mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 23:51:39 +00:00
261af2f1c6
This adds move_ctxt_wait_event_timeout(), which can sleep for a timeout while also issueing pending moves as reads complete. Co-developed-by: Daniel Hill <daniel@gluo.nz> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
159 lines
4.4 KiB
C
159 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_MOVE_H
|
|
#define _BCACHEFS_MOVE_H
|
|
|
|
#include "bbpos.h"
|
|
#include "bcachefs_ioctl.h"
|
|
#include "btree_iter.h"
|
|
#include "buckets.h"
|
|
#include "data_update.h"
|
|
#include "move_types.h"
|
|
|
|
struct bch_read_bio;
|
|
|
|
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;
|
|
};
|
|
|
|
#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; \
|
|
})
|
|
|
|
#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)
|
|
|
|
typedef bool (*move_pred_fn)(struct bch_fs *, void *, struct bkey_s_c,
|
|
struct bch_io_opts *, struct data_update_opts *);
|
|
|
|
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_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;
|
|
};
|
|
|
|
struct per_snapshot_io_opts {
|
|
u64 cur_inum;
|
|
struct bch_io_opts fs_io_opts;
|
|
DARRAY(struct snapshot_io_opts_entry) d;
|
|
};
|
|
|
|
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 *,
|
|
struct bbpos start,
|
|
struct bbpos end,
|
|
struct bch_ratelimit *,
|
|
struct bch_move_stats *,
|
|
struct write_point_specifier,
|
|
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_evacuate_bucket(struct bch_fs *, struct bpos, int,
|
|
struct data_update_opts,
|
|
struct bch_ratelimit *,
|
|
struct bch_move_stats *,
|
|
struct write_point_specifier,
|
|
bool);
|
|
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 *, 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 */
|