On Mon, 06 Jan 2025 09:15:29 +0100, Christoph Hellwig wrote:
> blk_rq_map_sg is maze of nested loops. Untangle it by creating an
> iterator that returns [paddr,len] tuples for DMA mapping, and then
> implement the DMA logic on top of this. This not only removes code
> at the source level, but also generates nicer binary code:
>
> $ size block/blk-merge.o.*
> text data bss dec hex filename
> 10001 432 0 10433 28c1 block/blk-merge.o.new
> 10317 468 0 10785 2a21 block/blk-merge.o.old
>
> [...]
Applied, thanks!
[1/1] block: add a dma mapping iterator
commit: b7175e24d6acf79d9f3af9ce9d3d50de1fa748ec
Best regards,
--
Jens Axboe
