kernel/trace/tracing_map.h

50  * an instance of tracing_map_elt, where 'elt' in the latter part of
52  * tracing_map_elt is to hold values specific to the particular
108  * tracing_map_elt field to sort on (which the user saved when adding
113  * is created for each tracing_map_elt, again individually allocated
123  * the associated tracing_map_elt 'elt' field contained within the
138 struct tracing_map_elt {
149 	struct tracing_map_elt		*val;
159 	struct tracing_map_elt		*elt;
181 	((struct tracing_map_elt **)TRACING_MAP_ARRAY_ELT(array, idx))
209  * For a detailed description of tracing_map_elt objects please see
215  * @elt_alloc: When a tracing_map_elt is allocated, this function, if
218  *	(tracing_map_elt->private_data is meant for that purpose).
222  * @elt_free: When a tracing_map_elt is freed, this function is called
234 	int			(*elt_alloc)(struct tracing_map_elt *elt);
235 	void			(*elt_free)(struct tracing_map_elt *elt);
236 	void			(*elt_clear)(struct tracing_map_elt *elt);
237 	void			(*elt_init)(struct tracing_map_elt *elt);
256 extern struct tracing_map_elt *
258 extern struct tracing_map_elt *
266 extern void tracing_map_update_sum(struct tracing_map_elt *elt,
268 extern void tracing_map_set_var(struct tracing_map_elt *elt,
270 extern bool tracing_map_var_set(struct tracing_map_elt *elt, unsigned int i);
271 extern u64 tracing_map_read_sum(struct tracing_map_elt *elt, unsigned int i);
272 extern u64 tracing_map_read_var(struct tracing_map_elt *elt, unsigned int i);
273 extern u64 tracing_map_read_var_once(struct tracing_map_elt *elt, unsigned int i);