drm: Remove unused members from struct drm_open_hash
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_hashtab.c b/drivers/gpu/drm/drm_hashtab.c
index a93d7b4..e3a7568 100644
--- a/drivers/gpu/drm/drm_hashtab.c
+++ b/drivers/gpu/drm/drm_hashtab.c
@@ -39,27 +39,18 @@
int drm_ht_create(struct drm_open_hash *ht, unsigned int order)
{
- unsigned int i;
+ unsigned int size = 1 << order;
- ht->size = 1 << order;
ht->order = order;
- ht->fill = 0;
ht->table = NULL;
- ht->use_vmalloc = ((ht->size * sizeof(*ht->table)) > PAGE_SIZE);
- if (!ht->use_vmalloc) {
- ht->table = kcalloc(ht->size, sizeof(*ht->table), GFP_KERNEL);
- }
- if (!ht->table) {
- ht->use_vmalloc = 1;
- ht->table = vmalloc(ht->size*sizeof(*ht->table));
- }
+ if (size <= PAGE_SIZE / sizeof(*ht->table))
+ ht->table = kcalloc(size, sizeof(*ht->table), GFP_KERNEL);
+ else
+ ht->table = vzalloc(size*sizeof(*ht->table));
if (!ht->table) {
DRM_ERROR("Out of memory for hash table\n");
return -ENOMEM;
}
- for (i=0; i< ht->size; ++i) {
- INIT_HLIST_HEAD(&ht->table[i]);
- }
return 0;
}
EXPORT_SYMBOL(drm_ht_create);
@@ -180,7 +171,6 @@
list = drm_ht_find_key(ht, key);
if (list) {
hlist_del_init(list);
- ht->fill--;
return 0;
}
return -EINVAL;
@@ -189,7 +179,6 @@
int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item)
{
hlist_del_init(&item->head);
- ht->fill--;
return 0;
}
EXPORT_SYMBOL(drm_ht_remove_item);
@@ -197,10 +186,10 @@
void drm_ht_remove(struct drm_open_hash *ht)
{
if (ht->table) {
- if (ht->use_vmalloc)
- vfree(ht->table);
- else
+ if ((PAGE_SIZE / sizeof(*ht->table)) >> ht->order)
kfree(ht->table);
+ else
+ vfree(ht->table);
ht->table = NULL;
}
}
diff --git a/include/drm/drm_hashtab.h b/include/drm/drm_hashtab.h
index 0af087a..3650d5d 100644
--- a/include/drm/drm_hashtab.h
+++ b/include/drm/drm_hashtab.h
@@ -45,14 +45,10 @@
};
struct drm_open_hash {
- unsigned int size;
- unsigned int order;
- unsigned int fill;
struct hlist_head *table;
- int use_vmalloc;
+ u8 order;
};
-
extern int drm_ht_create(struct drm_open_hash *ht, unsigned int order);
extern int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item);
extern int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,