Re: [PATCH 4/4] add ksm kernel shared memory driver.

Andrey Panin
2009-04-06T09:14:11Z

On 094, 04 04, 2009 at 05:35:22PM +0300, Izik Eidus wrote:

<SNIP>

> +static inline u32 calc_checksum(struct page *page)
> +{
> + u32 checksum;
> + void *addr = kmap_atomic(page, KM_USER0);
> + checksum = jhash(addr, PAGE_SIZE, 17);

Why jhash2() is not used here ? It's faster and leads to smaller code size.

> + kunmap_atomic(addr, KM_USER0);
> + return checksum;
> +}