Merging upstream version 6.9.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/drivers/md/dm-vdo/funnel-workqueue.h b/drivers/md/dm-vdo/funnel-workqueue.h
new file mode 100644
index 0000000000..b5be6e9e83
--- /dev/null
+++ b/drivers/md/dm-vdo/funnel-workqueue.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2023 Red Hat
+ */
+
+#ifndef VDO_WORK_QUEUE_H
+#define VDO_WORK_QUEUE_H
+
+#include <linux/sched.h> /* for TASK_COMM_LEN */
+
+#include "types.h"
+
+enum {
+	MAX_VDO_WORK_QUEUE_NAME_LEN = TASK_COMM_LEN,
+};
+
+struct vdo_work_queue_type {
+	void (*start)(void *context);
+	void (*finish)(void *context);
+	enum vdo_completion_priority max_priority;
+	enum vdo_completion_priority default_priority;
+};
+
+struct vdo_completion;
+struct vdo_thread;
+struct vdo_work_queue;
+
+int vdo_make_work_queue(const char *thread_name_prefix, const char *name,
+			struct vdo_thread *owner, const struct vdo_work_queue_type *type,
+			unsigned int thread_count, void *thread_privates[],
+			struct vdo_work_queue **queue_ptr);
+
+void vdo_enqueue_work_queue(struct vdo_work_queue *queue, struct vdo_completion *completion);
+
+void vdo_finish_work_queue(struct vdo_work_queue *queue);
+
+void vdo_free_work_queue(struct vdo_work_queue *queue);
+
+void vdo_dump_work_queue(struct vdo_work_queue *queue);
+
+void vdo_dump_completion_to_buffer(struct vdo_completion *completion, char *buffer,
+				   size_t length);
+
+void *vdo_get_work_queue_private_data(void);
+struct vdo_work_queue *vdo_get_current_work_queue(void);
+struct vdo_thread *vdo_get_work_queue_owner(struct vdo_work_queue *queue);
+
+bool __must_check vdo_work_queue_type_is(struct vdo_work_queue *queue,
+					 const struct vdo_work_queue_type *type);
+
+#endif /* VDO_WORK_QUEUE_H */