sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields

like for cpustat, introduce the "gtime" (guest time of the task) and
"cgtime" (guest time of the task children) fields for the
tasks. Modify signal_struct and task_struct.

Modify /proc/<pid>/stat to display these new fields.

Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Acked-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3a6e05e77715..fefce22e4c16 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -517,6 +517,8 @@ struct signal_struct {
          * in __exit_signal, except for the group leader.
          */
         cputime_t utime, stime, cutime, cstime;
+        cputime_t gtime;
+        cputime_t cgtime;
         unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
         unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
         unsigned long inblock, oublock, cinblock, coublock;
@@ -1048,6 +1050,7 @@ struct task_struct {
 
         unsigned int rt_priority;
         cputime_t utime, stime;
+        cputime_t gtime;
         unsigned long nvcsw, nivcsw; /* context switch counts */
         struct timespec start_time;             /* monotonic time */
         struct timespec real_start_time;        /* boot based time */