On Fri, 2017-10-06 at 14:59 +0000, Parav Pandit wrote:
> > +     BUG_ON(!cep);
> 
> Do you need BUG_ON or can be converted to WARN__ and return?

Hello Bernard and Parav,

Using BUG_ON() in new code is considered unacceptable. See e.g. Linus Torvalds,
BUG_ON() in workingset_node_shadows_dec() triggers, LKML, 3 Oct 2016
(https://lkml.org/lkml/2016/10/4/1).

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