Jinrong Liang cb171d4a23 device_manager: Avoid checking io_uring support when it's not needed
After testing, io_uring_is_supported() causes about 38ms of
overhead when creating virtio-blk. By modifying the position
of io_uring_is_supported(), the overhead of creating virtio-blk
is reduced to less than 1ms when we close io_uring.

Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
2022-10-27 22:21:51 -07:00
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