#ifndef _BCACHEFS_MOVE_H
#define _BCACHEFS_MOVE_H
+#include "bbpos.h"
+#include "bcachefs_ioctl.h"
#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 {
+ struct btree_trans *trans;
+ struct list_head list;
+ void *fn;
+
+ struct bch_ratelimit *rate;
+ struct bch_move_stats *stats;
+ struct write_point_specifier wp;
+ bool wait_on_copygc;
+ bool write_error;
+
+ /* For waiting on outstanding reads and writes: */
+ struct closure cl;
+
+ struct mutex lock;
+ struct list_head reads;
+ struct list_head ios;
+
+ /* in flight sectors: */
+ atomic_t read_sectors;
+ atomic_t write_sectors;
+ atomic_t read_ios;
+ atomic_t write_ios;
+
+ wait_queue_head_t wait;
};
-struct migrate_write {
- enum btree_id btree_id;
- enum data_cmd data_cmd;
- struct data_opts data_opts;
+#define move_ctxt_wait_event_timeout(_ctxt, _cond, _timeout) \
+({ \
+ int _ret = 0; \
+ while (true) { \
+ bool cond_finished = false; \
+ bch2_moving_ctxt_do_pending_writes(_ctxt); \
+ \
+ if (_cond) \
+ break; \
+ bch2_trans_unlock_long((_ctxt)->trans); \
+ _ret = __wait_event_timeout((_ctxt)->wait, \
+ bch2_moving_ctxt_next_pending_write(_ctxt) || \
+ (cond_finished = (_cond)), _timeout); \
+ if (_ret || ( cond_finished)) \
+ break; \
+ } \
+ _ret; \
+})
- unsigned nr_ptrs_reserved;
+#define move_ctxt_wait_event(_ctxt, _cond) \
+do { \
+ bool cond_finished = false; \
+ bch2_moving_ctxt_do_pending_writes(_ctxt); \
+ \
+ if (_cond) \
+ break; \
+ bch2_trans_unlock_long((_ctxt)->trans); \
+ __wait_event((_ctxt)->wait, \
+ bch2_moving_ctxt_next_pending_write(_ctxt) || \
+ (cond_finished = (_cond))); \
+ if (cond_finished) \
+ break; \
+} while (1)
- struct moving_context *ctxt;
+typedef bool (*move_pred_fn)(struct bch_fs *, void *, struct bkey_s_c,
+ struct bch_io_opts *, struct data_update_opts *);
- /* what we read: */
- struct bch_extent_ptr ptr;
- u64 offset;
+extern const char * const bch2_data_ops_strs[];
- struct bch_write_op op;
+void bch2_moving_ctxt_exit(struct moving_context *);
+void bch2_moving_ctxt_init(struct moving_context *, struct bch_fs *,
+ struct bch_ratelimit *, struct bch_move_stats *,
+ struct write_point_specifier, bool);
+struct moving_io *bch2_moving_ctxt_next_pending_write(struct moving_context *);
+void bch2_moving_ctxt_do_pending_writes(struct moving_context *);
+void bch2_moving_ctxt_flush_all(struct moving_context *);
+void bch2_move_ctxt_wait_for_io(struct moving_context *);
+int bch2_move_ratelimit(struct moving_context *);
+
+/* Inodes in different snapshots may have different IO options: */
+struct snapshot_io_opts_entry {
+ u32 snapshot;
+ struct bch_io_opts io_opts;
};
-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);
+struct per_snapshot_io_opts {
+ u64 cur_inum;
+ struct bch_io_opts fs_io_opts;
+ DARRAY(struct snapshot_io_opts_entry) d;
+};
-typedef enum data_cmd (*move_pred_fn)(struct bch_fs *, void *,
- struct bkey_s_c,
- struct bch_io_opts *, struct data_opts *);
+static inline void per_snapshot_io_opts_init(struct per_snapshot_io_opts *io_opts, struct bch_fs *c)
+{
+ memset(io_opts, 0, sizeof(*io_opts));
+ io_opts->fs_io_opts = bch2_opts_to_inode_opts(c->opts);
+}
+static inline void per_snapshot_io_opts_exit(struct per_snapshot_io_opts *io_opts)
+{
+ darray_exit(&io_opts->d);
+}
+
+struct bch_io_opts *bch2_move_get_io_opts(struct btree_trans *,
+ struct per_snapshot_io_opts *, struct bkey_s_c);
+int bch2_move_get_io_opts_one(struct btree_trans *, struct bch_io_opts *, struct bkey_s_c);
+
+int bch2_scan_old_btree_nodes(struct bch_fs *, struct bch_move_stats *);
+
+int bch2_move_extent(struct moving_context *,
+ struct move_bucket_in_flight *,
+ struct btree_iter *,
+ struct bkey_s_c,
+ struct bch_io_opts,
+ struct data_update_opts);
+
+int __bch2_move_data(struct moving_context *,
+ struct bbpos,
+ struct bbpos,
+ move_pred_fn, void *);
int bch2_move_data(struct bch_fs *,
- enum btree_id, struct bpos,
- enum btree_id, struct bpos,
+ struct bbpos start,
+ struct bbpos end,
struct bch_ratelimit *,
+ struct bch_move_stats *,
struct write_point_specifier,
- move_pred_fn, void *,
- struct bch_move_stats *);
+ bool,
+ move_pred_fn, void *);
+int bch2_evacuate_bucket(struct moving_context *,
+ struct move_bucket_in_flight *,
+ struct bpos, int,
+ struct data_update_opts);
int bch2_data_job(struct bch_fs *,
struct bch_move_stats *,
struct bch_ioctl_data);
+void bch2_move_stats_to_text(struct printbuf *, struct bch_move_stats *);
+void bch2_move_stats_exit(struct bch_move_stats *, struct bch_fs *);
+void bch2_move_stats_init(struct bch_move_stats *, const char *);
+
+void bch2_fs_moving_ctxts_to_text(struct printbuf *, struct bch_fs *);
+
+void bch2_fs_move_init(struct bch_fs *);
+
#endif /* _BCACHEFS_MOVE_H */
projects / bcachefs-tools-debian / blobdiff