[Xen-devel] [PATCH] Avoid race when moving cpu between cpupools

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

Moving cpus between cpupools is done under the schedule lock of the moved cpu.
When checking a cpu being member of a cpupool this must be done with the lock
of that cpu being held.
Hot-unplugging of physical cpus might encounter the same problems, but this
should happen only very rarely.

Signed-off-by: juergen.gross@xxxxxxxxxxxxxx


2 files changed, 35 insertions(+), 7 deletions(-)
xen/common/sched_credit.c |    3 ++-
xen/common/schedule.c     |   39 +++++++++++++++++++++++++++++++++------

Attachment: xen-work.patch
Description: Text Data

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel