb3523ec20b63a6aa42d3..21aa7b3001fb49edce43446dd85898f62ab33d98 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -50,6 +50,7 @@
 #include <linux/perf_event.h>
 #include <trace/events/sched.h>
 #include <linux/hw_breakpoint.h>
+#include <linux/oom.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -94,6 +95,14 @@ static void __exit_signal(struct task_struct *tsk)
                tty = sig->tty;
                sig->tty = NULL;
        } else {
+               /*
+                * This can only happen if the caller is de_thread().
+                * FIXME: this is the temporary hack, we should teach
+                * posix-cpu-timers to handle this case correctly.
+                */
+               if (unlikely(has_group_leader_pid(tsk)))
+                       posix_cpu_timers_exit_group(tsk);
+
                /*
                 * If there is any task waiting for the group exit
                 * then notify it:
@@ -687,6 +696,8 @@ static void exit_mm(struct task_struct * tsk)
        enter_lazy_tlb(mm, current);
        /* We don't want this task to be frozen prematurely */
        clear_freeze_flag(tsk);
+       if (tsk->signal->oom_score_adj == OOM_SCORE_ADJ_MIN)
+               atomic_dec(&mm->oom_disable_count);
        task_unlock(tsk);
        mm_update_next_owner(mm);
        mmput(mm);
@@ -700,6 +711,8 @@ static void exit_mm(struct task_struct * tsk)
  * space.
  */
 static struct task_struct *find_new_reaper(struct task_struct *father)
+       __releases(&tasklist_lock)
+       __acquires(&tasklist_lock)
 {
        struct pid_namespace *pid_ns = task_active_pid_ns(father);
        struct task_struct *thread;