Re: [PATCH] genalloc: Make the avail variable an atomic64_t

[Logan Gunthorpe]

On 25/10/17 09:32 AM, sbates@xxxxxxxxxxxx wrote:
> From: Stephen Bates <sbates@xxxxxxxxxxxx>
>
> If the amount of resources allocated to a gen_pool exceeds 2^32 then
> the avail atomic overflows and this causes problems when clients try
> and borrow resources from the pool.
>
> Add the <linux/atomic.h> header to pull in atomic64 operations on
> platforms that do not support them natively.
>
> Signed-off-by: Stephen Bates <sbates@xxxxxxxxxxxx>

Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>

This looks pretty straightforward to me.

Logan