Re: [PATCH v2] Only advertise aio=io_uring if support is actually available

[Eric Blake]

On Thu, Apr 21, 2022 at 06:50:48PM +0200, Dirk Müller wrote:
> Change --help output for aio option to only list the aio backend options that
> are actually available. io_uring is an optional, linux only backend
> option so hide it for cases where it isn't there.

As pointed out by Dan, this commit message is not quite accurate.  It
hides only one of the two conditional options, but 'native' is also a
Linux-only optional backend (CONFIG_LINUX_AIO).

> 
> Reviewed-by: Eric Blake <eblake@redhat.com>
> Signed-off-by: Dirk Müller <dmueller@suse.de>
> ---
>  block/file-posix.c | 4 ++++
>  qemu-nbd.c         | 4 ++++
>  qemu-options.hx    | 6 +++++-
>  3 files changed, 13 insertions(+), 1 deletion(-)
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org