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dm cache policy mq: remove unused generation member of struct entry 

Remove to stop wasting memory.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Joe Thornber 2015-02-20 13:54:14 +00:00 committed by Mike Snitzer
parent 3e45c91e5c
commit fdecee3224
1 changed files with 0 additions and 5 deletions
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5
drivers/md/dm-cache-policy-mq.c
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@ -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;