Messages in this thread | | | Date | Tue, 14 May 2013 08:17:52 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH] kernel/workqueue.c: better to free related resources when failure occurs in wq_numa_init() |
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On Tue, May 14, 2013 at 08:25:20PM +0800, Chen Gang wrote: > > When NUMA node mapping not available for one cpu, need disabling NUMA > support and proceed. > > Also better to release unused resources (the original code can not > cause issue, only waste some memory). > > > Signed-off-by: Chen Gang <gang.chen@asianux.com> > --- > kernel/workqueue.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/kernel/workqueue.c b/kernel/workqueue.c > index 1ae6028..a763079 100644 > --- a/kernel/workqueue.c > +++ b/kernel/workqueue.c > @@ -4911,6 +4911,9 @@ static void __init wq_numa_init(void) > if (WARN_ON(node == NUMA_NO_NODE)) { > pr_warn("workqueue: NUMA node mapping not available for cpu%d, disabling NUMA support\n", cpu); > /* happens iff arch is bonkers, let's just proceed */ > + for_each_node(node) > + free_cpumask_var(tbl[node]); > + kfree(tbl);
Eh... let's just leave it alone. The path is taken iff the whole thing is seriously broken and we're triggering WARN. I don't think we need to worry about small memory wastage there.
Thanks.
-- tejun
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