diff options
Diffstat (limited to 'cpukit/rtems/src/regiongetsegment.c')
| -rw-r--r-- | cpukit/rtems/src/regiongetsegment.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/cpukit/rtems/src/regiongetsegment.c b/cpukit/rtems/src/regiongetsegment.c index 27d6bf66dd..dc58a27ff3 100644 --- a/cpukit/rtems/src/regiongetsegment.c +++ b/cpukit/rtems/src/regiongetsegment.c @@ -98,6 +98,14 @@ rtems_status_code rtems_region_get_segment( return RTEMS_UNSATISFIED; } + /* + * Switch from using the memory allocation mutex to using a + * dispatching disabled critical section. We have to do this + * because this thread is going to block. + */ + _Thread_Disable_dispatch(); + _RTEMS_Unlock_allocator(); + executing->Wait.queue = &the_region->Wait_queue; executing->Wait.id = id; executing->Wait.count = size; @@ -107,7 +115,8 @@ rtems_status_code rtems_region_get_segment( _Thread_queue_Enqueue( &the_region->Wait_queue, timeout ); - _RTEMS_Unlock_allocator(); + _Thread_Enable_dispatch(); + return (rtems_status_code) executing->Wait.return_code; } |