diff --git a/LINKS.md b/LINKS.md
index 2201a15..be70c02 100644
--- a/LINKS.md
+++ b/LINKS.md
@@ -32,3 +32,8 @@ GCC and GAS
 
 * [GCC type attributes](https://gcc.gnu.org/onlinedocs/gcc/Type-Attributes.html)
 * [Assembler Directives](http://www.chemie.fu-berlin.de/chemnet/use/info/gas/gas_toc.html#TOC65)
+
+Important data structures
+--------------------------
+
+* [task_struct definition](http://lxr.free-electrons.com/source/include/linux/sched.h#L1274)