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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-10-04 14:46:17 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-10-16 08:19:01 +0200 |
| commit | b7662eef14caf4f582d453d45395825b5a8f594c (patch) | |
| tree | 6266a88bfe567fd2b64ff6991882887feac93c73 /arch/s390/configs | |
| parent | ff5abbe799e29099695cb8b5b2f198dd8b8bdf26 (diff) | |
s390/cputime: fix guest/irq/softirq times after CPU hotplug
On CPU hotplug some cpu stats contain bogus values:
$ cat /proc/stat
cpu 0 0 49 1280 0 0 0 3 0 0
cpu0 0 0 49 618 0 0 0 3 0 0
cpu1 0 0 0 662 0 0 0 0 0 0
[...]
$ echo 0 > /sys/devices/system/cpu/cpu1/online
$ echo 1 > /sys/devices/system/cpu/cpu1/online
$ cat /proc/stat
cpu 0 0 49 3200 0 450359962737 450359962737 3 0 0
cpu0 0 0 49 1956 0 0 0 3 0 0
cpu1 0 0 0 1244 0 450359962737 450359962737 0 0 0
[...]
pcpu_attach_task() needs the same assignments as vtime_task_switch.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes: b7394a5f4ce9 ("sched/cputime, s390: Implement delayed accounting of system time")
Cc: stable@vger.kernel.org # 4.11+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/configs')
0 files changed, 0 insertions, 0 deletions