\On Fri, 2008-03-07 at 18:54 +0100, Andi Kleen wrote: > When a user is doing IO in the kernel and wants to avoid bouncing > it is best to just ask the block layer to allocate the memory for it. > This patch adds two simple wrappers: blk_kmalloc and blk_alloc_pages > and respective free functions to do this. > > blk_alloc_pages is a little unusual in that it takes size > instead of order arguments -- i did this because I have later > patches to convert it over to a new allocator which does not > require power of two for pages. I really don't like this ... it's wedging something in the block layer that shouldn't be there just to avoid doing it properly in terms of allocations on the device dma_mask. I also think the kfree takes a length part is asking for trouble because it's pretty fragile. However, if Jens will ack it, I'll (reluctantly) add it. James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
