diff options
| author | Benno Lossin <benno.lossin@proton.me> | 2025-03-07 23:49:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-13 13:01:45 +0100 |
| commit | 2dbf251264980198d6cc559e8d4d608ae6a3aa7a (patch) | |
| tree | c093373bdddf94ba4ed021a354a7daeea78c44d6 /rust/kernel/alloc.rs | |
| parent | 22e1e850e24f3fa8e4df713e651f15cbdc89dd6b (diff) | |
rust: alloc: introduce `ArrayLayout`
commit 9e7bbfa182767f638ba61dba3518ff78da9f31ff upstream.
When allocating memory for arrays using allocators, the `Layout::array`
function is typically used. It returns a result, since the given size
might be too big. However, `Vec` and its iterators store their allocated
capacity and thus they already did check that the size is not too big.
The `ArrayLayout` type provides this exact behavior, as it can be
infallibly converted into a `Layout`. Instead of a `usize` capacity,
`Vec` and other similar array-storing types can use `ArrayLayout`
instead.
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20241004154149.93856-16-dakr@kernel.org
[ Formatted a few comments. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/kernel/alloc.rs')
| -rw-r--r-- | rust/kernel/alloc.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/rust/kernel/alloc.rs b/rust/kernel/alloc.rs index 94f4de5e0cdc..c679d93b0523 100644 --- a/rust/kernel/alloc.rs +++ b/rust/kernel/alloc.rs @@ -5,6 +5,7 @@ #[cfg(not(any(test, testlib)))] pub mod allocator; pub mod kbox; +pub mod layout; pub mod vec_ext; #[cfg(any(test, testlib))] |