add fast-unstsake pallet to all runtimes (#6050)

* add fast-unstsake pallet to all runtimes

* ".git/.scripts/fmt.sh" 1

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_fast_unstake

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_fast_unstake

* fix up all the weight stuff

* update substrate

* update mistake in kusama

* add stub file

* Update runtime/polkadot/src/lib.rs

Co-authored-by: Nitwit <47109040+BustaNit@users.noreply.github.com>

* Update runtime/westend/src/lib.rs

Co-authored-by: Nitwit <47109040+BustaNit@users.noreply.github.com>

* cargo update -p sp-io

* add signed extension as well

* Revert "add signed extension as well"

This reverts commit deb936fe5a9a13a62d02757045b1dfa40dccb190.

* cargo update -p sp-io

* ".git/.scripts/bench-bot.sh" runtime kusama-dev pallet_fast_unstake

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_fast_unstake

* update sub

* integrate latest substrate changes

* ".git/.scripts/fmt.sh" 1

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_fast_unstake

Co-authored-by: command-bot <>
Co-authored-by: Nitwit <47109040+BustaNit@users.noreply.github.com>

polkadot/runtime/kusama/Cargo.toml

@@ -50,6 +50,7 @@ pallet-collective = { git = "https://github.com/paritytech/substrate", branch =
 pallet-democracy = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-elections-phragmen = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-election-provider-multi-phase = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+pallet-fast-unstake = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 frame-executive = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-grandpa = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-gilt = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -143,6 +144,7 @@ std = [
 	"pallet-collective/std",
 	"pallet-elections-phragmen/std",
 	"pallet-election-provider-multi-phase/std",
+	"pallet-fast-unstake/std",
 	"pallet-democracy/std",
 	"pallet-gilt/std",
 	"pallet-grandpa/std",
@@ -206,6 +208,7 @@ runtime-benchmarks = [
 	"pallet-elections-phragmen/runtime-benchmarks",
 	"pallet-election-provider-multi-phase/runtime-benchmarks",
 	"pallet-election-provider-support-benchmarking/runtime-benchmarks",
+	"pallet-fast-unstake/runtime-benchmarks",
 	"pallet-gilt/runtime-benchmarks",
 	"pallet-grandpa/runtime-benchmarks",
 	"pallet-identity/runtime-benchmarks",
@@ -251,6 +254,7 @@ try-runtime = [
 	"pallet-collective/try-runtime",
 	"pallet-elections-phragmen/try-runtime",
 	"pallet-election-provider-multi-phase/try-runtime",
+	"pallet-fast-unstake/try-runtime",
 	"pallet-democracy/try-runtime",
 	"pallet-gilt/try-runtime",
 	"pallet-grandpa/try-runtime",

polkadot/runtime/kusama/src/lib.rs

@@ -621,6 +621,17 @@ impl pallet_staking::Config for Runtime {
 	type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
 }
 
+impl pallet_fast_unstake::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type DepositCurrency = Balances;
+	type Deposit = frame_support::traits::ConstU128<{ CENTS * 100 }>;
+	type ControlOrigin = EitherOfDiverse<
+		EnsureRoot<AccountId>,
+		pallet_collective::EnsureProportionAtLeast<AccountId, CouncilCollective, 1, 2>,
+	>;
+	type WeightInfo = weights::pallet_fast_unstake::WeightInfo<Runtime>;
+}
+
 parameter_types! {
 	pub const ProposalBond: Permill = Permill::from_percent(5);
 	pub const ProposalBondMinimum: Balance = 2000 * CENTS;
@@ -1045,7 +1056,8 @@ impl InstanceFilter<RuntimeCall> for ProxyType {
 				RuntimeCall::Slots(..) |
 				RuntimeCall::Auctions(..) | // Specifically omitting the entire XCM Pallet
 				RuntimeCall::VoterList(..) |
-				RuntimeCall::NominationPools(..)
+				RuntimeCall::NominationPools(..) |
+				RuntimeCall::FastUnstake(..)
 			),
 			ProxyType::Governance =>
 				matches!(
@@ -1061,7 +1073,9 @@ impl InstanceFilter<RuntimeCall> for ProxyType {
 			ProxyType::Staking => {
 				matches!(
 					c,
-					RuntimeCall::Staking(..) | RuntimeCall::Session(..) | RuntimeCall::Utility(..)
+					RuntimeCall::Staking(..) |
+						RuntimeCall::Session(..) | RuntimeCall::Utility(..) |
+						RuntimeCall::FastUnstake(..)
 				)
 			},
 			ProxyType::IdentityJudgement => matches!(
@@ -1389,6 +1403,9 @@ construct_runtime! {
 		// nomination pools: extension to staking.
 		NominationPools: pallet_nomination_pools::{Pallet, Call, Storage, Event<T>, Config<T>} = 41,
 
