Fixed GSN-EDF to handle correct wakeup of tasks that just exited a

semaphore.

2 files changed, 2 insertions, 0 deletions

diff --git a/arch/i386/kernel/pi_sem_syscalls.c b/arch/i386/kernel/pi_sem_syscalls.c
index 85f211f0d8..72fd67e6e5 100644
--- a/arch/i386/kernel/pi_sem_syscalls.c
+++ b/arch/i386/kernel/pi_sem_syscalls.c
@@ -130,6 +130,7 @@ asmlinkage long sys_pi_sema_free(pi_sema_id sem_id)
         list_for_each_safe(tmp, next, &pi_sems[sem_id].wait.task_list) {                    
                 wait_queue_t *curr = list_entry(tmp, wait_queue_t, task_list);
                 list_del(tmp);
+                set_rt_flags((struct task_struct*)curr->private, RT_F_EXIT_SEM);
                 curr->func(curr, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE,
                            0, NULL);
         }
diff --git a/arch/i386/kernel/sem_syscalls.c b/arch/i386/kernel/sem_syscalls.c
index 2bdbc5fd96..8b3270d0d4 100644
--- a/arch/i386/kernel/sem_syscalls.c
+++ b/arch/i386/kernel/sem_syscalls.c
@@ -67,6 +67,7 @@ asmlinkage long sys_sema_free(sema_id sem_id)
         list_for_each_safe(tmp, next, &sems[sem_id].wait.task_list) {
                 wait_queue_t *curr = list_entry(tmp, wait_queue_t, task_list);
                 list_del(tmp);
+                set_rt_flags((struct task_struct*)curr->private, RT_F_EXIT_SEM);
                 curr->func(curr, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE,
                            0, NULL);
         }