[Xen-devel] [PATCH 4/5] xen: Get idle data from alternative source

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

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@xxxxxxxxxx>

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))

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