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Safe and sane multi-item storage removal (#11490)

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* Fix overlay prefix removal result

* Second part of the overlay prefix removal fix.

* Report only items deleted from storage in clear_prefix

* Fix kill_prefix

* Formatting

* Remove unused code

* Fixes

* Fixes

* Introduce clear_prefix host function v3

* Formatting

* Use v2 for now

* Fixes

* Formatting

* Docs

* Child prefix removal should also hide v3 for now

* Fixes

* Fixes

* Formatting

* Fixes

* apply_to_keys_whle takes start_at

* apply_to_keys_whle takes start_at

* apply_to_keys_whle takes start_at

* Cursor API; force limits

* Use unsafe deprecated functions

* Formatting

* Fixes

* Grumbles

* Fixes

* Docs

* Some nitpicks 🙈

* Update primitives/externalities/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Formatting

* Fixes

* cargo fmt

* Fixes

* Update primitives/io/src/lib.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Formatting

* Fixes

Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
This commit is contained in:
Gavin Wood
2022-05-29 12:56:26 +01:00
committed by GitHub
parent 189a310e4c
commit ecbd65fb95
45 changed files with 968 additions and 206 deletions
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substrate/frame/staking/src/pallet/impls.rs
+9
View File
@@ -585,8 +585,11 @@ impl<T: Config> Pallet<T> {
/// Clear all era information for given era.
pub(crate) fn clear_era_information(era_index: EraIndex) {
#[allow(deprecated)]
<ErasStakers<T>>::remove_prefix(era_index, None);
#[allow(deprecated)]
<ErasStakersClipped<T>>::remove_prefix(era_index, None);
#[allow(deprecated)]
<ErasValidatorPrefs<T>>::remove_prefix(era_index, None);
<ErasValidatorReward<T>>::remove(era_index);
<ErasRewardPoints<T>>::remove(era_index);
@@ -984,9 +987,13 @@ impl<T: Config> ElectionDataProvider for Pallet<T> {
#[cfg(feature = "runtime-benchmarks")]
fn clear() {
#[allow(deprecated)]
<Bonded<T>>::remove_all(None);
#[allow(deprecated)]
<Ledger<T>>::remove_all(None);
#[allow(deprecated)]
<Validators<T>>::remove_all();
#[allow(deprecated)]
<Nominators<T>>::remove_all();
T::VoterList::unsafe_clear();
@@ -1368,7 +1375,9 @@ impl<T: Config> SortedListProvider<T::AccountId> for UseNominatorsAndValidatorsM
fn unsafe_clear() {
// NOTE: Caller must ensure this doesn't lead to too many storage accesses. This is a
// condition of SortedListProvider::unsafe_clear.
#[allow(deprecated)]
Nominators::<T>::remove_all();
#[allow(deprecated)]
Validators::<T>::remove_all();
}
}
substrate/frame/staking/src/slashing.rs
+2
View File
@@ -557,7 +557,9 @@ impl<'a, T: 'a + Config> Drop for InspectingSpans<'a, T> {
/// Clear slashing metadata for an obsolete era.
pub(crate) fn clear_era_metadata<T: Config>(obsolete_era: EraIndex) {
#[allow(deprecated)]
<Pallet<T> as Store>::ValidatorSlashInEra::remove_prefix(&obsolete_era, None);
#[allow(deprecated)]
<Pallet<T> as Store>::NominatorSlashInEra::remove_prefix(&obsolete_era, None);
}
substrate/frame/staking/src/testing_utils.rs
+2
View File
@@ -36,9 +36,11 @@ const SEED: u32 = 0;
/// This function removes all validators and nominators from storage.
pub fn clear_validators_and_nominators<T: Config>() {
#[allow(deprecated)]
Validators::<T>::remove_all();
// whenever we touch nominators counter we should update `T::VoterList` as well.
#[allow(deprecated)]
Nominators::<T>::remove_all();
// NOTE: safe to call outside block production