+		// Fast unstake pallet: extension to staking.
+		FastUnstake: pallet_fast_unstake = 42,
+
 		// Parachains pallets. Start indices at 50 to leave room.
 		ParachainsOrigin: parachains_origin::{Pallet, Origin} = 50,
 		Configuration: parachains_configuration::{Pallet, Call, Storage, Config<T>} = 51,
@@ -1500,6 +1517,7 @@ mod benches {
 		[pallet_elections_phragmen, PhragmenElection]
 		[pallet_election_provider_multi_phase, ElectionProviderMultiPhase]
 		[frame_election_provider_support, ElectionProviderBench::<Runtime>]
+		[pallet_fast_unstake, FastUnstake]
 		[pallet_gilt, Gilt]
 		[pallet_identity, Identity]
 		[pallet_im_online, ImOnline]

polkadot/runtime/kusama/src/weights/mod.rs

@@ -26,6 +26,7 @@ pub mod pallet_collective_technical_committee;
 pub mod pallet_democracy;
 pub mod pallet_election_provider_multi_phase;
 pub mod pallet_elections_phragmen;
+pub mod pallet_fast_unstake;
 pub mod pallet_gilt;
 pub mod pallet_identity;
 pub mod pallet_im_online;

polkadot/runtime/kusama/src/weights/pallet_fast_unstake.rs

@@ -0,0 +1,114 @@
+// Copyright 2017-2022 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Polkadot is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+//! Autogenerated weights for `pallet_fast_unstake`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2022-09-27, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! HOSTNAME: `bm3`, CPU: `Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("kusama-dev"), DB CACHE: 1024
+
+// Executed Command:
+// /home/benchbot/cargo_target_dir/production/polkadot
+// benchmark
+// pallet
+// --steps=50
+// --repeat=20
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --heap-pages=4096
+// --pallet=pallet_fast_unstake
+// --chain=kusama-dev
+// --header=./file_header.txt
+// --output=./runtime/kusama/src/weights/
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+
+use frame_support::{traits::Get, weights::Weight};
+use sp_std::marker::PhantomData;
+
+/// Weight functions for `pallet_fast_unstake`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> pallet_fast_unstake::WeightInfo for WeightInfo<T> {
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking ValidatorCount (r:1 w:0)
+	// Storage: ElectionProviderMultiPhase CurrentPhase (r:1 w:0)
+	// Storage: FastUnstake Head (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Staking SlashingSpans (r:1 w:0)
+	// Storage: Staking Bonded (r:1 w:1)
+	// Storage: Staking Validators (r:1 w:0)
+	// Storage: Staking Nominators (r:1 w:0)
+	// Storage: System Account (r:1 w:1)
+	// Storage: Balances Locks (r:1 w:1)
+	// Storage: Staking Ledger (r:0 w:1)
+	// Storage: Staking Payee (r:0 w:1)
+	fn on_idle_unstake() -> Weight {
+		Weight::from_ref_time(64_798_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(11 as u64))
+			.saturating_add(T::DbWeight::get().writes(6 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking ValidatorCount (r:1 w:0)
+	// Storage: ElectionProviderMultiPhase CurrentPhase (r:1 w:0)
+	// Storage: FastUnstake Head (r:1 w:1)
+	// Storage: FastUnstake Queue (r:2 w:1)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Staking ErasStakers (r:56 w:0)
+	/// The range of component `x` is `[28, 3584]`.
+	fn on_idle_check(x: u32, ) -> Weight {
+		Weight::from_ref_time(412_389_000 as u64)
+			// Standard Error: 10_902
