Re: [PATCH V10 18/19] block: kill QUEUE_FLAG_NO_SG_MERGE

Christoph Hellwig
2018-11-16T13:59:26Z

On Thu, Nov 15, 2018 at 06:18:11PM -0800, Omar Sandoval wrote:
> This commit message wasn't very clear. Is it the case that
> QUEUE_FLAG_NO_SG_MERGE is no longer set by any drivers?

I think he wants to say that not doing S/G merging is rather pointless
with the current setup of the I/O path, as it isn't going to save
you a significant amount of cycles.