hi all: I try to find out where the function, vma_interval_tree_insert, implemented but in vain. http://lxr.free-electrons.com/ident?i=vma_interval_tree_insert from linux cross-reference, it only show prototype defined and referenced like below: Defined as a function prototype in: include/linux/mm.h, line 1919 Referenced (in 3 files total) in: mm/mmap.c: line 548 line 738 line 739 mm/nommu.c, line 709 include/linux/mm.h, line 1919 Would anyone help to let me know where it is implemented? appreciate your kind help, -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>