+			.saturating_add(Weight::from_ref_time(10_950_753 as u64).saturating_mul(x as u64))
+			.saturating_add(T::DbWeight::get().reads(64 as u64))
+			.saturating_add(T::DbWeight::get().reads((1 as u64).saturating_mul(x as u64)))
+			.saturating_add(T::DbWeight::get().writes(3 as u64))
+	}
+	// Storage: Staking Ledger (r:1 w:1)
+	// Storage: FastUnstake Queue (r:1 w:1)
+	// Storage: FastUnstake Head (r:1 w:0)
+	// Storage: Staking Validators (r:1 w:0)
+	// Storage: Staking Nominators (r:1 w:1)
+	// Storage: Staking CounterForNominators (r:1 w:1)
+	// Storage: VoterList ListNodes (r:1 w:1)
+	// Storage: VoterList ListBags (r:1 w:1)
+	// Storage: VoterList CounterForListNodes (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Balances Locks (r:1 w:1)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	fn register_fast_unstake() -> Weight {
+		Weight::from_ref_time(84_738_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(12 as u64))
+			.saturating_add(T::DbWeight::get().writes(9 as u64))
+	}
+	// Storage: Staking Ledger (r:1 w:0)
+	// Storage: FastUnstake Queue (r:1 w:1)
+	// Storage: FastUnstake Head (r:1 w:0)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	fn deregister() -> Weight {
+		Weight::from_ref_time(23_369_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(4 as u64))
+			.saturating_add(T::DbWeight::get().writes(2 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:0 w:1)
+	fn control() -> Weight {
+		Weight::from_ref_time(3_991_000 as u64)
+			.saturating_add(T::DbWeight::get().writes(1 as u64))
+	}
+}

polkadot/runtime/polkadot/Cargo.toml

@@ -47,6 +47,7 @@ pallet-collective = { git = "https://github.com/paritytech/substrate", branch =
 pallet-democracy = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-elections-phragmen = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-election-provider-multi-phase = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+pallet-fast-unstake = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 frame-executive = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-grandpa = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-identity = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -139,6 +140,7 @@ std = [
 	"pallet-elections-phragmen/std",
 	"pallet-election-provider-multi-phase/std",
 	"pallet-democracy/std",
+	"pallet-fast-unstake/std",
 	"pallet-grandpa/std",
 	"pallet-identity/std",
 	"pallet-im-online/std",
@@ -194,6 +196,7 @@ runtime-benchmarks = [
 	"pallet-elections-phragmen/runtime-benchmarks",
 	"pallet-election-provider-multi-phase/runtime-benchmarks",
 	"pallet-election-provider-support-benchmarking/runtime-benchmarks",
+	"pallet-fast-unstake/runtime-benchmarks",
 	"pallet-grandpa/runtime-benchmarks",
 	"pallet-identity/runtime-benchmarks",
 	"pallet-im-online/runtime-benchmarks",
@@ -237,6 +240,7 @@ try-runtime = [
 	"pallet-collective/try-runtime",
 	"pallet-elections-phragmen/try-runtime",
 	"pallet-election-provider-multi-phase/try-runtime",
+	"pallet-fast-unstake/try-runtime",
 	"pallet-democracy/try-runtime",
 	"pallet-grandpa/try-runtime",
 	"pallet-identity/try-runtime",

polkadot/runtime/polkadot/src/lib.rs

@@ -566,6 +566,17 @@ impl pallet_staking::Config for Runtime {
 	type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
 }
 
