Re: [PATCH,RFC] faster kmalloc lookup

[Nikita Danilov]

Marcus Alanen writes:
 > >Most kmalloc calls get constant size argument (usually
 > >sizeof(something)). So, if switch() is used in stead of loop (and
 > >kmalloc made inline), compiler would be able to optimize away
 > >cache_sizes[] selection completely. Attached (ugly) patch does this.
 > 
 > Perhaps a compile-time test to check if the argument is
 > a constant, and only in that case call your new kmalloc, otherwise
 > a non-inline kmalloc call? With your current patch, a non-constant
 > size argument to kmalloc means that the function is inlined anyway,
 > leading to unnecessary bloat in the resulting image.

Yes, exactly.

 > 
 > Marcus
 > 

Nikita.