io_uring: make io_uring_types.h public

Move io_uring types to linux/include, need them public so tracing can
see the definitions and we can clean trace/events/io_uring.h

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a15f12e8cb7289b2de0deaddcc7518d98a132d17.1655384063.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

include/linux/io_uring_types.h

@@ -6,8 +6,32 @@
 #include <linux/bitmap.h>
 #include <uapi/linux/io_uring.h>
 
-#include "io-wq.h"
-#include "filetable.h"
+struct io_wq_work_node {
+	struct io_wq_work_node *next;
+};
+
+struct io_wq_work_list {
+	struct io_wq_work_node *first;
+	struct io_wq_work_node *last;
+};
+
+struct io_wq_work {
+	struct io_wq_work_node list;
+	unsigned flags;
+	/* place it here instead of io_kiocb as it fills padding and saves 4B */
+	int cancel_seq;
+};
+
+struct io_fixed_file {
+	/* file * with additional FFS_* flags */
+	unsigned long file_ptr;
+};
+
+struct io_file_table {
+	struct io_fixed_file *files;
+	unsigned long *bitmap;
+	unsigned int alloc_hint;
+};
 
 struct io_hash_bucket {
 	spinlock_t		lock;

io_uring/filetable.h

@@ -22,17 +22,6 @@ struct io_kiocb;
 #endif
 #define FFS_MASK		~(FFS_NOWAIT|FFS_ISREG|FFS_SCM)
 
-struct io_fixed_file {
-	/* file * with additional FFS_* flags */
-	unsigned long file_ptr;
-};
-
-struct io_file_table {
-	struct io_fixed_file *files;
-	unsigned long *bitmap;
-	unsigned int alloc_hint;
-};
-
 bool io_alloc_file_tables(struct io_file_table *table, unsigned nr_files);
 void io_free_file_tables(struct io_file_table *table);
 

io_uring/io-wq.h

@@ -2,6 +2,7 @@
 #define INTERNAL_IO_WQ_H
 
 #include <linux/refcount.h>
+#include <linux/io_uring_types.h>
 
 struct io_wq;
 
@@ -20,15 +21,6 @@ enum io_wq_cancel {
 	IO_WQ_CANCEL_NOTFOUND,	/* work not found */
 };
 
-struct io_wq_work_node {
-	struct io_wq_work_node *next;
-};
-
-struct io_wq_work_list {
-	struct io_wq_work_node *first;
-	struct io_wq_work_node *last;
-};
-
 #define wq_list_for_each(pos, prv, head)			\
 	for (pos = (head)->first, prv = NULL; pos; prv = pos, pos = (pos)->next)
 
@@ -152,13 +144,6 @@ struct io_wq_work_node *wq_stack_extract(struct io_wq_work_node *stack)
 	return node;
 }
 
-struct io_wq_work {
-	struct io_wq_work_node list;
-	unsigned flags;
-	/* place it here instead of io_kiocb as it fills padding and saves 4B */
-	int cancel_seq;
-};
-
 static inline struct io_wq_work *wq_next_work(struct io_wq_work *work)
 {
 	if (!work->list.next)

io_uring/io_uring.h

@@ -3,7 +3,9 @@
 
 #include <linux/errno.h>
 #include <linux/lockdep.h>
-#include "io_uring_types.h"
+#include <linux/io_uring_types.h>
+#include "io-wq.h"
+#include "filetable.h"
 
 #ifndef CREATE_TRACE_POINTS
 #include <trace/events/io_uring.h>

io_uring/refs.h

@@ -2,7 +2,7 @@
 #define IOU_REQ_REF_H
 
 #include <linux/atomic.h>
-#include "io_uring_types.h"
+#include <linux/io_uring_types.h>
 
 /*
  * Shamelessly stolen from the mm implementation of page reference checking,