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Commit fdecee32 authored by Joe Thornber's avatar Joe Thornber Committed by Mike Snitzer
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dm cache policy mq: remove unused generation member of struct entry 



Remove to stop wasting memory.

Signed-off-by: default avatarJoe Thornber <ejt@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 3e45c91e

drivers/md/dm-cache-policy-mq.c

+0 −5
Original line number Diff line number Diff line
@@ -253,7 +253,6 @@ struct entry { 
	 */

	bool dirty:1;

	unsigned hit_count;

	unsigned generation;

};



/*
@@ -744,7 +743,6 @@ static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e, 
	new_e->oblock = e->oblock;

	new_e->dirty = false;

	new_e->hit_count = e->hit_count;

	new_e->generation = e->generation;



	del(mq, e);

	free_entry(&mq->pre_cache_pool, e);
@@ -796,7 +794,6 @@ static void insert_in_pre_cache(struct mq_policy *mq, 
	e->dirty = false;

	e->oblock = oblock;

	e->hit_count = 1;

	e->generation = mq->generation;

	push(mq, e);

}
@@ -829,7 +826,6 @@ static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock, 
	e->oblock = oblock;

	e->dirty = false;

	e->hit_count = 1;

	e->generation = mq->generation;

	push(mq, e);



	result->cblock = infer_cblock(&mq->cache_pool, e);
@@ -1026,7 +1022,6 @@ static int mq_load_mapping(struct dm_cache_policy *p, 
	e->oblock = oblock;

	e->dirty = false;	/* this gets corrected in a minute */

	e->hit_count = hint_valid ? hint : 1;

	e->generation = mq->generation;

	push(mq, e);



	return 0;