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SUSE:SLE-12-SP1:GA
xen.10697
57da8883-credit2-properly-schedule-migration-of...
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File 57da8883-credit2-properly-schedule-migration-of-running-vcpu.patch of Package xen.10697
# Commit 115e4c5e52c14c126cd8ae0dfe0322c95b65e3c8 # Date 2016-09-15 12:39:47 +0100 # Author Dario Faggioli <dario.faggioli@citrix.com> # Committer George Dunlap <george.dunlap@citrix.com> xen: credit2: properly schedule migration of a running vcpu. If wanting to migrate a vcpu that is actually running, we need to ask the scheduler to chime in as soon as possible, to have the vcpu itself stopped and actually moved. Make sure this happens by, after setting all the relevant flags, raising the scheduler softirq. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Acked-by: George Dunlap <george.dunlap@citrix.com> --- a/xen/common/sched_credit2.c +++ b/xen/common/sched_credit2.c @@ -1212,6 +1212,7 @@ void migrate(const struct scheduler *ops svc->migrate_rqd = trqd; set_bit(_VPF_migrating, &svc->vcpu->pause_flags); set_bit(__CSFLAG_runq_migrate_request, &svc->flags); + cpu_raise_softirq(svc->vcpu->processor, SCHEDULE_SOFTIRQ); } else {
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