On Mon, Nov 14, 2016 at 10:28:37AM -0700, Jens Axboe wrote:
> This is on top of for-4.10/dio, which has Christophs simplified sync
> O_DIRECT support and the IO poll bits.
>
> The restriction on 4 inline vecs is removed on the sync support, we
> just allocate the bio_vec array if we have to. I realize this negates
> parts of the win of the patch for sync, but it's still a lot leaner
> than the old code. And it means we use the same path for any type
> of sync O_DIRECT, instead of potentially bouncing between the two.
>
> Second patch is adding async support for the code base. Lightly
> tested. Performance results, from fio:
І'd much rather add a separate path pased on the same scheme. And
because I prefer that so much I actually did it a while ago, although
it will need some minor updates for the current tree:
http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/new-dio
I'll see if I can get it quickly updated..
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