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| author | George Dunlap <george.dunlap@eu.citrix.com> | 2011-04-27 13:36:15 +0100 |
|---|---|---|
| committer | George Dunlap <george.dunlap@eu.citrix.com> | 2011-04-27 13:36:15 +0100 |
| commit | ff38d3faa7d0e1734237e81c2fea95e18c510dcd (patch) | |
| tree | 7589a305a45183a0eb2b2ba61dbd91276a6dd17f /xen/include/xen/sched-if.h | |
| parent | 9841d94c95bf97c3cd3c9ca14170fc88dc3b8305 (diff) | |
| download | xen-ff38d3faa7d0e1734237e81c2fea95e18c510dcd.tar.gz xen-ff38d3faa7d0e1734237e81c2fea95e18c510dcd.tar.bz2 xen-ff38d3faa7d0e1734237e81c2fea95e18c510dcd.zip | |
credit2: add a callback to migrate to a new cpu
In credit2, there needs to be a strong correlation between
v->processor and the runqueue to which a vcpu is assigned;
much of the code relies on this invariant. Allow credit2
to manage the actual migration itself.
This fixes the most recent credit2 bug reported on the list
(Xen BUG at sched_credit2.c:1606) in Xen 4.1, as well as
the bug at sched_credit2.c:811 in -unstable (which catches the
same condition earlier).
Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>
Diffstat (limited to 'xen/include/xen/sched-if.h')
| -rw-r--r-- | xen/include/xen/sched-if.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h index 486b9fd704..a03ceb1552 100644 --- a/xen/include/xen/sched-if.h +++ b/xen/include/xen/sched-if.h @@ -170,6 +170,8 @@ struct scheduler { bool_t tasklet_work_scheduled); int (*pick_cpu) (const struct scheduler *, struct vcpu *); + void (*migrate) (const struct scheduler *, struct vcpu *, + unsigned int); int (*adjust) (const struct scheduler *, struct domain *, struct xen_domctl_scheduler_op *); int (*adjust_global) (const struct scheduler *, |