diff options
Diffstat (limited to 'drivers/md/dm.h')
| -rw-r--r-- | drivers/md/dm.h | 44 |
1 files changed, 28 insertions, 16 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h index d7c4f6606b5f..5201df03ce40 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -45,37 +45,31 @@ struct dm_dev_internal { struct dm_table; struct dm_md_mempools; +struct dm_target_io; +struct dm_io; /*----------------------------------------------------------------- * Internal table functions. *---------------------------------------------------------------*/ void dm_table_event_callback(struct dm_table *t, void (*fn)(void *), void *context); -struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index); struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector); bool dm_table_has_no_data_devices(struct dm_table *table); int dm_calculate_queue_limits(struct dm_table *table, struct queue_limits *limits); -void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, - struct queue_limits *limits); +int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, + struct queue_limits *limits); struct list_head *dm_table_get_devices(struct dm_table *t); void dm_table_presuspend_targets(struct dm_table *t); void dm_table_presuspend_undo_targets(struct dm_table *t); void dm_table_postsuspend_targets(struct dm_table *t); int dm_table_resume_targets(struct dm_table *t); -int dm_table_any_congested(struct dm_table *t, int bdi_bits); enum dm_queue_mode dm_table_get_type(struct dm_table *t); struct target_type *dm_table_get_immutable_target_type(struct dm_table *t); struct dm_target *dm_table_get_immutable_target(struct dm_table *t); struct dm_target *dm_table_get_wildcard_target(struct dm_table *t); bool dm_table_bio_based(struct dm_table *t); bool dm_table_request_based(struct dm_table *t); -void dm_table_free_md_mempools(struct dm_table *t); -struct dm_md_mempools *dm_table_get_md_mempools(struct dm_table *t); -bool dm_table_supports_dax(struct dm_table *t, iterate_devices_callout_fn fn, - int *blocksize); -int device_supports_dax(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data); void dm_lock_md_type(struct mapped_device *md); void dm_unlock_md_type(struct mapped_device *md); @@ -101,6 +95,30 @@ int dm_setup_md_queue(struct mapped_device *md, struct dm_table *t); */ #define dm_target_hybrid(t) (dm_target_bio_based(t) && dm_target_request_based(t)) +/* + * Zoned targets related functions. + */ +int dm_set_zones_restrictions(struct dm_table *t, struct request_queue *q); +void dm_zone_endio(struct dm_io *io, struct bio *clone); +#ifdef CONFIG_BLK_DEV_ZONED +void dm_cleanup_zoned_dev(struct mapped_device *md); +int dm_blk_report_zones(struct gendisk *disk, sector_t sector, + unsigned int nr_zones, report_zones_cb cb, void *data); +bool dm_is_zone_write(struct mapped_device *md, struct bio *bio); +int dm_zone_map_bio(struct dm_target_io *io); +#else +static inline void dm_cleanup_zoned_dev(struct mapped_device *md) {} +#define dm_blk_report_zones NULL +static inline bool dm_is_zone_write(struct mapped_device *md, struct bio *bio) +{ + return false; +} +static inline int dm_zone_map_bio(struct dm_target_io *tio) +{ + return DM_MAPIO_KILL; +} +#endif + /*----------------------------------------------------------------- * A registry of target types. *---------------------------------------------------------------*/ @@ -180,12 +198,9 @@ int dm_open_count(struct mapped_device *md); int dm_lock_for_deletion(struct mapped_device *md, bool mark_deferred, bool only_deferred); int dm_cancel_deferred_remove(struct mapped_device *md); int dm_request_based(struct mapped_device *md); -sector_t dm_get_size(struct mapped_device *md); -struct request_queue *dm_get_md_queue(struct mapped_device *md); int dm_get_table_device(struct mapped_device *md, dev_t dev, fmode_t mode, struct dm_dev **result); void dm_put_table_device(struct mapped_device *md, struct dm_dev *d); -struct dm_stats *dm_get_stats(struct mapped_device *md); int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action, unsigned cookie); @@ -202,9 +217,6 @@ void dm_kcopyd_exit(void); /* * Mempool operations */ -struct dm_md_mempools *dm_alloc_md_mempools(struct mapped_device *md, enum dm_queue_mode type, - unsigned integrity, unsigned per_bio_data_size, - unsigned min_pool_size); void dm_free_md_mempools(struct dm_md_mempools *pools); /* |