On Wed, 2006-11-15 at 11:17 -0500, Phillip Susi wrote:
> Tejun Heo wrote:
> >> The patch _seems_ to solve my problem. I am just really astonished when
> >> I read the diff file :D. Can I expect that it will be merged to the
> >> official kernel sources ?
> >
> > It seems that some devices choke when the bytes after CDB contain
> > garbage. I seem to recall that I read somewhere ATAPI device require
> > left command bytes cleared to zero but I can't find it anywhere now.
> > Maybe I'm just imagining. Anyways, yeah, I'll push it to upstream.
> >
>
> The original patch memsets the entire buffer only to copy over most of
> it right after. Could you amend the patch so that it memcpys first,
> then memsets only the remainder of the buffer? No sense wasting cpu
> cycles.
due to the funnies of how cpu caches work it might not actually be
faster though... Write Allocate and things like that are.. well fun.
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