bcachefs: Pull out data_update.c

This is the start of reorganizing the data IO paths. The plan is to also
break apart io.c into data_read.c and data_write.c, and migrate_write
will be renamed to the data_update path.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 10 insertions, 35 deletions

diff --git a/fs/bcachefs/move.h b/fs/bcachefs/move.h
index 901d8f875946..6d273f67a82c 100644
--- a/fs/bcachefs/move.h
+++ b/fs/bcachefs/move.h
@@ -4,51 +4,26 @@
 
 #include "btree_iter.h"
 #include "buckets.h"
-#include "io_types.h"
+#include "data_update.h"
 #include "move_types.h"
 
 struct bch_read_bio;
-struct moving_context;
 
-enum data_cmd {
-	DATA_SKIP,
-	DATA_SCRUB,
-	DATA_ADD_REPLICAS,
-	DATA_REWRITE,
-	DATA_PROMOTE,
-};
-
-struct data_opts {
-	u16		target;
-	u8		rewrite_dev;
-	u8		nr_replicas;
-	int		btree_insert_flags;
-};
+struct moving_context {
+	/* Closure for waiting on all reads and writes to complete */
+	struct closure		cl;
 
-struct migrate_write {
-	enum btree_id		btree_id;
-	enum data_cmd		data_cmd;
-	struct data_opts	data_opts;
+	struct bch_move_stats	*stats;
 
-	unsigned		nr_ptrs_reserved;
+	struct list_head	reads;
 
-	struct moving_context	*ctxt;
+	/* in flight sectors: */
+	atomic_t		read_sectors;
+	atomic_t		write_sectors;
 
-	/* what we read: */
-	struct bch_extent_ptr	ptr;
-	u64			offset;
-
-	struct bch_write_op	op;
+	wait_queue_head_t	wait;
 };
 
-int bch2_migrate_index_update(struct bch_write_op *);
-void bch2_migrate_read_done(struct migrate_write *, struct bch_read_bio *);
-int bch2_migrate_write_init(struct bch_fs *, struct migrate_write *,
-			    struct write_point_specifier,
-			    struct bch_io_opts,
-			    enum data_cmd, struct data_opts,
-			    enum btree_id, struct bkey_s_c);
-
 typedef enum data_cmd (*move_pred_fn)(struct bch_fs *, void *,
 				struct bkey_s_c,
 				struct bch_io_opts *, struct data_opts *);