Re: [PATCH liburing 1/1] man: add io_uring_register_region.3

[Pavel Begunkov <asml.silence@gmail.com>]

On 1/13/26 22:37, Jens Axboe wrote:
> On 1/13/26 2:31 PM, Gabriel Krisman Bertazi wrote:
>> Pavel Begunkov <asml.silence@gmail.com> writes:
>>
>>> Describe the region API. As it was created for a bunch of ideas in mind,
>>> it doesn't go into details about wait argument passing, which I assume
>>> will be a separate page the region description can refer to.
>>>
>>
>> Hey, Pavel.
> 
> I did a bunch of spelling and phrasing fixups when applying, can you
> take a look at the repo and send a patch for the others? Thanks!

"Upon successful completion, the memory region may then be used, for
example, to pass waiting parameters to the io_uring_enter(2) system
call in a more efficient manner as it avoids copying wait related data
for each wait event."

Doesn't matter much, but this change is somewhat misleading. Both copy
args same number of times (i.e. unsafe_get_user() instead of
copy_from_user()), which is why I was a bit vague with that
"in an efficient manner".

-- 
Pavel Begunkov