On Thu, Mar 19, 2009 at 1:10 PM, Andre Noll [off-list ref] wrote:

On 12:20, Dan Williams wrote:

quoted

Using src_list argument of async_xor() as a storage for dma addresses
implies sizeof(dma_addr_t) <= sizeof(struct page *) restriction which is
not always true (e.g. ppc440spe).

This message does not tell what the patch is going to do about that.
It would also be nice to mention (either in the log message or as a
comment) why allocating the dma_src arrays on the stack is not going
to be a problem.

True, and taking into account your other comment about the number of
parameters I think this is a good opportunity to solve this problem
rather than kick it down the road.  So I will prepare a rework to make
this memory caller provided.  This gives us the flexibility to use a
kmalloc'd buffer hanging off the stripe_head as Neil suggested in
another thread.

Regards,
Dan