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virtio-devices: Add helper to VirtioCommon for EventFd duplication

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Add a helper to VirtioCommon which returns duplicates of the EventFds
for kill and pause event.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2021-06-02 18:08:06 +00:00
committed by Bo Chen
parent df92495e31
commit 280bef834b
13 changed files with 21 additions and 284 deletions
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21
virtio-devices/src/block.rs
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@@ -554,26 +554,7 @@ impl VirtioDevice for Block {
let queue_evt = queue_evts.remove(0);
let queue = queues.remove(0);
let queue_size = queue.size;
let kill_evt = self
.common
.kill_evt
.as_ref()
.unwrap()
.try_clone()
.map_err(|e| {
error!("failed to clone kill_evt eventfd: {}", e);
ActivateError::BadActivate
})?;
let pause_evt = self
.common
.pause_evt
.as_ref()
.unwrap()
.try_clone()
.map_err(|e| {
error!("failed to clone pause_evt eventfd: {}", e);
ActivateError::BadActivate
})?;
let (kill_evt, pause_evt) = self.common.dup_eventfds();
let rate_limiter: Option<RateLimiter> = self
.rate_limiter_config