Re: [PATCH] block/io_uring: improve error message when init fails

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Tue, Jan 23, 2024 at 02:50:44PM +0100, Fiona Ebner wrote:
> The man page for io_uring_queue_init states:
> 
> > io_uring_queue_init(3) returns 0 on success and -errno on failure.
> 
> and the man page for io_uring_setup (which is one of the functions
> where the return value of io_uring_queue_init() can come from) states:
> 
> > On error, a negative error code is returned. The caller should not
> > rely on errno variable.
> 
> Tested using 'sysctl kernel.io_uring_disabled=2'. Output before this
> change:
> 
> > failed to init linux io_uring ring
> 
> Output after this change:
> 
> > failed to init linux io_uring ring: Operation not permitted
> 
> Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
> ---
>  block/io_uring.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Thanks, applied to my master tree:
https://gitlab.com/stefanha/qemu/commits/master

Stefan

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