HelenOS sources

heap_lock         785 uspace/lib/c/generic/malloc.c 	heap_lock();
heap_lock         808 uspace/lib/c/generic/malloc.c 	heap_lock();
heap_lock         833 uspace/lib/c/generic/malloc.c 	heap_lock();
heap_lock         942 uspace/lib/c/generic/malloc.c 	heap_lock();
heap_lock         992 uspace/lib/c/generic/malloc.c 	heap_lock();