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

From: Andrey Panin
Date: Mon Apr 06 2009 - 05:14:13 EST


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;
> +}

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/