Commit 2cd10a49 authored by Joel Colledge's avatar Joel Colledge Committed by Jens Axboe
Browse files

lru_cache: remove unused lc_private, lc_set, lc_index_of 



Signed-off-by: default avatarJoel Colledge <joel.colledge@linbit.com>
Signed-off-by: default avatarChristoph Böhmwalder <christoph.boehmwalder@linbit.com>
Link: https://lore.kernel.org/r/20221122134301.69258-4-christoph.boehmwalder@linbit.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 99334384

include/linux/lru_cache.h

+0 −3
Original line number Diff line number Diff line
@@ -199,7 +199,6 @@ struct lru_cache { 
	unsigned long flags;





	void  *lc_private;

	const char *name;



	/* nr_elements there */
@@ -241,7 +240,6 @@ extern struct lru_cache *lc_create(const char *name, struct kmem_cache *cache, 
		unsigned e_count, size_t e_size, size_t e_off);

extern void lc_reset(struct lru_cache *lc);

extern void lc_destroy(struct lru_cache *lc);

extern void lc_set(struct lru_cache *lc, unsigned int enr, int index);

extern void lc_del(struct lru_cache *lc, struct lc_element *element);



extern struct lc_element *lc_get_cumulative(struct lru_cache *lc, unsigned int enr);
@@ -297,6 +295,5 @@ extern bool lc_is_used(struct lru_cache *lc, unsigned int enr); 
	container_of(ptr, type, member)



extern struct lc_element *lc_element_by_index(struct lru_cache *lc, unsigned i);

extern unsigned int lc_index_of(struct lru_cache *lc, struct lc_element *e);



#endif

lib/lru_cache.c

+0 −44
Original line number Diff line number Diff line
@@ -574,48 +574,6 @@ struct lc_element *lc_element_by_index(struct lru_cache *lc, unsigned i) 
	return lc->lc_element[i];

}



/**

 * lc_index_of

 * @lc: the lru cache to operate on

 * @e: the element to query for its index position in lc->element

 */

unsigned int lc_index_of(struct lru_cache *lc, struct lc_element *e)

{

	PARANOIA_LC_ELEMENT(lc, e);

	return e->lc_index;

}



/**

 * lc_set - associate index with label

 * @lc: the lru cache to operate on

 * @enr: the label to set

 * @index: the element index to associate label with.

 *

 * Used to initialize the active set to some previously recorded state.

 */

void lc_set(struct lru_cache *lc, unsigned int enr, int index)

{

	struct lc_element *e;

	struct list_head *lh;



	if (index < 0 || index >= lc->nr_elements)

		return;



	e = lc_element_by_index(lc, index);

	BUG_ON(e->lc_number != e->lc_new_number);

	BUG_ON(e->refcnt != 0);



	e->lc_number = e->lc_new_number = enr;

	hlist_del_init(&e->colision);

	if (enr == LC_FREE)

		lh = &lc->free;

	else {

		hlist_add_head(&e->colision, lc_hash_slot(lc, enr));

		lh = &lc->lru;

	}

	list_move(&e->list, lh);

}



/**

 * lc_seq_dump_details - Dump a complete LRU cache to seq in textual form.

 * @lc: the lru cache to operate on
@@ -650,7 +608,6 @@ void lc_seq_dump_details(struct seq_file *seq, struct lru_cache *lc, char *utext 
EXPORT_SYMBOL(lc_create);

EXPORT_SYMBOL(lc_reset);

EXPORT_SYMBOL(lc_destroy);

EXPORT_SYMBOL(lc_set);

EXPORT_SYMBOL(lc_del);

EXPORT_SYMBOL(lc_try_get);

EXPORT_SYMBOL(lc_find);
@@ -658,7 +615,6 @@ EXPORT_SYMBOL(lc_get); 
EXPORT_SYMBOL(lc_put);

EXPORT_SYMBOL(lc_committed);

EXPORT_SYMBOL(lc_element_by_index);

EXPORT_SYMBOL(lc_index_of);

EXPORT_SYMBOL(lc_seq_printf_stats);

EXPORT_SYMBOL(lc_seq_dump_details);

EXPORT_SYMBOL(lc_try_lock);