[PATCH 1/7] rust: block: update ARef and AlwaysRefCounted imports from sync::aref

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Update call sites in the block subsystem to import `ARef` and
`AlwaysRefCounted` from `sync::aref` instead of `types`.

This aligns with the ongoing effort to move `ARef` and
`AlwaysRefCounted` to sync.

Suggested-by: Benno Lossin <lossin@xxxxxxxxxx>
Link: https://github.com/Rust-for-Linux/linux/issues/1173
Signed-off-by: Shankari Anand <shankari.ak0208@xxxxxxxxx>
---
It part of a subsystem-wise split series, as suggested in:
https://lore.kernel.org/rust-for-linux/CANiq72=NSRMV_6UxXVgkebmWmbgN4i=sfRszr-G+x3W5A4DYOg@xxxxxxxxxxxxxx/T/#u
This split series is intended to ease review and subsystem-level maintenance.

The original moving patch is here:
https://lore.kernel.org/rust-for-linux/20250625111133.698481-1-shankari.ak0208@xxxxxxxxx/

Gradually the re-export from types.rs will be eliminated in the
future cycle.
---
 drivers/block/rnull.rs             | 3 +--
 rust/kernel/block/mq.rs            | 8 ++++----
 rust/kernel/block/mq/operations.rs | 2 +-
 rust/kernel/block/mq/request.rs    | 3 ++-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/block/rnull.rs b/drivers/block/rnull.rs
index d07e76ae2c13..80a0f7aa949e 100644
--- a/drivers/block/rnull.rs
+++ b/drivers/block/rnull.rs
@@ -20,8 +20,7 @@
     error::Result,
     new_mutex, pr_info,
     prelude::*,
-    sync::{Arc, Mutex},
-    types::ARef,
+    sync::{aref::ARef, Arc, Mutex},
 };
 
 module! {
diff --git a/rust/kernel/block/mq.rs b/rust/kernel/block/mq.rs
index 831445d37181..3e7e0de92604 100644
--- a/rust/kernel/block/mq.rs
+++ b/rust/kernel/block/mq.rs
@@ -20,7 +20,7 @@
 //! The kernel will interface with the block device driver by calling the method
 //! implementations of the `Operations` trait.
 //!
-//! IO requests are passed to the driver as [`kernel::types::ARef<Request>`]
+//! IO requests are passed to the driver as [`kernel::sync::aref::ARef<Request>`]
 //! instances. The `Request` type is a wrapper around the C `struct request`.
 //! The driver must mark end of processing by calling one of the
 //! `Request::end`, methods. Failure to do so can lead to deadlock or timeout
@@ -57,12 +57,12 @@
 //!
 //! ```rust
 //! use kernel::{
 //!     alloc::flags,
 //!     block::mq::*,
 //!     new_mutex,
 //!     prelude::*,
-//!     sync::{Arc, Mutex},
-//!     types::{ARef, ForeignOwnable},
+//!     sync::{aref::ARef, Arc, Mutex},
+//!     types::ForeignOwnable,
 //! };
 //!
 //! struct MyBlkDevice;
diff --git a/rust/kernel/block/mq/operations.rs b/rust/kernel/block/mq/operations.rs
index c2b98f507bcb..18d858763e08 100644
--- a/rust/kernel/block/mq/operations.rs
+++ b/rust/kernel/block/mq/operations.rs
@@ -10,7 +10,7 @@
     block::mq::Request,
     error::{from_result, Result},
     prelude::*,
-    types::ARef,
+    sync::aref::ARef,
 };
 use core::{marker::PhantomData, sync::atomic::AtomicU64, sync::atomic::Ordering};
 
diff --git a/rust/kernel/block/mq/request.rs b/rust/kernel/block/mq/request.rs
index fefd394f064a..9cca7852b309 100644
--- a/rust/kernel/block/mq/request.rs
+++ b/rust/kernel/block/mq/request.rs
@@ -8,7 +8,8 @@
     bindings,
     block::mq::Operations,
     error::Result,
-    types::{ARef, AlwaysRefCounted, Opaque},
+    sync::aref::{ARef, AlwaysRefCounted},
+    types::Opaque,
 };
 use core::{
     marker::PhantomData,
-- 
2.34.1





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