zram: use __bio_add_page for adding single page to bio

[linux-block.git] / rust / helpers.c

diff --git a/rust/helpers.c b/rust/helpers.c
index 446e3cfdb935c16f9a85c24c231e31b516f67774..81e80261d597c669c05c502a2bb0eae1493de577 100644 (file)
--- a/rust/helpers.c
+++ b/rust/helpers.c
@@ -24,6 +24,8 @@
 #include <linux/refcount.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
+#include <linux/sched/signal.h>
+#include <linux/wait.h>
 
 __noreturn void rust_helper_BUG(void)
 {
@@ -60,6 +62,18 @@ void rust_helper_spin_unlock(spinlock_t *lock)
 }
 EXPORT_SYMBOL_GPL(rust_helper_spin_unlock);
 
+void rust_helper_init_wait(struct wait_queue_entry *wq_entry)
+{
+       init_wait(wq_entry);
+}
+EXPORT_SYMBOL_GPL(rust_helper_init_wait);
+
+int rust_helper_signal_pending(struct task_struct *t)
+{
+       return signal_pending(t);
+}
+EXPORT_SYMBOL_GPL(rust_helper_signal_pending);
+
 refcount_t rust_helper_REFCOUNT_INIT(int n)
 {
        return (refcount_t)REFCOUNT_INIT(n);
@@ -96,6 +110,24 @@ long rust_helper_PTR_ERR(__force const void *ptr)
 }
 EXPORT_SYMBOL_GPL(rust_helper_PTR_ERR);
 
+struct task_struct *rust_helper_get_current(void)
+{
+       return current;
+}
+EXPORT_SYMBOL_GPL(rust_helper_get_current);
+
+void rust_helper_get_task_struct(struct task_struct *t)
+{
+       get_task_struct(t);
+}
+EXPORT_SYMBOL_GPL(rust_helper_get_task_struct);
+
+void rust_helper_put_task_struct(struct task_struct *t)
+{
+       put_task_struct(t);
+}
+EXPORT_SYMBOL_GPL(rust_helper_put_task_struct);
+
 /*
  * We use `bindgen`'s `--size_t-is-usize` option to bind the C `size_t` type
  * as the Rust `usize` type, so we can use it in contexts where Rust