1 files changed, 26 insertions, 0 deletions
diff --git a/rust/kernel/src/allocator.rs b/rust/kernel/src/allocator.rs
new file mode 100644
index 000000000000..27647be92b51
--- /dev/null
+++ b/rust/kernel/src/allocator.rs
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use core::alloc::{GlobalAlloc, Layout};
+use core::ptr;
+
+use crate::bindings;
+use crate::c_types;
+
+pub struct KernelAllocator;
+
+unsafe impl GlobalAlloc for KernelAllocator {
+    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
+        // krealloc is used instead of kmalloc because kmalloc is an inline function and can't be
+        // bound to as a result
+        bindings::krealloc(ptr::null(), layout.size(), bindings::GFP_KERNEL) as *mut u8
+    }
+
+    unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) {
+        bindings::kfree(ptr as *const c_types::c_void);
+    }
+}
+
+#[alloc_error_handler]
+fn oom(_layout: Layout) -> ! {
+    panic!("Out of memory!");
+}