[PATCH 4/5] nvme: split out metadata vs non metadata end_io uring_cmd completions

[Jens Axboe]

On 9/26/22 8:43 AM, Christoph Hellwig wrote:
> On Mon, Sep 26, 2022 at 08:41:38AM -0600, Jens Axboe wrote:
>> Sure, I don't really care. What name do you want for it?
> 
> Maybe slow and fast?  Or simple and meta?

So you want 'result' in a named struct too then? Because right now
it looks like this:

struct nvme_uring_cmd_pdu {
         union {
                 struct bio *bio;
                 struct request *req;
         };
         u32 meta_len;
         u32 nvme_status;
         union {
                 struct {
                         void *meta; /* kernel-resident buffer */
                         void __user *meta_buffer;
                 };
                 u64 result;
         };
};

Or just the union named so it's clear it's a union? That'd make it

pdu->u.meta

and so forth. I think that might be cleaner.

-- 
Jens Axboe