+impl pallet_fast_unstake::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type DepositCurrency = Balances;
+	type Deposit = frame_support::traits::ConstU128<{ UNITS }>;
+	type ControlOrigin = EitherOfDiverse<
+		EnsureRoot<AccountId>,
+		pallet_collective::EnsureProportionAtLeast<AccountId, CouncilCollective, 1, 2>,
+	>;
+	type WeightInfo = weights::pallet_fast_unstake::WeightInfo<Runtime>;
+}
+
 parameter_types! {
 	// Minimum 4 CENTS/byte
 	pub const BasicDeposit: Balance = deposit(1, 258);
@@ -1133,7 +1144,8 @@ impl InstanceFilter<RuntimeCall> for ProxyType {
 				RuntimeCall::Slots(..) |
 				RuntimeCall::Auctions(..) | // Specifically omitting the entire XCM Pallet
 				RuntimeCall::VoterList(..) |
-				RuntimeCall::NominationPools(..)
+				RuntimeCall::NominationPools(..) |
+				RuntimeCall::FastUnstake(..)
 			),
 			ProxyType::Governance =>
 				matches!(
@@ -1149,7 +1161,9 @@ impl InstanceFilter<RuntimeCall> for ProxyType {
 			ProxyType::Staking => {
 				matches!(
 					c,
-					RuntimeCall::Staking(..) | RuntimeCall::Session(..) | RuntimeCall::Utility(..)
+					RuntimeCall::Staking(..) |
+						RuntimeCall::Session(..) | RuntimeCall::Utility(..) |
+						RuntimeCall::FastUnstake(..)
 				)
 			},
 			ProxyType::IdentityJudgement => matches!(
@@ -1467,9 +1481,12 @@ construct_runtime! {
 		// Provides a semi-sorted list of nominators for staking.
 		VoterList: pallet_bags_list::<Instance1>::{Pallet, Call, Storage, Event<T>} = 37,
 
-		// nomination pools: extension to staking.
+		// Nomination pools: extension to staking.
 		NominationPools: pallet_nomination_pools::{Pallet, Call, Storage, Event<T>, Config<T>} = 39,
 
+		// Fast unstake pallet: extension to staking.
+		FastUnstake: pallet_fast_unstake = 40,
+
 		// Parachains pallets. Start indices at 50 to leave room.
 		ParachainsOrigin: parachains_origin::{Pallet, Origin} = 50,
 		Configuration: parachains_configuration::{Pallet, Call, Storage, Config<T>} = 51,
@@ -1582,6 +1599,7 @@ mod benches {
 		[pallet_elections_phragmen, PhragmenElection]
 		[pallet_election_provider_multi_phase, ElectionProviderMultiPhase]
 		[frame_election_provider_support, ElectionProviderBench::<Runtime>]
+		[pallet_fast_unstake, FastUnstake]
 		[pallet_identity, Identity]
 		[pallet_im_online, ImOnline]
 		[pallet_indices, Indices]

polkadot/runtime/polkadot/src/weights/mod.rs

@@ -26,6 +26,7 @@ pub mod pallet_collective_technical_committee;
 pub mod pallet_democracy;
 pub mod pallet_election_provider_multi_phase;
 pub mod pallet_elections_phragmen;
+pub mod pallet_fast_unstake;
 pub mod pallet_identity;
 pub mod pallet_im_online;
 pub mod pallet_indices;

