The solution is summarized by Dario Faggioli at
http://lists.xen.org/archives/html/xen-devel/2014-09/msg03603.html.
Here is the solution:
- sanity checking input params in rt_dom_cntl()
- serialize rt_dom_cntl() itself against the global lock
- move the call to rt_update_deadline() from _alloc to _insert
Here is a history of the patch set:
v1: first patch to implement the solution by replying the thread; request
for comment.
v2: properly lock the data as proposed in the solution;
v3: add comments to the commit log to better explain the reason of the
implementation.
The whole patch set is:
Release-Acked-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
[PATCH for Xen 4.5 v3 1/2] xen: sanity check input and serialization
Reviewed-by: Dario Faggioli <dario.faggi...@citrix.com>
Reviewed-by: George Dunlap <george.dun...@eu.citrix.com>
[PATCH for Xen 4.5 v3 2/2] xen: serialize vcpu data in sched_rt.c
Reviewed-by: Dario Faggioli <dario.faggi...@citrix.com>
---
Meng Xu
PhD Student in Computer and Information Science
University of Pennsylvania
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