On Thu, Sep 01, 2011 at 06:24:22PM -0400, Christoph Hellwig wrote: > On Thu, Sep 01, 2011 at 03:18:54PM -0700, Darrick J. Wong wrote: > > I suspect it would be pretty easy to adapt the Makefile to generate the > > relevant .c and .h files; in particular it could be useful to use the crypto > > framework for crc32 on the off chance anyone wants to provide hwaccel for that > > too. > > crc32 or crc32c? Note that there already is a hardware optimized crc32c > for recent Intel CPUs in arch/x86/crypto/crc32c-intel.c. crc32, since it currently doesn't use the crypto api at all, and Bob was interested in implementing slice-by-8 for it. Though I suppose so long as there aren't any reasons to override the sw crc32 implementation we could just fall back to Bob's earlier patch to implement slice-by-8 for crc32? <shrug> I don't mind implementing faster crc32/crc32c. (As far as crc32c goes, my motivation is to make sw crc32c faster for the cases where you don't have Intel hw.) --D -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
