1 /* SPDX-License-Identifier: GPL-2.0-only */
11 #include "dm-block-manager.h"
28 	 * Extensions do not appear in this count until after commit has
31 	int (*get_nr_blocks)(struct dm_space_map *sm, dm_block_t *count);
38 	 * have blocks with a zero reference count that will not be
41 	int (*get_nr_free)(struct dm_space_map *sm, dm_block_t *count);
46 	int (*set_count)(struct dm_space_map *sm, dm_block_t b, uint32_t count);
67 	 * You can register one threshold callback which is edge-triggered
68 	 * when the free space in the space map drops below the threshold.
71 					   dm_block_t threshold,
76 /*----------------------------------------------------------------*/
81 		sm->destroy(sm);  in dm_sm_destroy()
86 	return sm->extend(sm, extra_blocks);  in dm_sm_extend()
89 static inline int dm_sm_get_nr_blocks(struct dm_space_map *sm, dm_block_t *count)  in dm_sm_get_nr_blocks()  argument
91 	return sm->get_nr_blocks(sm, count);  in dm_sm_get_nr_blocks()
94 static inline int dm_sm_get_nr_free(struct dm_space_map *sm, dm_block_t *count)  in dm_sm_get_nr_free()  argument
96 	return sm->get_nr_free(sm, count);  in dm_sm_get_nr_free()
102 	return sm->get_count(sm, b, result);  in dm_sm_get_count()
108 	return sm->count_is_more_than_one(sm, b, result);  in dm_sm_count_is_more_than_one()
112 				  uint32_t count)  in dm_sm_set_count()  argument
114 	return sm->set_count(sm, b, count);  in dm_sm_set_count()
119 	return sm->commit(sm);  in dm_sm_commit()
124 	return sm->inc_blocks(sm, b, e);  in dm_sm_inc_blocks()
134 	return sm->dec_blocks(sm, b, e);  in dm_sm_dec_blocks()
144 	return sm->new_block(sm, b);  in dm_sm_new_block()
149 	return sm->root_size(sm, result);  in dm_sm_root_size()
154 	return sm->copy_root(sm, copy_to_here_le, len);  in dm_sm_copy_root()
158 						    dm_block_t threshold,  in dm_sm_register_threshold_callback()  argument
162 	if (sm->register_threshold_callback)  in dm_sm_register_threshold_callback()
163 		return sm->register_threshold_callback(sm, threshold, fn, context);  in dm_sm_register_threshold_callback()
165 	return -EINVAL;  in dm_sm_register_threshold_callback()