Way to change/modify entries

[YoSTEALTH]

Any way to change/modify entries of the io_uring after io_uring_queue_init() has been initialized?

[axboe]

It is not, sq/cq ring entries are fixed past initialization.

[YoSTEALTH]

Goal is to use 1 io_uring event manager per thread. There is a chance of multiple functions running its own event manager and thus conflicting(in term of wait) with each other. A simple solution to have 1 running ring is by setting an global ring. But function-1 might only need say 8-entries and function-2 will need max entries. Thus a need to modify entries.

I was thinking maybe closing old ring, and starting a new. The problem being what happens to waiting events in old ring.

Not sure how monkey patching oldptr = newptr using realloc at user-end will effect io_uring back-end.