polkadot/runtime/polkadot/src/weights/pallet_fast_unstake.rs

@@ -0,0 +1,114 @@
+// Copyright 2017-2022 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Polkadot is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+//! Autogenerated weights for `pallet_fast_unstake`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2022-09-27, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! HOSTNAME: `bm3`, CPU: `Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("polkadot-dev"), DB CACHE: 1024
+
+// Executed Command:
+// /home/benchbot/cargo_target_dir/production/polkadot
+// benchmark
+// pallet
+// --steps=50
+// --repeat=20
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --heap-pages=4096
+// --pallet=pallet_fast_unstake
+// --chain=polkadot-dev
+// --header=./file_header.txt
+// --output=./runtime/polkadot/src/weights/
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+
+use frame_support::{traits::Get, weights::Weight};
+use sp_std::marker::PhantomData;
+
+/// Weight functions for `pallet_fast_unstake`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> pallet_fast_unstake::WeightInfo for WeightInfo<T> {
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking ValidatorCount (r:1 w:0)
+	// Storage: ElectionProviderMultiPhase CurrentPhase (r:1 w:0)
+	// Storage: FastUnstake Head (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Staking SlashingSpans (r:1 w:0)
+	// Storage: Staking Bonded (r:1 w:1)
+	// Storage: Staking Validators (r:1 w:0)
+	// Storage: Staking Nominators (r:1 w:0)
+	// Storage: System Account (r:1 w:1)
+	// Storage: Balances Locks (r:1 w:1)
+	// Storage: Staking Ledger (r:0 w:1)
+	// Storage: Staking Payee (r:0 w:1)
+	fn on_idle_unstake() -> Weight {
+		Weight::from_ref_time(67_082_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(11 as u64))
+			.saturating_add(T::DbWeight::get().writes(6 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking ValidatorCount (r:1 w:0)
+	// Storage: ElectionProviderMultiPhase CurrentPhase (r:1 w:0)
+	// Storage: FastUnstake Head (r:1 w:1)
+	// Storage: FastUnstake Queue (r:2 w:1)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Staking ErasStakers (r:56 w:0)
+	/// The range of component `x` is `[28, 3584]`.
+	fn on_idle_check(x: u32, ) -> Weight {
+		Weight::from_ref_time(504_317_000 as u64)
+			// Standard Error: 18_023
+			.saturating_add(Weight::from_ref_time(14_203_535 as u64).saturating_mul(x as u64))
+			.saturating_add(T::DbWeight::get().reads(64 as u64))
+			.saturating_add(T::DbWeight::get().reads((1 as u64).saturating_mul(x as u64)))
+			.saturating_add(T::DbWeight::get().writes(3 as u64))
+	}
+	// Storage: Staking Ledger (r:1 w:1)
+	// Storage: FastUnstake Queue (r:1 w:1)
+	// Storage: FastUnstake Head (r:1 w:0)
+	// Storage: Staking Validators (r:1 w:0)
+	// Storage: Staking Nominators (r:1 w:1)
+	// Storage: Staking CounterForNominators (r:1 w:1)
+	// Storage: VoterList ListNodes (r:2 w:2)
+	// Storage: VoterList ListBags (r:1 w:1)
+	// Storage: VoterList CounterForListNodes (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Balances Locks (r:1 w:1)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	fn register_fast_unstake() -> Weight {
+		Weight::from_ref_time(90_682_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(13 as u64))
+			.saturating_add(T::DbWeight::get().writes(10 as u64))
+	}
+	// Storage: Staking Ledger (r:1 w:0)
+	// Storage: FastUnstake Queue (r:1 w:1)
+	// Storage: FastUnstake Head (r:1 w:0)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	fn deregister() -> Weight {
+		Weight::from_ref_time(23_926_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(4 as u64))
+			.saturating_add(T::DbWeight::get().writes(2 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:0 w:1)
+	fn control() -> Weight {
+		Weight::from_ref_time(3_899_000 as u64)
+			.saturating_add(T::DbWeight::get().writes(1 as u64))
+	}
+}

