Daniel Kiper
2012-Aug-10 13:27 UTC
[PATCH v2 4/6] xen: Get idle data from alternative source
idle member was removed from struct schedule_data by 21422 changeset
(Fix CPU hotplug after percpu data handling changes). Get idle data
from alternative source.
Signed-off-by: Daniel Kiper
<daniel.kiper-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
diff -Npru crash-6.0.8.orig/xen_hyper.c crash-6.0.8/xen_hyper.c
--- crash-6.0.8.orig/xen_hyper.c 2012-07-05 16:05:31.000000000 +0200
+++ crash-6.0.8/xen_hyper.c 2012-07-05 16:08:52.000000000 +0200
@@ -397,7 +397,8 @@ xen_hyper_misc_init(void)
XEN_HYPER_STRUCT_SIZE_INIT(schedule_data, "schedule_data");
XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_schedule_lock,
"schedule_data", "schedule_lock");
XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_curr, "schedule_data",
"curr");
- XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_idle, "schedule_data",
"idle");
+ if (MEMBER_EXISTS("schedule_data", "idle"))
+ XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_idle, "schedule_data",
"idle");
XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_sched_priv,
"schedule_data", "sched_priv");
XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_s_timer, "schedule_data",
"s_timer");
XEN_HYPER_MEMBER_OFFSET_INIT(schedule_data_tick, "schedule_data",
"tick");
@@ -539,7 +540,10 @@ xen_hyper_schedule_init(void)
}
schc->cpu_id = cpuid;
schc->curr = ULONG(buf + XEN_HYPER_OFFSET(schedule_data_curr));
- schc->idle = ULONG(buf + XEN_HYPER_OFFSET(schedule_data_idle));
+ if (MEMBER_EXISTS("schedule_data", "idle"))
+ schc->idle = ULONG(buf + XEN_HYPER_OFFSET(schedule_data_idle));
+ else
+ schc->idle = xht->idle_vcpu_array[cpuid];
schc->sched_priv ULONG(buf +
XEN_HYPER_OFFSET(schedule_data_sched_priv));
if (XEN_HYPER_VALID_MEMBER(schedule_data_tick))