Re: [Patch v4 7/7] fuse: add io_uring test support

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Sat, Feb 07, 2026 at 08:09:01PM +0800, Brian Song wrote:
> This patch adds support for testing FUSE-over-io_uring. It can be
> enabled by setting the environment variable FUSE_OVER_IO_URING=1.
> 
>     $ FUSE_OVER_IO_URING=1 ./check -fuse
> 
> Additionally, the unmount detection logic is switched from `df` to
> `mount`. Using `df` triggers `statfs()`, which attempts to communicate
> with the FUSE daemon. During test teardown (when the daemon is being
> killed), this often fails or returns stale data, causing the test to
> misjudge the mount status.
> 
> Suggested-by: Kevin Wolf <kwolf@redhat.com>
> Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Brian Song <hibriansong@gmail.com>
> ---
>  tests/qemu-iotests/check     |  2 ++
>  tests/qemu-iotests/common.rc | 47 +++++++++++++++++++++++++-----------
>  2 files changed, 35 insertions(+), 14 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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