polkadot/runtime/westend/Cargo.toml

@@ -48,6 +48,7 @@ pallet-collective = { git = "https://github.com/paritytech/substrate", branch =
 pallet-democracy = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-elections-phragmen = { package = "pallet-elections-phragmen", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-election-provider-multi-phase = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+pallet-fast-unstake = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-grandpa = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-identity = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-im-online = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -135,6 +136,7 @@ std = [
 	"pallet-collective/std",
 	"pallet-elections-phragmen/std",
 	"pallet-election-provider-multi-phase/std",
+	"pallet-fast-unstake/std",
 	"pallet-democracy/std",
 	"pallet-grandpa/std",
 	"pallet-identity/std",
@@ -196,6 +198,7 @@ runtime-benchmarks = [
 	"pallet-elections-phragmen/runtime-benchmarks",
 	"pallet-election-provider-multi-phase/runtime-benchmarks",
 	"pallet-election-provider-support-benchmarking/runtime-benchmarks",
+	"pallet-fast-unstake/runtime-benchmarks",
 	"pallet-grandpa/runtime-benchmarks",
 	"pallet-identity/runtime-benchmarks",
 	"pallet-im-online/runtime-benchmarks",
@@ -235,6 +238,7 @@ try-runtime = [
 	"pallet-collective/try-runtime",
 	"pallet-elections-phragmen/try-runtime",
 	"pallet-election-provider-multi-phase/try-runtime",
+	"pallet-fast-unstake/try-runtime",
 	"pallet-democracy/try-runtime",
 	"pallet-grandpa/try-runtime",
 	"pallet-identity/try-runtime",

polkadot/runtime/westend/src/lib.rs

@@ -517,6 +517,14 @@ impl pallet_staking::Config for Runtime {
 	type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
 }
 
+impl pallet_fast_unstake::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type DepositCurrency = Balances;
+	type Deposit = frame_support::traits::ConstU128<{ UNITS }>;
+	type ControlOrigin = EnsureRoot<AccountId>;
+	type WeightInfo = weights::pallet_fast_unstake::WeightInfo<Runtime>;
+}
+
 parameter_types! {
 	pub const MaxAuthorities: u32 = 100_000;
 }
@@ -804,12 +812,15 @@ impl InstanceFilter<RuntimeCall> for ProxyType {
 				RuntimeCall::Slots(..) |
 				RuntimeCall::Auctions(..) | // Specifically omitting the entire XCM Pallet
 				RuntimeCall::VoterList(..) |
-				RuntimeCall::NominationPools(..)
+				RuntimeCall::NominationPools(..) |
+				RuntimeCall::FastUnstake(..)
 			),
 			ProxyType::Staking => {
 				matches!(
 					c,
-					RuntimeCall::Staking(..) | RuntimeCall::Session(..) | RuntimeCall::Utility(..)
+					RuntimeCall::Staking(..) |
+						RuntimeCall::Session(..) | RuntimeCall::Utility(..) |
+						RuntimeCall::FastUnstake(..)
 				)
 			},
 			ProxyType::SudoBalances => match c {
@@ -1126,6 +1137,9 @@ construct_runtime! {
 		// Nomination pools for staking.
 		NominationPools: pallet_nomination_pools::{Pallet, Call, Storage, Event<T>, Config<T>} = 29,
 
+		// Fast unstake pallet: extension to staking.
+		FastUnstake: pallet_fast_unstake = 30,
+
 		// Parachains pallets. Start indices at 40 to leave room.
 		ParachainsOrigin: parachains_origin::{Pallet, Origin} = 41,
 		Configuration: parachains_configuration::{Pallet, Call, Storage, Config<T>} = 42,
@@ -1233,6 +1247,7 @@ mod benches {
 		[pallet_balances, Balances]
 		[pallet_election_provider_multi_phase, ElectionProviderMultiPhase]
 		[frame_election_provider_support, ElectionProviderBench::<Runtime>]
+		[pallet_fast_unstake, FastUnstake]
 		[pallet_identity, Identity]
 		[pallet_im_online, ImOnline]
 		[pallet_indices, Indices]

polkadot/runtime/westend/src/weights/mod.rs

@@ -20,6 +20,7 @@ pub mod frame_system;
 pub mod pallet_bags_list;
 pub mod pallet_balances;
 pub mod pallet_election_provider_multi_phase;
+pub mod pallet_fast_unstake;
 pub mod pallet_identity;
 pub mod pallet_im_online;
 pub mod pallet_indices;

