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agent: reduce reference count for failed mount

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The kata agent adds a reference for each storage object before mount
and skip mount again if the storage object is known. We need to
remove the object reference if mount fails.

Fixes: #5364

Signed-off-by: Feng Wang <feng.wang@databricks.com>
This commit is contained in:
Feng Wang 2022-10-05 16:59:19 -07:00
parent ff62cedd26
commit c31cf7269e
1 changed files with 14 additions and 10 deletions
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24
src/agent/src/mount.rs
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@ -779,16 +779,20 @@ pub async fn add_storages(
} }
}; };
// Todo need to rollback the mounted storage if err met. let mount_point = match res {
Err(e) => {
if res.is_err() { error!(
error!( logger,
logger, "add_storages failed, storage: {:?}, error: {:?} ", storage, e
"add_storages failed, storage: {:?}, error: {:?} ", storage, res );
); let mut sb = sandbox.lock().await;
} sb.unset_sandbox_storage(&storage.mount_point)
.map_err(|e| warn!(logger, "fail to unset sandbox storage {:?}", e))
let mount_point = res?; .ok();
return Err(e);
}
Ok(m) => m,
};
if !mount_point.is_empty() { if !mount_point.is_empty() {
mount_list.push(mount_point); mount_list.push(mount_point);