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Description of problem:

Build and package the vfs iouring module. This brings significant performance improvements for file transfers.

Samba required libioring >= 0.4. RHEL 8.4 already offered version 0.7.

So we have to revert this feature, as you are first adding io_uring support and removing it again now?

io_uring was enabled in the kernel-ark configs because the config option is hidden behind CONFIG_EXPERT (as a result, there was no bug created to review the config option when it appeared upstream).  We are not yet ready to support io_uring, so I am indeed disabling it for 9.0.  The goal is to enable the feature in a future rhel 9 update.

I would expect software to be able to detect whether io_uring is present on a system and act accordingly.  Hopefully you don't have to revert code in order to run on a system without io_uring support.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (samba bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4438