Andrey Panin wrote:
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.
Beacuse i didnt know, i will check that and change.
Thanks.
(We should really use in cpu crc for Intel Nehalem, and dirty bit for
the rest of the architactures...)
+ kunmap_atomic(addr, KM_USER0);
+ return checksum;
+}
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