polkadot/runtime/westend/src/weights/pallet_fast_unstake.rs

@@ -0,0 +1,116 @@
+// Copyright 2017-2022 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Polkadot is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+//! Autogenerated weights for `pallet_fast_unstake`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2022-09-28, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! HOSTNAME: `bm3`, CPU: `Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("westend-dev"), DB CACHE: 1024
+
+// Executed Command:
+// /home/benchbot/cargo_target_dir/production/polkadot
+// benchmark
+// pallet
+// --steps=50
+// --repeat=20
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --heap-pages=4096
+// --pallet=pallet_fast_unstake
+// --chain=westend-dev
+// --header=./file_header.txt
+// --output=./runtime/westend/src/weights/
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+
+use frame_support::{traits::Get, weights::Weight};
+use sp_std::marker::PhantomData;
+
+/// Weight functions for `pallet_fast_unstake`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> pallet_fast_unstake::WeightInfo for WeightInfo<T> {
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking ValidatorCount (r:1 w:0)
+	// Storage: ElectionProviderMultiPhase CurrentPhase (r:1 w:0)
+	// Storage: FastUnstake Head (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Staking SlashingSpans (r:1 w:0)
+	// Storage: Staking Bonded (r:1 w:1)
+	// Storage: Staking Validators (r:1 w:0)
+	// Storage: Staking Nominators (r:1 w:0)
+	// Storage: System Account (r:1 w:1)
+	// Storage: Balances Locks (r:1 w:1)
+	// Storage: Staking Ledger (r:0 w:1)
+	// Storage: Staking Payee (r:0 w:1)
+	fn on_idle_unstake() -> Weight {
+		Weight::from_ref_time(71_751_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(11 as u64))
+			.saturating_add(T::DbWeight::get().writes(6 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking ValidatorCount (r:1 w:0)
+	// Storage: ElectionProviderMultiPhase CurrentPhase (r:1 w:0)
+	// Storage: FastUnstake Head (r:1 w:1)
+	// Storage: FastUnstake Queue (r:2 w:1)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Staking ErasStakers (r:4 w:0)
+	/// The range of component `x` is `[2, 256]`.
+	fn on_idle_check(x: u32, ) -> Weight {
+		Weight::from_ref_time(68_336_000 as u64)
+			// Standard Error: 9_399
+			.saturating_add(Weight::from_ref_time(13_544_336 as u64).saturating_mul(x as u64))
+			.saturating_add(T::DbWeight::get().reads(12 as u64))
+			.saturating_add(T::DbWeight::get().reads((1 as u64).saturating_mul(x as u64)))
+			.saturating_add(T::DbWeight::get().writes(3 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking Ledger (r:1 w:1)
+	// Storage: FastUnstake Queue (r:1 w:1)
+	// Storage: FastUnstake Head (r:1 w:0)
+	// Storage: Staking Validators (r:1 w:0)
+	// Storage: Staking Nominators (r:1 w:1)
+	// Storage: Staking CounterForNominators (r:1 w:1)
+	// Storage: VoterList ListNodes (r:1 w:1)
+	// Storage: VoterList ListBags (r:1 w:1)
+	// Storage: VoterList CounterForListNodes (r:1 w:1)
+	// Storage: Staking CurrentEra (r:1 w:0)
+	// Storage: Balances Locks (r:1 w:1)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	fn register_fast_unstake() -> Weight {
+		Weight::from_ref_time(93_252_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(13 as u64))
+			.saturating_add(T::DbWeight::get().writes(9 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:1 w:0)
+	// Storage: Staking Ledger (r:1 w:0)
+	// Storage: FastUnstake Queue (r:1 w:1)
+	// Storage: FastUnstake Head (r:1 w:0)
+	// Storage: FastUnstake CounterForQueue (r:1 w:1)
+	fn deregister() -> Weight {
+		Weight::from_ref_time(40_994_000 as u64)
+			.saturating_add(T::DbWeight::get().reads(5 as u64))
+			.saturating_add(T::DbWeight::get().writes(2 as u64))
+	}
+	// Storage: FastUnstake ErasToCheckPerBlock (r:0 w:1)
+	fn control() -> Weight {
+		Weight::from_ref_time(4_420_000 as u64)
+			.saturating_add(T::DbWeight::get().writes(1 as u64))
+	}
+}