On Mon, Feb 24, 2020 at 01:54:14PM -0800, Matthew Wilcox wrote:
> > First I think the implicit ARRAY_SIZE in readahead_page_batch is highly
> > dangerous, as it will do the wrong thing when passing a pointer or
> > function argument.
> 
> somebody already thought of that ;-)
> 
> #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + 
> __must_be_array(arr))

Ok.  Still find it pretty weird to design a primary interface that
just works with an array type.


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