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virtio-devices: vhost_user: Support inflight I/O tracking

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Vhost user INFLIGHT_SHMFD protocol feature supports inflight I/O
tracking, this commit implement the vhost-user device (master) support
of the feature. Till this commit, specific vhost-user devices (blk, fs,
or net) have not enable this feature.

Signed-off-by: Jiachen Zhang <zhangjiachen.jaycee@bytedance.com>
This commit is contained in:
Jiachen Zhang
2021-06-10 15:37:30 +08:00
committed by Sebastien Boeuf
parent f060ecd705
commit bfd4aa2fed
8 changed files with 67 additions and 4 deletions
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18
vhost_user_backend/src/lib.rs
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@@ -959,6 +959,24 @@ impl<S: VhostUserBackend> VhostUserSlaveReqHandlerMut for VhostUserHandler<S> {
Ok(())
}
fn get_inflight_fd(
&mut self,
_: &vhost::vhost_user::message::VhostUserInflight,
) -> std::result::Result<
(vhost::vhost_user::message::VhostUserInflight, i32),
vhost::vhost_user::Error,
> {
std::unimplemented!()
}
fn set_inflight_fd(
&mut self,
_: &vhost::vhost_user::message::VhostUserInflight,
_: std::fs::File,
) -> std::result::Result<(), vhost::vhost_user::Error> {
std::unimplemented!()
}
}
impl<S: VhostUserBackend> Drop for VhostUserHandler<S> {