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crush: remove parent maps 

These were used for the ill-fated forcefeed feature.  Remove them.

Reflects ceph.git commit ebdf80edfecfbd5a842b71fbe5732857994380c1.

Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Sage Weil 2012-05-07 15:36:35 -07:00
parent 41ebcc0907
commit fc7c3ae5ab
3 changed files with 0 additions and 43 deletions
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11
include/linux/crush/crush.h
View File

@ -151,16 +151,6 @@ struct crush_map {
struct crush_bucket **buckets;
struct crush_rule **rules;
/*
* Parent pointers to identify the parent bucket a device or
* bucket in the hierarchy. If an item appears more than
* once, this is the _last_ time it appeared (where buckets
* are processed in bucket id order, from -1 on down to
* -max_buckets.
*/
__u32 *bucket_parents;
__u32 *device_parents;
__s32 max_buckets;
__u32 max_rules;
__s32 max_devices;
@ -169,7 +159,6 @@ struct crush_map {
/* crush.c */
extern int crush_get_bucket_item_weight(const struct crush_bucket *b, int pos);
extern void crush_calc_parents(struct crush_map *map);
extern void crush_destroy_bucket_uniform(struct crush_bucket_uniform *b);
extern void crush_destroy_bucket_list(struct crush_bucket_list *b);
extern void crush_destroy_bucket_tree(struct crush_bucket_tree *b);

25
net/ceph/crush/crush.c
View File

@ -46,29 +46,6 @@ int crush_get_bucket_item_weight(const struct crush_bucket *b, int p)
return 0;
}
/**
* crush_calc_parents - Calculate parent vectors for the given crush map.
* @map: crush_map pointer
*/
void crush_calc_parents(struct crush_map *map)
{
int i, b, c;
for (b = 0; b < map->max_buckets; b++) {
if (map->buckets[b] == NULL)
continue;
for (i = 0; i < map->buckets[b]->size; i++) {
c = map->buckets[b]->items[i];
BUG_ON(c >= map->max_devices ||
c < -map->max_buckets);
if (c >= 0)
map->device_parents[c] = map->buckets[b]->id;
else
map->bucket_parents[-1-c] = map->buckets[b]->id;
}
}
}
void crush_destroy_bucket_uniform(struct crush_bucket_uniform *b)
{
kfree(b->h.perm);
@ -143,8 +120,6 @@ void crush_destroy(struct crush_map *map)
kfree(map->rules);
}
kfree(map->bucket_parents);
kfree(map->device_parents);
kfree(map);
}

7
net/ceph/osdmap.c
View File

@ -161,13 +161,6 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
c->max_rules = ceph_decode_32(p);
c->max_devices = ceph_decode_32(p);
c->device_parents = kcalloc(c->max_devices, sizeof(u32), GFP_NOFS);
if (c->device_parents == NULL)
goto badmem;
c->bucket_parents = kcalloc(c->max_buckets, sizeof(u32), GFP_NOFS);
if (c->bucket_parents == NULL)
goto badmem;
c->buckets = kcalloc(c->max_buckets, sizeof(*c->buckets), GFP_NOFS);
if (c->buckets == NULL)
goto badmem;