Re: semantics of rhashtable and sysvipc

[Davidlohr Bueso]

On Wed, 23 May 2018, Linus Torvalds wrote:

> So I'm perfectly fine with getting rid of 'tables_initialized'. But no, not
> with a BUG_ON().
>
> If you cannot guarantee that the allocation works (using __GFP_NOFAIL is
> ok, for example - but it only works with small allocations), then you need
> to handle the allocation failure.

Note that even if the allocation was guaranteed, there are still param validations
and rhashtable_init() can return -EINVAL.