1 files changed, 26 insertions, 1 deletions
diff --git a/rust/helpers.c b/rust/helpers.c
index 70e59efd92bc..87ed0a5b6099 100644
--- a/rust/helpers.c
+++ b/rust/helpers.c
@@ -4,7 +4,7 @@
  * cannot be called either. This file explicitly creates functions ("helpers")
  * that wrap those so that they can be called from Rust.
  *
- * Even though Rust kernel modules should never use directly the bindings, some
+ * Even though Rust kernel modules should never use the bindings directly, some
  * of these helpers need to be exported because Rust generics and inlined
  * functions may not get their code generated in the crate where they are
  * defined. Other helpers, called from non-inline functions, may not be
@@ -23,11 +23,13 @@
 #include <kunit/test-bug.h>
 #include <linux/bug.h>
 #include <linux/build_bug.h>
+#include <linux/device.h>
 #include <linux/err.h>
 #include <linux/errname.h>
 #include <linux/mutex.h>
 #include <linux/refcount.h>
 #include <linux/sched/signal.h>
+#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
@@ -157,6 +159,13 @@ void rust_helper_init_work_with_key(struct work_struct *work, work_func_t func,
 }
 EXPORT_SYMBOL_GPL(rust_helper_init_work_with_key);
 
+void * __must_check __realloc_size(2)
+rust_helper_krealloc(const void *objp, size_t new_size, gfp_t flags)
+{
+	return krealloc(objp, new_size, flags);
+}
+EXPORT_SYMBOL_GPL(rust_helper_krealloc);
+
 /*
  * `bindgen` binds the C `size_t` type as the Rust `usize` type, so we can
  * use it in contexts where Rust expects a `usize` like slice (array) indices.
@@ -178,3 +187,19 @@ static_assert(
 	__alignof__(size_t) == __alignof__(uintptr_t),
 	"Rust code expects C `size_t` to match Rust `usize`"
 );
+
+// This will soon be moved to a separate file, so no need to merge with above.
+#include <linux/blk-mq.h>
+#include <linux/blkdev.h>
+
+void *rust_helper_blk_mq_rq_to_pdu(struct request *rq)
+{
+	return blk_mq_rq_to_pdu(rq);
+}
+EXPORT_SYMBOL_GPL(rust_helper_blk_mq_rq_to_pdu);
+
+struct request *rust_helper_blk_mq_rq_from_pdu(void *pdu)
+{
+	return blk_mq_rq_from_pdu(pdu);
+}
+EXPORT_SYMBOL_GPL(rust_helper_blk_mq_rq_from_pdu);