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storage_layer: we no longer clone for residency change

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This commit is contained in:
Joonas Koivunen
2023-08-16 15:41:53 +03:00
parent 3a7efc10a0
commit b65cb8ea05
1 changed files with 0 additions and 20 deletions
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20
pageserver/src/tenant/storage_layer.rs
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@@ -184,26 +184,6 @@ impl LayerAccessStats {
new
}
/// Creates a clone of `self` and records `new_status` in the clone.
///
/// The `new_status` is not recorded in `self`.
///
/// See [`record_residence_event`] for why you need to do this while holding the layer map lock.
///
/// [`record_residence_event`]: Self::record_residence_event
pub(crate) fn clone_for_residence_change(
&self,
new_status: LayerResidenceStatus,
) -> LayerAccessStats {
let clone = {
let inner = self.0.lock().unwrap();
inner.clone()
};
let new = LayerAccessStats(Mutex::new(clone));
new.record_residence_event(new_status, LayerResidenceEventReason::ResidenceChange);
new
}
/// Record a change in layer residency.
///
/// Recording the event must happen while holding the layer map lock to