Completed book!

13.md

@@ -144,6 +144,19 @@ badness_for_task = total_vm_for_task/(cpu_time_in_seconds^0.5 * cpu_time_in_minu
   device), the points are further divided by 4 because it's not a good idea to
   kill a process that has direct access to hardware.
 
+## 13.4 Killing the Selected Process
+
+* After a task is selected, the list is walked again and each process that
+  shares the same [struct mm_struct][mm_struct] as the selected process
+  (i.e. threads) is sent a signal.
+
+* If the process has `CAP_SYS_RAWIO` capabilities, a `SIGTERM` signal is sent to
+give the process a chance of exiting cleanly. Otherwise a `SIGKILL` is sent.
+
+## 13.5 Is That It?
+
+* Yep :)
+
 [brk]:http://man7.org/linux/man-pages/man2/brk.2.html
 [mremap]:http://man7.org/linux/man-pages/man2/mremap.2.html
 [out_of_memory]:https://github.com/lorenzo-stoakes/linux-historical/blob/v2.4.22/mm/oom_kill.c#L202
@@ -155,3 +168,5 @@ badness_for_task = total_vm_for_task/(cpu_time_in_seconds^0.5 * cpu_time_in_minu
 [select_bad_process]:https://github.com/lorenzo-stoakes/linux-historical/blob/v2.4.22/mm/oom_kill.c#L121
 [badness]:https://github.com/lorenzo-stoakes/linux-historical/blob/v2.4.22/mm/oom_kill.c#L40
 [int_sqrt]:https://github.com/lorenzo-stoakes/linux-historical/blob/v2.4.22/mm/oom_kill.c#L26
+
+[mm_struct]:https://github.com/lorenzo-stoakes/linux-historical/blob/v2.4.22/include/linux/sched.h#L206