[PATCH v6 0/2] rust: alloc: kvec doc example and allocator unit tests

[Hui Zhu]

From: Hui Zhu <zhuhui@xxxxxxxxxx>

This patchset adds KUnit tests for allocator alignment
guarantees and improves kvec documentation.

Patch 1 adds KUnit tests for verifying alignment guarantees
in Rust kernel allocators. Tests cover Kmalloc, Vmalloc
and KVmalloc with both standard (128B) and large page-aligned
(8192B) allocations.

Patch 2 adds a practical usage example for KVec::as_slice
method, showing how to create KVec, push elements and convert
to a slice.

Both patches are co-developed with Geliang Tang. Based on [1].
Tested on x86_64 using KUnit.

Changelog:
v6:
According to the comments of Danilo, updated test for allocator.rs
and allocator rebase onto [1].
v5:
According to the comments of Danilo, change to use generic struct and
allocator Generics in allocator.rs.
v4:
According to the comments of, add the error check for push.
v3:
According to the comments of Danilo and Boqun, move KVec test to doc
example and move VBox to allocator unit tests.
v2:
According to the comments of Danilo, updated the commit to samples the
usage of VBox and KVec.

[1] https://lore.kernel.org/lkml/20250715135645.2230065-1-vitaly.wool@xxxxxxxxxxx/

Hui Zhu (2):
  rust: allocator: add KUnit tests for alignment guarantees
  rust: alloc: kvec: add doc example for as_slice method

 rust/kernel/alloc/allocator.rs | 56 ++++++++++++++++++++++++++++++++++
 rust/kernel/alloc/kvec.rs      | 10 ++++++
 2 files changed, 66 insertions(+)

-- 
2.43.0