[Crash-utility] [PATCH] Skip alternate hz calculation in Linux 4.8+

[Moore, Martin (Linux ERT)]

Hi Kazu,

> Thank you for the report and patch, there is another discussion about the HZ calculation [1], but anyway I think we should have this patch.

> Acked-by: Kazuhito Hagio <k-hagio-ab at nec.com>

> Could I have your Signed-off-by: tag?

Yes, included below.  Thanks.

--- task.c.orig 2021-04-14 16:07:52.021137849 -0400
+++ task.c      2021-04-14 16:11:03.406626370 -0400
@@ -417,7 +417,8 @@

        STRUCT_SIZE_INIT(cputime_t, "cputime_t");

-       if (symbol_exists("cfq_slice_async")) {
+       if ((THIS_KERNEL_VERSION < LINUX(4,8,0)) &&
+            symbol_exists("cfq_slice_async")) {
                uint cfq_slice_async;

                get_symbol_data("cfq_slice_async", sizeof(int),

Signed-off-by: Martin Moore <martin.moore at hpe.com>