On Fri, 2 Oct 2015, Jesper Dangaard Brouer wrote:

Thus, I need introducing new code like this patch and at the same time
have to reduce the number of instruction-cache misses/usage.  In this
case we solve the problem by kmem_cache_free_bulk() not getting called
too often. Thus, +17 bytes will hopefully not matter too much... but on
the other hand we sort-of know that calling kmem_cache_free_bulk() will
cause icache misses.

Can we just drop the WARN/BUG here? Nothing untoward happens if size == 0
right?

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