summaryrefslogtreecommitdiff
path: root/rust/kernel/alloc.rs
diff options
context:
space:
mode:
Diffstat (limited to 'rust/kernel/alloc.rs')
-rw-r--r--rust/kernel/alloc.rs8
1 files changed, 8 insertions, 0 deletions
diff --git a/rust/kernel/alloc.rs b/rust/kernel/alloc.rs
index a2c49e5494d3..907301334d8c 100644
--- a/rust/kernel/alloc.rs
+++ b/rust/kernel/alloc.rs
@@ -137,6 +137,14 @@ pub mod flags {
/// - Implementers must ensure that all trait functions abide by the guarantees documented in the
/// `# Guarantees` sections.
pub unsafe trait Allocator {
+ /// The minimum alignment satisfied by all allocations from this allocator.
+ ///
+ /// # Guarantees
+ ///
+ /// Any pointer allocated by this allocator is guaranteed to be aligned to `MIN_ALIGN` even if
+ /// the requested layout has a smaller alignment.
+ const MIN_ALIGN: usize;
+
/// Allocate memory based on `layout` and `flags`.
///
/// On success, returns a buffer represented as `NonNull<[u8]>` that satisfies the layout