On Fri, 18 May 2012, Joonsoo Kim wrote:
> Minimizing code in do {} while loop introduce a reduced fail rate
> of cmpxchg_double_slab. Below is output of 'slabinfo -r kmalloc-256'
> when './perf stat -r 33 hackbench 50 process 4000 > /dev/null' is done.
Ok. This works because the pages are frozen and the node lock has been
taken so the only concurrency to worry about is freeing of objects via
slab_free(). The cmpxchg is safe for that.
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
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